Changzhou Jiayuan Chemical: UAN--The Cornerstone of High-Efficiency Nitrogen (Part 1)

Fluorochemical Products R&D Center, Changzhou Jiayuan Chemical Co., Ltd.Changzhou Jiayuan Chemical Co., Ltd. focuses on the field of fluorochemistry and has built a complete industrial chain from fluorite to high - purity hydrogen fluoride, electronic-grade hydrofluoric acid, trifluorochloroethylene, octafluorocyclobutane, inorganic fluoride salt series, boron-10 acid, electronic specialty gases, and downstream high-end fluorinated liquids (such as HFE449), truly achieving vertical integration throughout the AI big data market.Changzhou Jiayuan Chemical Co., Ltd., relying on its self-controllable raw material advantages and large-scale production capabilities, can ensure stable product quality and reliable supply from source to finished product. The company's products are widely used in cutting-edge fields such as precision manufacturing cleaning, electronic heat dissipation and cooling, new energy, and semiconductor testing, and the company is committed to providing global customers with high-performance, low-environmental-impact fluorochemical solutions.Changzhou Jiayuan Chemical Co., Ltd. will continue to focus on the fluorochemical industry chain, promote the technological iteration and industrialization of green fluorosolvents, and contribute to the sustainable development of the industry. I. Introduction: The “Nitrogen Efficiency” Challenge in Modern AgricultureNowadays, the Urea Ammonium Nitrate solution (UAN) (https://www.jy-chemical.com/urea-ammonium-nitrate-solution-product/), leveraging its unique properties, has become an indispensable “nitrogen source cornerstone” within high-efficiency liquid fertilizer systems. Companies like Changzhou Jiayuan Chemical Co., Ltd., by constructing a comprehensive liquid fertilizer matrix that covers UAN, macro-elements, secondary nutrients, humic acids, and amino acids, are providing modern agriculture with an upgraded pathway—moving from “single-element nitrogen supplementation” to “complete crop nutrition”. II. UAN: The “High-Efficiency Nitrogen Engine” Within the Liquid Fertilizer MatrixUAN’s role as the cornerstone of a liquid fertilizer system stems from two irreplaceable attributes.First, its exceptional compatibility and compounding ability. The UAN solution is clear, transparent, and free of impurities, allowing it to be stably miscible in any proportion with liquid phosphate fertilizers, potash fertilizers, secondary nutrients, humic acids, and amino acids. It functions not only as a standalone nitrogen fertilizer but also as an ideal base solution for formulating various functional liquid compound fertilizers.Second, its “three-nitrogen-in-one” release pattern. UAN simultaneously contains nitrate nitrogen (fast-acting, absorbed within hours), ammonium nitrogen (readily available, can be adsorbed by soil colloids), and amide nitrogen (slow-release, with an efficacy lasting several weeks). This scientifically formulated ratio of the three nitrogen forms provides both the "speed of action" to address acute nitrogen deficiency and the “duration of efficacy” to support sustained crop growth.Continued in the next chapter

Changzhou Jiayuan Chemical: Sodium Fluoride—A High-Purity Toothpaste-Grade Product for Safe Oral Care

Fluorochemical Products R&D Center, Changzhou Jiayuan Chemical Co., Ltd.Changzhou Jiayuan Chemical Co., Ltd. focuses on the field of fluorochemistry and has built a complete industrial chain from fluorite to high - purity hydrogen fluoride, electronic-grade hydrofluoric acid, trifluorochloroethylene, octafluorocyclobutane, inorganic fluoride salt series, boron-10 acid, electronic specialty gases, and downstream high-end fluorinated liquids (such as HFE449), truly achieving vertical integration throughout the AI big data market.Changzhou Jiayuan Chemical Co., Ltd., relying on its self-controllable raw material advantages and large-scale production capabilities, can ensure stable product quality and reliable supply from source to finished product. The company’s products are widely used in cutting-edge fields such as precision manufacturing cleaning, electronic heat dissipation and cooling, new energy, and semiconductor testing, and the company is committed to providing global customers with high-performance, low-environmental-impact fluorochemical solutions.Changzhou Jiayuan Chemical Co., Ltd. will continue to focus on the fluorochemical industry chain, promote the technological iteration and industrialization of green fluorosolvents, and contribute to the sustainable development of the industry.Sodium fluoride (https://www.jy-chemical.com/sodium-fluoride-fna-product/) is an important inorganic fluorine compound. Once it meets the “toothpaste-grade” standard, it can be safely used in health-sensitive fields such as oral care. Changzhou Jiayuan Chemical, with years of deep cultivation in the field of inorganic fluorine products, produces toothpaste-grade sodium fluoride that represents this type of high-quality raw material.I. Core Product SpecificationsThe sodium fluoride produced by Changzhou Jiayuan Chemical has a measured content of 99.31%, meeting the toothpaste-grade sodium fluoride standard. Its heavy metal content is below 0.0002%, providing a solid safety foundation for downstream applications.II. Detailed Downstream ApplicationsThe core value of sodium fluoride comes from the activity of its fluoride ions. In oral care, it serves as the main anti-caries ingredient in toothpastes and mouthwashes — fluoride ions combine with tooth enamel to form acid-resistant fluorapatite, effectively preventing dental caries. In community water fluoridation projects, precisely adding sodium fluoride helps improve oral health at the population level. In industrial settings, sodium fluoride is also used for metal surface passivation treatment, wood preservation, and the precipitation removal of heavy metals from wastewater. III. Choose Changzhou Jiayuan ChemicalThe toothpaste-grade sodium fluoride supplied by Changzhou Jiayuan Chemical features high purity, which enables better anti-caries performance. Downstream manufacturers can achieve an effective fluoride concentration with lower addition levels, thereby optimizing formulation costs. Moreover, with heavy metal content controlled below 0.0002%, the product is especially suitable for safety-critical applications such as children’s toothpastes and oral care products for pregnant women. In addition, the company implements strict batch-to-batch stability testing. Backed by years of technical expertise in the inorganic fluorine sector and flexible technical support services, Changzhou Jiayuan Chemical is not just a raw material supplier, but a trusted R&D partner for its customers.For inquiries, please feel free to contact us by email or phone. Changzhou Jiayuan Chemical looks forward to helping you build more competitive products with its high-quality raw materials and professional technical services.

