What do you know about sodium fluoride?-Changzhou Jiayuan

Sodium fluoride is a colorless shiny crystal or white powder compound with a specific gravity of 2.25, a melting point of 993°C and a boiling point of 1695°C. Dissolve in water (solubility of 10°C 3.66,20°C 4.06,30°C 4.22,40°C 4.4,60°C 4.68,80°C 4.89,100°C5.08), hydrofluoric acid, slightly soluble in alcohol. The aqueous solution is weakly alkaline, dissolved in hydrofluoric acid to form sodium hydrogen fluoride, which will corrode the glass.poisonous! It is widely used as phosphating promoter, agricultural insecticide, sealing materials and preservatives in the coating industry.Character: a colorless cubic or tetragonal crystal. Sensitive to water. Solubility in water (g / 100ml): 4 at 15°C, 4.3 at 25°C, 5 at 100°C, insoluble in ethanol. Partial hydrolysis of the aqueous solution is an alkaline reaction. The newly prepared saturated solution had a pH of 7.4. Its aqueous solution can make the glass fluffy, but its dry crystals or powder can be stored in glass bottles. The relative density was 2.78. Melting point of 993℃. The boiling point is 1,695℃. Toxic, LD50 (rat, given orally) 0.18g / kg. There is a strong irritant. Use of sodium fluoride: used as a phosphating promoter in the coating industry to stabilize the phosphating solution, refine phosphating and improve the performance of phosphating membranes. The phosphating treatment of aluminum and its alloy is sealed with Al3 +, which has a very harmful negative catalytic effect, so the phosphorization treatment is very smooth, wood preservative, agricultural insecticide, fungicides for brewing industry, drug preservatives, welding flux, alkaline zinc salt galvanized additive and enamel, paper industry, etc. Sodium fluoride (NAF) is an important fluoride salt used for the manufacture of other fluoride raw materials.1 as used as agricultural pesticides and fungicides.2. As a wood preservative, water treatment agent, ceramic pigment, boiling steel manufacturing, light metal fluoride salt treatment agent, smelting and refining, as a protective layer, as a UF 3 adsorbent in the nuclear industry.3. In the production of sealing materials and brake liners, the wear resistance is added. The mechanical blade planer is inlaid with steel to improve the welding strength.4. Enamel pharmaceutical industry and paper production and building materials.5. Used as a phosphating promoter in the coating industry to stabilize phosphating solutions, refine phosphating and improve the performance of phosphating membranes. Aluminum and its alloys are sealed with AL3 +, which has a very harmful negative catalytic effect, making phosphating smooth, and is an alkaline zincate galvanizing additive. Cleaning fluid, flux and flux for steel and other metals.6. Fux and sunscreen of ceramic glass and enamel, the processing of leather and leather in the leather industry, and the preservatives of adhesives.Is that all about sodium fluoride, do you know it? Jiayuan chemical is a set of fluoride production, processing, research and development and trade in one of the enterprise, for sodium fluoride we have professional people professional technology.

Fluorite powder market morning reminder (20230911)

1. Mainstream marketFluorite powder prices continued to rise last week, and tight supply was the main factor supporting the price increase. The support of cargo holders' sentiment of being reluctant to sell goods also benefits the market to a certain extent. Downstream companies all reported low inventories and there is still support on the demand side.2. Key factors affecting current market price changesDemand: Some downstream companies have low raw material inventories this week, and there is still demand for external mining of fluorite powder. The positive support on the demand side is still there.Supply: The start-up of the dressing plant during the week is expected to have limited fluctuations, and cargo holders have insufficient intention to ship. The tight market supply situation is likely to continue.Downstream prices: The prices of anhydrous hydrofluoric acid and aluminum fluoride are expected to improve this week, and the price of bulk orders is likely to rise, which will provide good support for the price of fluorite powder.3. Trend predictionThe prices of downstream anhydrous hydrofluoric acid and aluminum fluoride are expected to improve this week, and downstream companies are still in need of replenishment of raw materials, so it is difficult to increase supply. It is expected that the price of fluorite powder will still remain high.

