Dihydrogen phosphate sodium is hygroscopic in air, losing about 5 molecules of crystalline water when exposed to air at room temperature to form the heptahydrate. Upon heating to 100°C, it loses all crystalline water to become anhydrous, and decomposes into sodium pyrophosphate at 250°C. It is hygroscopic in air, readily losing five molecules of crystalline water to form the heptahydrate (Na2HPO4·7H2O). It is soluble in water but not in alcohol. The aqueous solution shows a slightly alkaline reaction (pH of 0.1-1N solution is about 9.0). It loses crystalline water to become anhydrous at 100°C and decomposes into sodium pyrophosphate at 250°C. The pH of a 1% water solution is 8.8-9.2; it is insoluble in alcohol. Melts and loses five molecules of crystalline water at 35.1°C.

Product Specifications: 25KG per bag

Formula: Na2HPO4

Also Known As: Disodium Phosphate

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Storage Conditions:

Dihydrogen phosphate sodium (Na2HPO4) should be stored in a dry, well-ventilated area, away from direct sunlight. Prevent mixing with reducing agents, and keep it separate from flammable materials, acids, and oxidizers during storage. It is recommended to store at temperatures between 1-30°C, avoiding contact with moisture, insufficient ventilation, and other harmful substances.