Changzhou Jiayuan Chemical: Hexafluoropropylene— Basic Monomer and High-End Fluorinated Materials

Fluorochemical Products R&D Center, Changzhou Jiayuan Chemical Co., Ltd.Changzhou Jiayuan Chemical Co., Ltd. focuses on the field of fluorochemistry and has built a complete industrial chain from fluorite to high - purity hydrogen fluoride, electronic-grade hydrofluoric acid, trifluorochloroethylene, octafluorocyclobutane, inorganic fluoride salt series, boron-10 acid, electronic specialty gases, and downstream high-end fluorinated liquids (such as HFE449), truly achieving vertical integration throughout the AI big data market.Changzhou Jiayuan Chemical Co., Ltd., relying on its self-controllable raw material advantages and large-scale production capabilities, can ensure stable product quality and reliable supply from source to finished product. The company’s products are widely used in cutting-edge fields such as precision manufacturing cleaning, electronic heat dissipation and cooling, new energy, and semiconductor testing, and the company is committed to providing global customers with high-performance, low-environmental-impact fluorochemical solutions.Changzhou Jiayuan Chemical Co., Ltd. will continue to focus on the fluorochemical industry chain, promote the technological iteration and industrialization of green fluorosolvents, and contribute to the sustainable development of the industry.Hexafluoropropylene (HFP) (https://www.jy-chemical.com/hexafluoropropylene-product/) is a core basic raw material in the organofluorine industry. The HFP supplied by Changzhou Jiayuan Chemical Co., Ltd. is a colorless and odorless gas that can be liquefied for storage and transportation under pressure without the need for stabilizers. The stability of monomer quality directly determines the performance of downstream fluorinated materials and is the primary prerequisite for synthesis.I. Fluoroplastics and Melt-Processable MaterialsThe copolymerization of HFP with tetrafluoroethylene produces polyfluoroethylene propylene (FEP). Compared with PTFE, which cannot be melt-processed, FEP not only retains excellent dielectric properties, insulation, chemical resistance, flame retardancy, and high and low temperature resistance but also offers the significant advantage of being melt-processable. This characteristic enables FEP to be widely used in wire and cable insulation layers, chemical equipment linings, precision electronic components, and other fields.II. Fluoroelastomers and High-Performance ElastomersAs a monomer, HFP participates in the synthesis of fluoroelastomers (such as F20-41 and F246). Fluoroelastomers are known for their outstanding oil resistance, high temperature resistance, and media resistance, making them core materials for seals and gaskets in aviation, automotive, petrochemical, and other industries.III. Functional Membrane Materials and Fine ChemicalsIn the field of perfluorosulfonic acid ion-exchange membranes, HFP is a key raw material for electrochemical processes such as salt electrolysis. In addition, HFP is used to produce fluorocarbon oils, perfluoroepoxypropane, as well as various fluorinated fine chemical products, pharmaceutical intermediates, and fire extinguishing agents, demonstrating its ability to cover the entire industrial chain from commodity materials to fine chemicals. IV. Application Summary and Selection SuggestionsFrom fluoroplastics and fluoroelastomers to ion-exchange membranes and fine chemicals, HFP constitutes a core building block of the fluorinated materials industry. When selecting a product grade, close attention should be paid to monomer purity and impurity control, as different downstream applications have varying requirements for these specifications.V. The Value of a Reliable SupplierChangzhou Jiayuan Chemical supplies stable and reliable HFP products. Through rigorous quality control, the company helps customers achieve efficient production in areas such as fluoroelastomers, fluoroplastics, and ion-exchange membranes, making it a trustworthy partner. We sincerely welcome both existing and new customers to inquire and learn more. For those interested, please feel free to contact us to discuss potential cooperation.