Magnesium oxide for magnesium fluoride

Magnesium oxide for magnesium fluoride mainly plays the role of acid absorption and neutralization, and is mainly used for manufacturing ceramics and glass; Cosolvent for metallurgical magnesium metal; Coating of lens and filter in optical instruments; Fluorescent material of cathode ray screen; Welding flux, etc.Use requirements:Generally, the content is ≥ 93%, and calcium is ≤ 1.0%. If high-end magnesium fluoride is made, the content is required to be more than 99%, and calcium is required to be ≤ 0.05%.matters needing attention:The insoluble substances of sulfate and hydrochloric acid cannot be high, and the fineness will be better. Magnesium hydroxide can also be used as raw material due to different magnesium fluoride production process and formula. Magnesium oxide special for magnesium fluoride Magnesium fluoride is colorless crystal or powder, which is an important inorganic chemical raw material. Used as additive for electrolytic aluminum, flux for smelting magnesium, titanium In the production of aluminum, aluminum fluoride is used as an electrolytic bath component to reduce the melting point and improve the conductivity of the electrolyte. Used to inhibit fermentation in alcohol production Magnesium fluoride has a low refractive index and can form a wide band gap with high refractive index materials. It can be used as a low refractive index material in photonic crystals Mix magnesium fluoride powder and high-purity PbF2 powder evenly, load the crucible clamp, put the crucible clamp on the crucible base, install the heating body, and adjust the bottom of the crucibleMagnesium oxide for magnesium fluoride mainly plays the role of acid absorption and neutralization, and is mainly used for manufacturing ceramics and glass; Cosolvent for metallurgical magnesium metal; Coating of lens and filter in optical instruments; Fluorescent material of cathode ray screen; Welding flux, etc.Use requirements:Generally, the content is ≥ 93%, and calcium is ≤ 1.0%. If high-end magnesium fluoride is made, the content is required to be more than 99%, and calcium is required to be ≤ 0.05%.matters needing attention:The insoluble substances of sulfate and hydrochloric acid cannot be high, and the fineness will be better. Magnesium hydroxide can also be used as raw material due to different magnesium fluoride production process and formula.

Application of magnesium fluoride crystal

Magnesium fluoride crystal is used in optical system, and its transmission band is 0.11 μ m-8.5 μ m。 Irradiation will not lead to the generation of color centers. It has good mechanical properties and can withstand thermal and mechanical vibration. Large external forces can make magnesium fluoride cleave. Due to the weak birefringence of magnesium fluoride single crystal, the normal tangential direction is the optical axis perpendicular to the wafer surface.Magnesium fluoride is a widely used crystal with the following characteristics:1. Resistance to impact and thermal fluctuations and irradiation.2. It can be used in optical prism lenses, wedges, windows and related optical systems.3. The performance of tetragonal birefringent crystal can be used for optical communication.4. Good chemical stability.5. Ultraviolet to infrared (0.11-8.5) at pinhole μ m) The band has a high transmittance. Application of magnesium fluoride crystal magnesium fluoride is colorless crystal or powder, and is an important inorganic chemical raw material. Used as additive for electrolytic aluminum, flux for smelting magnesium, titanium In the production of aluminum, aluminum fluoride is used as an electrolytic bath component to reduce the melting point and improve the conductivity of the electrolyte. Used to inhibit fermentation in alcohol production Magnesium fluoride has a low refractive index and can form a wide band gap with high refractive index materials. It can be used as a low refractive index material in photonic crystals Mix magnesium fluoride powder and high-purity PbF2 powder evenly, load the crucible clamp, put the crucible clamp on the crucible base, install the heating body, and adjust the bottom of the crucibleMagnesium fluoride crystal is used in optical system, and its transmission band is 0.11 μ m-8.5 μ m。 Irradiation will not lead to the generation of color centers. It has good mechanical properties and can withstand thermal and mechanical vibration. Large external forces can make magnesium fluoride cleave. Due to the weak birefringence of magnesium fluoride single crystal, the normal tangential direction is the optical axis perpendicular to the wafer surface.Magnesium fluoride is a widely used crystal with the following characteristics:1. Resistance to impact and thermal fluctuations and irradiation.2. It can be used in optical prism lenses, wedges, windows and related optical systems.3. The performance of tetragonal birefringent crystal can be used for optical communication.4. Good chemical stability.5. Ultraviolet to infrared (0.11-8.5) at pinhole μ m) The band has a high transmittance.

What are the main characteristics of magnesium fluoride?

