CAS number : 7783-28-0
Molecular weight :
Molecular formula/chemical symbol :(NH4) 2HPO4
Description :
White crystal or powder. Odorless. With salty cool taste. Placed in the air can be lost 8% of the ammonia. Soluble in water, hot water solubility 1g/1.7ml, cold water solubility1g/0.5ml, insoluble in ethanol and acetone. a pH of about 8. The relative density of 1.619.
Keywords: Phosphate
USES :
Preparation of buffer and media. Corrosion inhibitors. Textiles, paper, wood, vegetables, fiber fireproofing agent. Flux of soldering tin, copper, zinc, etc.. Refined sugar. Chemical fertilizers. The bread-improving agent. Food additive. This product should be sealed in a cool dry place.
Report :
Quality standards HG 3-1063-77（84）
|
Item |
Analytical grade |
Chemically pure |
|
Content of not less than |
99.5% |
98.0% |
|
Aqueous reaction |
Qualified |
Qualified |
|
Max impurities,%: |
|
|
|
Clarity Test |
Qualified |
Qualified |
|
Water insoluble matter |
0.005 |
0.01 |
|
Chloride (Cl) |
0.0005 |
0.004 |
|
Sulfur compounds (SO4) |
0.005 |
0.01 |
|
Nitrate (NO3) |
0.0005 |
0.001 |
|
Alkali metals (as phosphate) |
0.1 |
0.2 |
|
Fe |
0.0005 |
0.002 |
|
As |
0.0005 |
0.002 |
|
Heavy metals (as Pb) |
0.0005 |
0.001 |