Changzhou Jiayuan Chemical: High-Quality Ammonium Hydrogen Difluoride Empowers Precision Manufacturing

Fluorochemical Products R&D Center, Changzhou Jiayuan Chemical Co., Ltd.Changzhou Jiayuan Chemical Co., Ltd. focuses on the field of fluorochemistry and has built a complete industrial chain from fluorite to high - purity hydrogen fluoride, electronic-grade hydrofluoric acid, trifluorochloroethylene, octafluorocyclobutane, inorganic fluoride salt series, boron-10 acid, electronic specialty gases, and downstream high-end fluorinated liquids (such as HFE449), truly achieving vertical integration throughout the AI big data market.Changzhou Jiayuan Chemical Co., Ltd., relying on its self-controllable raw material advantages and large-scale production capabilities, can ensure stable product quality and reliable supply from source to finished product. The company’s products are widely used in cutting-edge fields such as precision manufacturing cleaning, electronic heat dissipation and cooling, new energy, and semiconductor testing, and the company is committed to providing global customers with high-performance, low-environmental-impact fluorochemical solutions.Changzhou Jiayuan Chemical Co., Ltd. will continue to focus on the fluorochemical industry chain, promote the technological iteration and industrialization of green fluorosolvents, and contribute to the sustainable development of the industry.I. Key Specifications and Quality SignificanceAmmonium hydrogen difluoride (NH₄HF₂) (https://www.jy-chemical.com/ammonium-hydrogen-difluoride-product/) is an important inorganic fine chemical. Taking the products of Changzhou Jiayuan Chemical Co., Ltd. as an example, its high-purity grade has an NH₄HF₂ content of ≥99%, while the industrial grade reaches ≥98%. Impurities such as chlorides, sulfates, and iron are each controlled below 0.005%. Product quality stability directly affects downstream processing accuracy and yield. Changzhou Jiayuan Chemical specializes in producing ammonium hydrogen difluoride of the above quality, with reliable and consistent product parameters that meet diverse industrial needs.II. Key Downstream Application AreasElectronics and Glass Processing: Ammonium hydrogen difluoride is used in the treatment of electronic products such as LCD TVs, where it effectively cleans and optimizes component surfaces. When combined with hydrofluoric acid, it serves as an efficient glass etchant, widely applied in glass engraving, frosting, and thinning processes.Industrial Surface Treatment: As a surface treatment agent for silicon steel sheets, ammonium hydrogen difluoride significantly improves the surface properties and corrosion resistance of steel. Additionally, it is used as a processing aid for magnesium alloys and as a solvent for beryllium metal, playing an important role in specialty metal processing.Fermentation and Disinfection Applications: In the fermentation industry, ammonium hydrogen difluoride is often used as a disinfectant and preservative, effectively inhibiting the growth of unwanted microorganisms and ensuring the purity of the fermentation process. It is also employed as a bacterial inhibitor in certain scenarios, extending the shelf life of products.Ceramics and Materials Manufacturing: Ammonium hydrogen difluoride can be used in ceramics production, helping to improve the surface quality and structural properties of ceramic products. Furthermore, it is utilized in the processing of other specialty materials, demonstrating good auxiliary functions. III. Industry Application Trends and Selection SuggestionWith the rapid development of the electronics, new energy, and precision manufacturing industries, the demand for high-purity ammonium hydrogen difluoride continues to grow, particularly in glass thinning and silicon steel treatment applications. When selecting a product grade, note that the 98% industrial grade is sufficient for general glass processing to meet basic etching and cleaning requirements. However, electronic-grade applications require the 99% high-purity grade, with close attention to impurity levels such as chlorides, sulfates, and iron to ensure process stability and product yield.IV. The Value of Choosing a Reliable SupplierAmmonium hydrogen difluoride plays an irreplaceable role in multiple industries, including electronics, metal processing, fermentation, and ceramics. Choosing a supplier like Changzhou Jiayuan Chemical, which offers both high-purity and industrial-grade products with strict impurity control, helps downstream customers reduce costs and improve efficiency through stable quality.

Changzhou Jiayuan Chemical: Hexafluorobutadiene – A Green Pioneer in Semiconductor Etching