Magnesium fluoride crystal is used in optical system, and its transmission band is 0.11 μ m-8.5 μ m。 Irradiation will not lead to the generation of color centers. It has good mechanical properties and can withstand thermal and mechanical vibration. Large external forces can make magnesium fluoride cleave. Due to the weak birefringence of magnesium fluoride single crystal, the normal tangential direction is the optical axis perpendicular to the wafer surface.Magnesium fluoride is a widely used crystal with the following characteristics:1. It has high transmittance in the pinhole ultraviolet to infrared band.2. Resistance to impact and thermal fluctuations and irradiation.3. Good chemical stability.4. It can be used in optical prism lenses, wedges, windows and related optical systems.5. The performance of tetragonal birefringent crystal can be used for optical communication. What are the main characteristics of magnesium fluoride? As colorless crystal or powder, magnesium fluoride is an important inorganic chemical raw material. Used as additive for electrolytic aluminum, flux for smelting magnesium, titanium In the production of aluminum, aluminum fluoride is used as an electrolytic bath component to reduce the melting point and improve the conductivity of the electrolyte. Used to inhibit fermentation in alcohol production Magnesium fluoride has a low refractive index and can form a wide band gap with high refractive index materials. It can be used as a low refractive index material in photonic crystals Mix magnesium fluoride powder and high-purity PbF2 powder evenly, load the crucible clamp, put the crucible clamp on the crucible base, install the heating body, and adjust the bottom of the crucibleMagnesium fluoride crystal is used in optical system, and its transmission band is 0.11 μ m-8.5 μ m。 Irradiation will not lead to the generation of color centers. It has good mechanical properties and can withstand thermal and mechanical vibration. Large external forces can make magnesium fluoride cleave. Due to the weak birefringence of magnesium fluoride single crystal, the normal tangential direction is the optical axis perpendicular to the wafer surface.Magnesium fluoride is a widely used crystal with the following characteristics:1. It has high transmittance in the pinhole ultraviolet to infrared band.2. Resistance to impact and thermal fluctuations and irradiation.3. Good chemical stability.4. It can be used in optical prism lenses, wedges, windows and related optical systems.5. The performance of tetragonal birefringent crystal can be used for optical communication.

Manufacturing process of magnesium fluoride

Mix magnesium fluoride powder and high-purity PbF2 powder evenly, load the crucible clamp, put the crucible clamp on the crucible base, install the heating body, adjust the bottom of the crucible to make it in the high temperature zone, then install the insulation cover, seal the furnace and vacuum.When the vacuum reaches 10-4 torr, heat at 500w power, dry for 1.5-2h, and then slowly raise the temperature at 1000W/15min. When the power reaches 6700W, keep the constant temperature for 45min, and then drop to 6400W for 45min.At this time, the vacuum degree generally reaches 10-5 torr, and then the crucible is lowered at a speed of 4 mm/h for growth. After the crucible stops lowering, cool it at a rate of 150W/15min to room temperature, and then take out the magnesium fluoride crystal. The manufacturing process of magnesium fluoride is colorless crystal or powder, which is an important inorganic chemical raw material. Used as additive for electrolytic aluminum, flux for smelting magnesium, titanium In the production of aluminum, aluminum fluoride is used as an electrolytic bath component to reduce the melting point and improve the conductivity of the electrolyte. Used to inhibit fermentation in alcohol production Magnesium fluoride has a low refractive index and can form a wide band gap with high refractive index materials. It can be used as a low refractive index material in photonic crystals Mix magnesium fluoride powder and high-purity PbF2 powder evenly, load the crucible clamp, put the crucible clamp on the crucible base, install the heating body, and adjust the bottom of the crucibleMix magnesium fluoride powder and high-purity PbF2 powder evenly, load the crucible clamp, put the crucible clamp on the crucible base, install the heating body, adjust the bottom of the crucible to make it in the high temperature zone, then install the insulation cover, seal the furnace and vacuum.When the vacuum reaches 10-4 torr, heat at 500w power, dry for 1.5-2h, and then slowly raise the temperature at 1000W/15min. When the power reaches 6700W, keep the constant temperature for 45min, and then drop to 6400W for 45min.At this time, the vacuum degree generally reaches 10-5 torr, and then the crucible is lowered at a speed of 4 mm/h for growth. After the crucible stops lowering, cool it at a rate of 150W/15min to room temperature, and then take out the magnesium fluoride crystal.

