Basic Information

Product name : Calcium dihydrogen phosphate

Molecular formula: CaH4O8P2

Chinese aliases : dicalcium phosphate (2:1); dicalcium phosphate, monohydrate; monocalcium phosphate, acid calcium phosphate; dicalcium phosphate monohydrate; dicalcium phosphate monohydrate (85%~95%, BR);calcium dihydrogen pyrophosphate

C AS :7758-23-8

Molecular weight :234.05

EINECS number : 231-837-1

Structural formula :

Brief description

Calcium dihydrogen phosphate, also known as monocalcium phosphate, has the chemical formula Ca(H2PO4)2·H2O. It is a white monoclinic crystalline powder, odorless and tasteless, soluble in dilute hydrochloric acid, nitric acid, acetic acid, slightly soluble in water, and insoluble in ethanol. Relative density 2.32. It is stable in the air. It starts to lose water at 75°C to form anhydrous calcium hydrogen phosphate. At 30°C, 1.8g of calcium dihydrogen phosphate can be dissolved in 100ml of water. The aqueous solution is acidic, and it is hydrolyzed into calcium hydrogen phosphate when heated. It loses crystal water at 109°C and decomposes into calcium metaphosphate at 203°C.

use

Calcium dihydrogen phosphate is used as a buffer, a bulking agent, a flour improver, a nutritional supplement, a yeast food, an emulsifier, a curing agent, an antioxidant synergist, and a stabilizer in the food industry. For example, it is used as a flour, cake, pastry, and baking quality improver, a tribometer, an analytical reagent, an acidifier for baking powder and flour, a food and feed additive, and a plastic stabilizer. Calcium dihydrogen phosphate is used in fertilizers, glass manufacturing, plastic stabilizers, and livestock supplementary feeds. The amount added to feed is generally about 1% to 2%.

Storage conditions

Warehouse ventilation and low temperature drying

Package

1. Plastic woven bags, aluminum foil bags, cardboard barrels;

2. According to customer needs, other forms of packaging

Chemical properties

Colorless triclinic crystals or white crystalline powder. Easily soluble in hydrochloric acid and nitric acid, slightly soluble in cold water, and almost insoluble in ethanol.