Fluorochemical Products R&D Center, Changzhou Jiayuan Chemical Co., Ltd.Changzhou Jiayuan Chemical Co., Ltd. focuses on the field of fluorochemistry and has built a complete industrial chain from fluorite to high - purity hydrogen fluoride, electronic-grade hydrofluoric acid, trifluorochloroethylene, octafluorocyclobutane, inorganic fluoride salt series, boron-10 acid, electronic specialty gases, and downstream high-end fluorinated liquids (such as HFE449), truly achieving vertical integration throughout the AI big data market.Changzhou Jiayuan Chemical Co., Ltd., relying on its self-controllable raw material advantages and large-scale production capabilities, can ensure stable product quality and reliable supply from source to finished product. The company’s products are widely used in cutting-edge fields such as precision manufacturing cleaning, electronic heat dissipation and cooling, new energy, and semiconductor testing, and the company is committed to providing global customers with high-performance, low-environmental-impact fluorochemical solutions.Changzhou Jiayuan Chemical Co., Ltd. will continue to focus on the fluorochemical industry chain, promote the technological iteration and industrialization of green fluorosolvents, and contribute to the sustainable development of the industry.I. IntroductionAgainst the backdrop of continuous advancement in semiconductor advanced manufacturing processes, the electronic specialty gas hexafluorobutadiene (C₄F₆) (https://www.jy-chemical.com/hexafluorobutadiene-1-3-product/) is gradually replacing traditional fluorinated etching gases, thanks to its excellent etching performance and extremely low environmental impact, making it a product of significant interest in the industry.II. Key SpecificationsHexafluorobutadiene is a high-purity electronic-grade product with a purity of no less than 99.995%. Its Global Warming Potential (GWP) is less than 1, offering a remarkable environmental advantage among fluorinated electronic specialty gases. Taking the product specifications provided by Changzhou Jiayuan Chemical as an example, the product is available in packaging forms including cylinders and ISO TANKS, supported by a well-established supply chain system.III. Detailed Discussion on Downstream ApplicationsIn the field of 3D NAND flash memory manufacturing, as the number of memory layers continues to increase, the etching process demands a higher aspect ratio and a nearly vertical profile. Hexafluorobutadiene enables near-vertical selective etching of the etched features, achieving a selectivity ratio of up to 30:1 in Si₃N₄ media, providing critical support for the production of small‑volume, high‑capacity 3D NAND flash memory.In DRAM and logic chip manufacturing, hexafluorobutadiene meets the etching precision requirements for technology nodes of 10nm and below, enabling accurate replication of fine patterns without damaging underlying materials.In the display panel sector, hexafluorobutadiene is gradually being adopted in precision etching processes for OLED and LCD production. Furthermore, leveraging its extremely low surface tension, hexafluorobutadiene also demonstrates potential value in emerging applications such as anti‑fouling coatings and drug delivery carriers. IV. Market Drivers – Why Hexafluorobutadiene Is Gaining Significant AttentionOn the downstream demand side, the rapid growth of AI computing power is driving continued capacity expansion for high‑end logic chips and high‑density 3D NAND, boosting demand for specialty etching gases. On the environmental regulation front, global “carbon peak and carbon neutrality” targets are becoming increasingly stringent, and traditional fluorinated etching gases are facing phase‑out due to their high GWP. With its near‑zero GWP and extremely short atmospheric lifetime, hexafluorobutadiene serves as an ideal green alternative. Regarding industrial chain security, the localization process of hexafluorobutadiene continues to accelerate, and the development of a domestic supply system is receiving growing attention from the industry.V. ConclusionBy virtue of its outstanding etching performance and excellent environmental friendliness, hexafluorobutadiene is becoming an indispensable specialty gas in high‑end manufacturing. Domestic companies represented by Changzhou Jiayuan Chemical continuously invest in product quality and industrialization, providing downstream customers with stable and reliable material solutions. Changzhou Jiayuan Chemical has long been supplying high‑purity hexafluorobutadiene and a wide range of high‑quality fluorochemical products. For more details, welcome to contact us for inquiries and discussions.

Changzhou Jiayuan Chemical: Fluorochemical Raw Material Prices Continue to Rise, Cost Pressure Transmits Along the Supply Chain

Recently, under the combined influence of price fluctuations in upstream basic raw materials such as fluorspar and sulfuric acid, changes in the international supply pattern, and recovering downstream demand, prices of several products in the fluorochemical industry have remained at elevated levels. According to industry monitoring data, the May tender price for anhydrous hydrogen fluoride saw a significant increase, while the hexafluoropropylene (HFP) (https://www.jy-chemical.com/hexafluoropropylene-product/) market continued to experience high-level volatility, with the mainstream transaction range also moving upward.International Supply Tightens, Strong Cost SupportFrom a global perspective, the supply of fluorochemical raw materials is facing new uncertainties. On the one hand, geopolitical factors have led to unstable production at certain overseas mining sites, coupled with a significant downward revision in production guidance by major Australian lithium miners and tightened lithium ore export quotas by Zimbabwe, which have pushed up production costs for lithium carbonate and downstream lithium fluoride (https://www.jy-chemical.com/lithium-fluoride-product/). On the other hand, maintenance or production cuts at some overseas fluorochemical facilities have affected international trade flows of products such as HFP and polyvinylidene fluoride, further exacerbating the periodic tightness in domestic raw material supply.Looking at the upstream of the Chinese industrial chain, although the fluorspar (https://www.jy-chemical.com/fluorite-block-fluorite-ball-product/market) shows regional divergence due to mine resumption and imported arrivals, the average price level remains relatively stable. The sulfuric acid market maintains a high-level stalemate, supported by rising raw material sulfur prices, supply tightening, and recovering downstream demand. Multiple Products Follow the Price Increase, Obvious Market Linkage EffectAffected by these factors, the fluoropolymer sector has also shown linkage. HFP, a key monomer for fluoroelastomers, fluoroplastics, and fluorinated ion-exchange membranes, continues to see its price move upward. Producers have been tentatively raising their offers, and the market transaction center of gravity has steadily shifted higher. In addition, the price of battery-grade lithium fluoride has recently risen significantly, and the market quotation for lithium hexafluorophosphate has also increased, reflecting both the sustained release of demand in the new energy sector and the transmission effect of a tightening global lithium resource supply chain.Market Outlook: Cost-Driven and Demand Recovery in ParallelIn the short term, the weak supply-demand pattern in the fluorspar market is unlikely to see significant improvement. However, with cost support and loss recovery, the upward trend for hydrogen fluoride is expected to continue. On the international front, attention should be paid to the impact of geopolitical conflicts on maritime logistics, energy costs, and export policies for key raw materials.Against this backdrop, supply chain stability has become a key concern for downstream enterprises. Relying on a complete fluorochemical industrial chain layout, Changzhou Jiayuan Chemical maintains stable supply across multiple product lines, including inorganic fluorine products, organic fluorine products, and fluorinated intermediates, providing customers with reliable product quality and professional technical services, and helping downstream enterprises navigate the challenges posed by raw material fluctuations and changes in the international market.