Magnesium fluoride photonic crystal

Magnesium fluoride has a low refractive index and can form a wide band gap with high refractive index materials. It can be used as a low refractive index material in photonic crystals. For example, MgF2/Ag one-dimensional photonic crystal can effectively adjust the position and central frequency of its passband by changing the film thickness and the number of film cycles, and can be widely used in sensors, goggles, thermal reflective windows, light-emitting diodes and transparent electrodes of liquid crystal displays.Magnesium fluoride has good optical properties and mechanical properties. It is also widely used in narrow band filters and high reflective and antireflective films with excellent performance. Magnesium fluoride photonic crystal Magnesium fluoride is a colorless crystal or powder, which is an important inorganic chemical raw material. Used as additive for electrolytic aluminum, flux for smelting magnesium, titanium In the production of aluminum, aluminum fluoride is used as an electrolytic bath component to reduce the melting point and improve the conductivity of the electrolyte. Used to inhibit fermentation in alcohol production Magnesium fluoride has a low refractive index and can form a wide band gap with high refractive index materials. It can be used as a low refractive index material in photonic crystals Mix magnesium fluoride powder and high-purity PbF2 powder evenly, load the crucible clamp, put the crucible clamp on the crucible base, install the heating body, and adjust the bottom of the crucibleMagnesium fluoride has a low refractive index and can form a wide band gap with high refractive index materials. It can be used as a low refractive index material in photonic crystals. For example, MgF2/Ag one-dimensional photonic crystal can effectively adjust the position and central frequency of its passband by changing the film thickness and the number of film cycles, and can be widely used in sensors, goggles, thermal reflective windows, light-emitting diodes and transparent electrodes of liquid crystal displays.Magnesium fluoride has good optical properties and mechanical properties. It is also widely used in narrow band filters and high reflective and antireflective films with excellent performance.

Use of aluminum fluoride products

In the production of aluminum, aluminum fluoride is used as an electrolytic bath component to reduce the melting point and improve the conductivity of the electrolyte. It is used as an inhibitor of fermentation in the production of alcohol. It is used as a cosolvent for ceramic outer glaze and enamel glaze, and as a solvent for non-ferrous metals.Used for welding fluid in metal welding. Used for manufacturing optical lenses. It is also used as catalyst for organic synthesis and raw material for artificial cryolite. Aluminum fluoride product use Magnesium fluoride is colorless crystal or powder, and is an important inorganic chemical raw material. Used as additive for electrolytic aluminum, flux for smelting magnesium, titanium In the production of aluminum, aluminum fluoride is used as an electrolytic bath component to reduce the melting point and improve the conductivity of the electrolyte. Used to inhibit fermentation in alcohol production Magnesium fluoride has a low refractive index and can form a wide band gap with high refractive index materials. It can be used as a low refractive index material in photonic crystals Mix magnesium fluoride powder and high-purity PbF2 powder evenly, load the crucible clamp, put the crucible clamp on the crucible base, install the heating body, and adjust the bottom of the crucibleIn the production of aluminum, aluminum fluoride is used as an electrolytic bath component to reduce the melting point and improve the conductivity of the electrolyte. It is used as an inhibitor of fermentation in the production of alcohol. It is used as a cosolvent for ceramic outer glaze and enamel glaze, and as a solvent for non-ferrous metals.Used for welding fluid in metal welding. Used for manufacturing optical lenses. It is also used as catalyst for organic synthesis and raw material for artificial cryolite.