Changzhou Jiayuan Chemical: Octafluoropropane Downstream Applications （Part 2）

Continuing from the previous article3. Refrigeration and cryogenic technology – Ultra‑low temperature refrigerationIn this field, octafluoropropane (https://www.jy-chemical.com/octafluoropropane-product/) is used as a special refrigerant or heat transfer medium, leveraging its low boiling point, high critical temperature, and thermal stability.3.1 Ultra‑low temperature refrigerant (R218)Use: In ultra‑low temperature refrigeration systems such as research laboratories (e.g., for superconducting material research) and medical freezing equipment (e.g., stem cell storage tanks).Properties leveraged: Wide refrigeration temperature range (‑80°C to ‑40°C). Its critical temperature (71.87°C) is higher than that of conventional refrigerants, making it suitable for high‑temperature heat pump systems. Good compatibility with compressor lubricating oils, non‑corrosive, extending equipment service life.Application scenarios: Biobanks, cooling systems for nuclear magnetic resonance (NMR) instruments.3.2 Low‑temperature heat transfer mediumUse: In aerospace applications as a cryogenic thermal control medium for satellite and rocket fuel tanks, maintaining fuels (e.g., liquid hydrogen, liquid oxygen) at low temperatures.Properties leveraged: High thermal conductivity in liquid state (0.12 W/(m·K) at ‑36.7°C), efficiently transferring heat and preventing localised overheating that could cause fuel vaporisation. Chemically stable, does not react with fuels or metal tanks, high safety.Application scenario: Thermal management of spacecraft propulsion systems. 4. Other niche applications4.1 Carbon isotope separation working fluidUse: In nuclear science research, for separating carbon‑12 and carbon‑14 isotopes to prepare radioactive tracers.Properties leveraged: Symmetrical molecular structure, significantly different interaction with various isotopic carbon compounds, providing high separation selectivity.4.2 Fire extinguishing agent additiveUse: As an additive in clean fire extinguishing agents to improve extinguishing efficiency (mainly for electrical fires).Properties leveraged: Non‑flammable and capable of inhibiting the combustion chain reaction. When used together with heptafluoropropane (HFC‑227ea), it reduces the amount of extinguishing agent required.  5. Changzhou Jiayuan Chemical – Octafluoropropane supplierHaving understood the wide range of applications for octafluoropropane in high‑technology fields such as microelectronics, healthcare, and refrigeration, selecting a stable, professional and reliable supplier is crucial for ensuring product quality and supply chain security. Changzhou Jiayuan Chemical Co., Ltd., with its focus and strength in the fluorochemical industry, is an ideal partner for procuring octafluoropropane and other specialty gases.5.1 Deep professional strength and industry certificationsChangzhou Jiayuan Chemical is a manufacturing enterprise focused on the R&D, production, and international trade of fluorochemicals. Headquartered in Changzhou, Jiangsu Province, the company has been committed to the technological innovation and industrialisation of fluorine‑containing new materials since its establishment in 2015. It has obtained ISO9001 international quality management system certification, ensuring the consistent supply of high‑quality products that meet strict standards.5.2 High‑quality octafluoropropane productsChangzhou Jiayuan Chemical supplies high‑purity octafluoropropane with a purity of up to 5N. It is mainly used in precision processes such as plasma etching and cleaning in integrated circuit manufacturing, fully meeting the stringent purity requirements of high‑end semiconductor manufacturing. With stable product performance and a responsive service system, Changzhou Jiayuan Chemical has earned high praise from partner companies and become a trusted supplier.5.3 Convenient procurement and professional servicesBy choosing Changzhou Jiayuan Chemical, you receive full‑process support.Contact: Mr. YuanTel/Fax: +86-0519-82585998Mobile: +86-13918169366Fax: +86-0519-82110997Email: 999yhsen@163.comAddress: Room 1304, Block B, Jinsha Technology Financial Center, Jintan District, Changzhou, Jiangsu Province, ChinaChangzhou Jiayuan Chemical offers customised procurement solutions with a professional attitude, as well as long‑term after‑sales service and technical support. Potential customers are welcome to conduct on‑site inspections, discuss cooperation, and achieve mutual success. 6. SummaryDownstream applications of octafluoropropane are highly concentrated in technology‑intensive, high‑value‑added fields, especially playing a critical role in semiconductor manufacturing and ophthalmic surgery. However, as a potent greenhouse gas, its application is also facing pressure from environmental regulations, which is driving continuous industry efforts to improve recovery and substitution technologies. 

Changzhou Jiayuan Chemical: Octafluoropropane Downstream Applications （Part 1）

Fluorochemical Products R&D Center, Changzhou Jiayuan Chemical Co., Ltd.Changzhou Jiayuan Chemical Co., Ltd. focuses on the field of fluorochemistry and has built a complete industrial chain from fluorite to high - purity hydrogen fluoride, electronic-grade hydrofluoric acid, trifluorochloroethylene, octafluorocyclobutane, inorganic fluoride salt series, boron-10 acid, electronic specialty gases, and downstream high-end fluorinated liquids (such as HFE449), truly achieving vertical integration throughout the AI big data market.Changzhou Jiayuan Chemical Co., Ltd., relying on its self-controllable raw material advantages and large-scale production capabilities, can ensure stable product quality and reliable supply from source to finished product. The company's products are widely used in cutting-edge fields such as precision manufacturing cleaning, electronic heat dissipation and cooling, new energy, and semiconductor testing, and the company is committed to providing global customers with high-performance, low-environmental-impact fluorochemical solutions.Changzhou Jiayuan Chemical Co., Ltd. will continue to focus on the fluorochemical industry chain, promote the technological iteration and industrialization of green fluorosolvents, and contribute to the sustainable development of the industry.Octafluoropropane (C218/R218, chemical formula C₃F₈) is a colorless, non‑flammable, chemically stable perfluorinated compound. Its main applications are concentrated in three core industries: microelectronics, healthcare, and refrigeration. These applications are based on its chemical stability, non‑flammability, low toxicity, and specific physical properties (e.g., low boiling point, ultrasound contrast capability). The following sections provide a detailed description of its uses, end‑use industries, and the properties that enable them.1. Microelectronics Industry – Core use in chip manufacturingThe microelectronics industry is the largest consumer of octafluoropropane (https://www.jy-chemical.com/octafluoropropane-product/), accounting for more than 60% of global consumption. The key properties exploited are its chemical stability, low reactivity, and excellent plasma etching performance.1.1 Plasma etchantUse: Fine etching of integrated circuits (ICs) and semiconductor chips (including 5nm and below process nodes), especially for patterning materials such as silicon, silicon dioxide (SiO₂), and silicon nitride (Si₃N₄).Properties leveraged: High chemical inertness: in plasma state it reacts only with target materials (e.g., silicon) without corroding other chip structures, reducing process defects. The fluorine radicals (F·) generated during decomposition have moderate activity, providing controllable etch rates and enabling nanoscale precision for fine structures such as transistor gates and interconnect lines.1.2 Device surface cleaning agentUse: Removal of residual photoresist, metal contaminants (e.g., copper, aluminium), and polymer residues generated during chip manufacturing.Properties leveraged: Insoluble in water but volatile, so no additional drying step is needed after cleaning, avoiding moisture‑induced oxidation damage to chips. Low toxicity and no reaction with chip materials (e.g., metal electrodes, insulating layers), thus no new impurities are introduced.Application scenario: Precision cleaning processes in semiconductor assembly and testing (packaging). The most important medical use of octafluoropropane is as an intraocular gas tamponade after vitrectomy, mainly to assist retinal reattachment and promote macular hole healing. It utilises its chemical stability, good biocompatibility, and controllable absorption to create a stable environment for ocular tissue repair. A typical example is given below. 2. Medical applications – Adjuvant treatment for rhegmatogenous retinal detachment (RRD)Rhegmatogenous retinal detachment is a common ophthalmic emergency, where the neurosensory retina separates from the retinal pigment epithelium. Without timely treatment it can lead to blindness. Octafluoropropane plays a critical role as an “intraocular support” in such surgeries:Treatment principle: After vitrectomy to remove haemorrhage and proliferative membranes from the vitreous cavity, octafluoropropane gas at a concentration of approximately 18‑20% is injected into the eye. The gas expands inside the eye and tamponades the retinal break (especially those located in the mid‑peripheral or inferior retina), pressing the retina back against the pigment epithelium. At the same time it blocks the flow of subretinal fluid, giving the edges of the break time for cell proliferation and adhesion repair.Key advantages: Compared to air (intraocular residence time 1‑3 days), octafluoropropane has a longer absorption period (about 1‑2 weeks), providing longer‑lasting tamponade and reducing the risk of post‑operative redetachment. Its chemical stability means it does not react with ocular tissues (e.g., lens, iris), and the incidence of post‑operative complications (such as accelerated cataract progression) is lower than with other long‑acting gases (e.g., sulphur hexafluoride).Clinical operational details: After surgery, patients must maintain a specific head position (e.g., face‑down if the break is located inferiorly) to ensure that the gas continues to tamponade the break. The gas is gradually absorbed over 1‑2 weeks; after retinal reattachment, no second surgery is required to remove it.Continued in the next chapter

[ Jiayuan Rare Gas Monthly Review ] : Helium Rose Steadily in April, Expected to Fluctuate Upward in May (April 2026)