Research on properties and development of magnesium fluoride

As colorless crystal or powder, magnesium fluoride is an important inorganic chemical raw material. It is used as additive for electrolytic aluminum, flux for smelting magnesium metal, coating agent for titanium pigment, fluorescent material for cathode ray screen, etc. At the same time, it is also a colorless and transparent infrared optical material with wide transmission range and high transmittance, which can be used to make optical prism, lens and window element in infrared optical system.Due to the different requirements for the quality of magnesium fluoride in various fields, the preparation methods are also different. The raw materials for industrial production of magnesium fluoride mainly come from magnesite and salt lake brine, which are suitable for large-scale industrial production, while the raw materials for the laboratory preparation of high-quality magnesium fluoride come from finished magnesium salt.At present, the research direction of magnesium fluoride preparation mainly includes the following aspects:First, on the basis of ensuring a certain purity of magnesium fluoride, further improve the production process and reduce the production cost;Secondly, the finished magnesium fluoride particles should have better dispersion and more uniform particle size distribution to ensure good optical properties;In addition, some new fields, such as magnesium fluoride nano-antibiotic film and magnesium fluoride nanotubes, have also been gradually developed and utilized. Research on the properties and development of magnesium fluoride magnesium fluoride is colorless crystal or powder, and is an important inorganic chemical raw material. Used as additive for electrolytic aluminum, flux for smelting magnesium, titanium In the production of aluminum, aluminum fluoride is used as an electrolytic bath component to reduce the melting point and improve the conductivity of the electrolyte. Used to inhibit fermentation in alcohol production Magnesium fluoride has a low refractive index and can form a wide band gap with high refractive index materials. It can be used as a low refractive index material in photonic crystals Mix magnesium fluoride powder and high-purity PbF2 powder evenly, load the crucible clamp, put the crucible clamp on the crucible base, install the heating body, and adjust the bottom of the crucibleAs colorless crystal or powder, magnesium fluoride is an important inorganic chemical raw material. It is used as additive for electrolytic aluminum, flux for smelting magnesium metal, coating agent for titanium pigment, fluorescent material for cathode ray screen, etc. At the same time, it is also a colorless and transparent infrared optical material with wide transmission range and high transmittance, which can be used to make optical prism, lens and window element in infrared optical system.Due to the different requirements for the quality of magnesium fluoride in various fields, the preparation methods are also different. The raw materials for industrial production of magnesium fluoride mainly come from magnesite and salt lake brine, which are suitable for large-scale industrial production, while the raw materials for the laboratory preparation of high-quality magnesium fluoride come from finished magnesium salt.At present, the research direction of magnesium fluoride preparation mainly includes the following aspects:First, on the basis of ensuring a certain purity of magnesium fluoride, further improve the production process and reduce the production cost;Secondly, the finished magnesium fluoride particles should have better dispersion and more uniform particle size distribution to ensure good optical properties;In addition, some new fields, such as magnesium fluoride nano-antibiotic film and magnesium fluoride nanotubes, have also been gradually developed and utilized.

Introduction of magnesium oxide in the field of new inorganic magnesium materials

In recent years, the term "inorganic magnesium salt new material" has hit the hot spot several times. The group of inorganic magnesium salt new material mainly includes magnesium oxide, magnesium carbonate, magnesium sulfate, magnesium hydroxide and magnesium product compounds. The enterprises that mainly produce magnesium compounds are distributed in chemical, steel, non-ferrous metals, light industry, food, electronics and other industries.Inorganic magnesium salt compounds include hundreds of products, the most important of which are magnesium oxide, magnesium hydroxide, magnesium carbonate and other major products. These products can be divided into ore, brine process and chemical by-products according to the type of raw material source. The production of magnesium compounds in China has a wide range of raw materials and a variety of process routes. The coexistence of multiple technical routes and product types in the magnesium compound industry has taken shape.The development direction of refined products: magnesium compound products have special characteristics, many varieties and specifications, and the market space for developing refined products is broad. Rubber, ceramics and other industries need industrial light magnesium oxide; Neoprene rubber, fluororubber, adhesives and sealing materials need various kinds of active magnesium oxide; Silicon steel grade magnesium oxide required for steel plate making; The electronic industry, national defense industry and aviation industry need high-purity magnesium oxide; Pharmaceutical grade magnesium oxide required for pharmaceuticals; Reagent-grade magnesium oxide is required for analysis.

Magnesium oxide plays an important role in environmental protection

Magnesium oxide is an inorganic salt material, commonly used as rubber additive and magnesium compound magnesium ion supplement. At the same time, magnesium oxide plays an important role in environmental protection, such as water treatment, gas desulfurization, soil treatment and other related fields. Magnesium oxide plays a certain role in environmental pollution and treatment. The adsorption process of magnesium oxide plays a very important role in the play of these roles. The application of magnesium oxide is widely used in the treatment of waste gas. Magnesium oxide adsorption can effectively adsorb waste gas. It can be handled effectively. And the cost is low.

Early reminder of dichloroethane market (20220324)

Yesterday, the domestic dichloroethane market price was stable and the market transaction atmosphere was general. The arrival of goods at the end of the month is expected to have a certain impact on local market prices. The bulk water supply price in Jiangyin area is around 5200 yuan/ton, and the merchants have less inventory, and have no intention of stocking under the high price recently, so the market is in a high wait-and-see mood.