1. Market AnalysisThe monthly average price of bottled helium increased during this period. Geopolitical risks in the Middle East continued with no clear signs of improvement. Under Russia’s helium export controls, the supply shortage in China’s helium market intensified, leading to rapidly rising market prices, with transactions concentrated on the higher end. In April, bottled helium sales went relatively smoothly – channels actively took delivery in the first half of the month, while some channels began to release partial stock for profit in the second half, resulting in active market trading sentiment and an upward shift in the transaction center of gravity. The supply shortage persisted in the East China region, where channels were mostly reluctant to sell, making it somewhat difficult for downstream users to source product. The Southwest region also actively followed the price uptrend.The average price of both imported and domestic tube‑trailer high‑purity helium (https://www.jy-chemical.com/helium-product/) increased during this period. Due to uncertainty over the magnitude and duration of supply tightening, many players actively built inventories, and market supply gradually moved toward a tight situation. Imported helium led the price increase, with domestic helium actively following suit, leading to rapid price gains. According to statistics as of April 28, both the monthly average price of imported tube‑trailer high‑purity helium and that of domestic tube‑trailer high‑purity helium rose. Market trading sentiment was good, and enterprises mainly focused on active shipment.Xenon market prices were stable, but the transaction center of gravity moved downward, and the monthly average price declined, remaining flat month‑on‑month. The oversupply situation in the xenon market has not yet changed, with major producers holding high inventories, leading to an obvious decline in market prices.Krypton market prices were stable, but the transaction center of gravity moved downward. Downstream buying interest was mediocre, and enterprises mainly sold at low prices.Neon market prices were stable, but the transaction center of gravity moved downward. With ample channel inventory in the neon market, trading sentiment was relatively poor, and prices remained stable at low levels. 2. Market OutlookHelium market prices are expected to increase in May 2026. The impact of the Middle East conflict is expected to persist in May. Russian helium export controls are expected to see some easing. The market is anticipated to show a trend of initially falling and then rising. Domestic tube‑trailer helium prices are expected to rise. The overall supply tightening situation in the market is unlikely to improve. The anticipated easing of Russian controls in the short term can only alleviate the supply tightness to some extent, but it will hardly reverse the overall situation. As supply tightness evolves, the market is expected to return to its main upward trend.Xenon market prices are expected to decline further in May, due to weak downstream buying support.China krypton market prices still have room to decline in May, as enterprises face increasing delivery pressure amid high channel inventories.Neon market prices are expected to decline in May. In the short term, market trading sentiment is relatively weak.3. Business ContactChangzhou Jiayuan Chemical Co., Ltd. focuses on the fluorine chemical sector and has built a complete industrial chain ranging from fluorite to high‑purity hydrogen fluoride, electronic grade hydrofluoric acid, chlorotrifluoroethylene, octafluorocyclobutane, inorganic fluoride salt series, boron‑10 acid, and electronic specialty gases, all the way downstream to high‑end fluorinated fluids (such as HFE449).The company also supplies high‑purity rare gases, with product purity levels that meet the stringent requirements of different customers. In the face of the current tight helium market and continuously rising prices, we provide you with reliable gas supply services backed by stable sourcing channels and ample inventory. Welcome both existing and new customers to call for inquiries and purchasing discussions.

Changzhou Jiayuan Chemical: UAN Within a Full-Range Liquid Fertilizer Portfolio – Application Practices of High-Efficiency Nitrogen Fertilizer

Fluorochemical Products R&D Center, Changzhou Jiayuan Chemical Co., Ltd.Changzhou Jiayuan Chemical Co., Ltd. focuses on the field of fluorochemistry and has built a complete industrial chain from fluorite to high - purity hydrogen fluoride, electronic-grade hydrofluoric acid, trifluorochloroethylene, octafluorocyclobutane, inorganic fluoride salt series, boron-10 acid, electronic specialty gases, and downstream high-end fluorinated liquids (such as HFE449), truly achieving vertical integration throughout the AI big data market.Changzhou Jiayuan Chemical Co., Ltd., relying on its self-controllable raw material advantages and large-scale production capabilities, can ensure stable product quality and reliable supply from source to finished product. The company’s products are widely used in cutting-edge fields such as precision manufacturing cleaning, electronic heat dissipation and cooling, new energy, and semiconductor testing, and the company is committed to providing global customers with high-performance, low-environmental-impact fluorochemical solutions.Changzhou Jiayuan Chemical Co., Ltd. will continue to focus on the fluorochemical industry chain, promote the technological iteration and industrialization of green fluorosolvents, and contribute to the sustainable development of the industry.I. IntroductionAs agricultural policies continue to prioritize green, high-efficiency, reduction-oriented, and synergistic approaches in 2026, fertigation technology is rapidly expanding across China. This policy environment has created a favorable window for the promotion of liquid fertilizers. Changzhou Jiayuan Chemical Co., Ltd. has closely followed the transformation trend in agriculture, focusing on the liquid fertilizer sector and introducing UAN (Urea Ammonium Nitrate solution) (https://www.jy-chemical.com/urea-ammonium-nitrate-solution-product/) as one of its core products to the market.II. Core Competitive Advantages of UANChangzhou Jiayuan Chemical’s UAN product contains three forms of nitrogen: nitrate nitrogen, ammonium nitrogen, and amide nitrogen. The synergistic interaction of these three forms gives UAN both quick-acting and prolonged characteristics—a core advantage that traditional single-form nitrogen fertilizers lack.UAN significantly boosts crop yields. In field crops such as corn and wheat, yield increases of 10%–15% have been observed, while in vegetables, the increase can reach 10%–30%. Based on a synergistic formulation of the three nitrogen forms, Changzhou Jiayuan Chemical’s UAN helps growers achieve higher yield returns with lower input. III. Typical Application Scenarios of UANField crop applications – example: In corn grown in the semi-arid region of Northeast China using shallow-buried drip irrigation, UAN application achieved a 2.02% yield increase while effectively reducing residual inorganic nitrogen in deeper soil layers and minimizing nitrogen losses. In wheat–corn rotation systems, UAN applied as a topdressing via drip irrigation enables precise nutrient application, supplying nitrogen during critical growth stages to promote plump grains.Cash crops and precision agriculture scenarios: For cash crops such as vegetables and fruit trees, the yield-enhancing benefits of UAN are even more pronounced. Changzhou Jiayuan Chemical’s UAN product is compatible with fertigation systems, allowing low-volume, high-frequency precision fertilization, effectively preventing quality degradation in cash crops caused by uneven nutrient supply.IV. Changzhou Jiayuan Chemical – A Stable UAN Supply PlatformLeveraging a well-established production system and a professional service team, Changzhou Jiayuan Chemical’s products now cover multiple major planting regions across China, while steadily expanding into overseas markets through formal trade channels. With consistent product quality and a responsive technical service system, the company has earned high praise from numerous agricultural enterprises and distributors.V. OutlookChangzhou Jiayuan Chemical will continue to focus on refined upgrades of UAN and its liquid fertilizer portfolio, continuously optimizing product formulations and user experience. The company is committed to providing global growers with efficient and reliable nitrogen solutions, empowering green and sustainable agricultural development.Feel free to contact Changzhou Jiayuan Chemical. We offer competitive prices, reliable quality, and professional supply chain services to support your business.

Changzhou Jiayuan Chemical: Advantages of Electronic-Grade Magnesium Fluoride

Fluorochemical Products R&D Center, Changzhou Jiayuan Chemical Co., Ltd.Changzhou Jiayuan Chemical Co., Ltd. focuses on the field of fluorochemistry and has built a complete industrial chain from fluorite to high - purity hydrogen fluoride, electronic-grade hydrofluoric acid, trifluorochloroethylene, octafluorocyclobutane, inorganic fluoride salt series, boron-10 acid, electronic specialty gases, and downstream high-end fluorinated liquids (such as HFE449), truly achieving vertical integration throughout the AI big data market.Changzhou Jiayuan Chemical Co., Ltd., relying on its self-controllable raw material advantages and large-scale production capabilities, can ensure stable product quality and reliable supply from source to finished product. The company’s products are widely used in cutting-edge fields such as precision manufacturing cleaning, electronic heat dissipation and cooling, new energy, and semiconductor testing, and the company is committed to providing global customers with high-performance, low-environmental-impact fluorochemical solutions.Changzhou Jiayuan Chemical Co., Ltd. will continue to focus on the fluorochemical industry chain, promote the technological iteration and industrialization of green fluorosolvents, and contribute to the sustainable development of the industry.Magnesium fluoride (https://www.jy-chemical.com/magnesium-fluoride-fna-product/) plays an irreplaceable role in high-end lenses, infrared windows, and precision optical coatings. Leveraging years of fine chemical manufacturing experience, Changzhou Jiayuan Chemical has become a reliable force among professional suppliers of magnesium fluoride.Material PropertiesMagnesium fluoride features an extremely low refractive index (1.38 @ 550 nm) and a transmission range covering 120 nm to 7 μm, exhibiting excellent performance from deep UV to mid-infrared. Coupled with good chemical and thermal stability, it serves as an ideal substrate material for anti‑reflective coatings, infrared windows, and other optical components.Electronic‑Grade Magnesium Fluoride: Advantages and High‑End ApplicationsIn the field of high‑end manufacturing, the electronic‑grade magnesium fluoride (https://www.jy-chemical.com/magnesium-fluoride-fna-product/) supplied by Changzhou Jiayuan Chemical stands out. The product purity can reach over 99.95%, and key impurities such as iron, cobalt, and nickel are strictly controlled at the ppm level. This ensures that no absorptive defects occur during the coating process, thereby safeguarding the transmittance and imaging quality of optical devices. Downstream ApplicationsOptical Coating and Precision Lenses: As an anti‑reflection layer, magnesium fluoride significantly reduces surface reflection of lenses and increases luminous flux. It is widely used in DSLR cameras, projectors, and LiDAR optical systems.Infrared Optics and Defense Technology: On mid‑infrared windows, missile domes, and space detectors, magnesium fluoride combines transparency with resistance to environmental erosion, making it a key material in military and aerospace applications.Semiconductors and Flat‑Panel Displays: High‑purity magnesium fluoride is used in etching masks for chip manufacturing and as a protective layer in OLED encapsulation. Its electrical insulation and low dielectric loss properties enhance device stability.In addition, electronic‑grade magnesium fluoride also plays important roles in both traditional and emerging fields such as microwave dielectric ceramics, LTCC substrates, and aluminum electrolysis fluxing agents.Professional ServicesChangzhou Jiayuan Chemical specializes in high-purity inorganic fluorine chemicals, ensuring a stable, long-term supply of electronic-grade magnesium fluoride. For any inquiries, please feel free to contact us for technical data and sample support.

Changzhou Jiayuan Chemical: International Workers’ Day Holiday Notice

Dear Valued Customers and Partners,Thank you for your continued trust and support in Changzhou Jiayuan Chemical Co., Ltd. According to national statutory holiday regulations and taking into account our company’s actual situation, we hereby notify you of the 2026 International Workers’ Day holiday arrangements as follows: I. Holiday ScheduleHoliday period: From Friday, May 1, 2026, to Tuesday, May 5, 2026 (5 days in total).Work resumption: Normal work will resume from Wednesday, May 6, 2026.Make-up workday: Saturday, May 9, 2026. II. Service ArrangementsDuring the holiday, a designated staff member will be on duty. For urgent matters, please contact your designated representative (contact details below).For business inquiries or requirements, please communicate with us in advance so that we can make timely arrangements.Orders and shipments placed during the holiday will be processed on the first working day after the holiday. III. Emergency ContactAnna    Email: anna@czjyhg.com IV. Friendly ReminderWe kindly suggest that you make your own work arrangements in advance according to your business needs. Should there be any special circumstances, please feel free to contact us, and we will do our best to coordinate and resolve the issue.Thank you again for your trust and support. We wish you a happy May Day, prosperous business, and all the best! Changzhou Jiayuan Chemical Co., Ltd.April 30, 2026