CAS number : 7722-76-1
Molecular weight :
Molecular formula/chemical symbol :NH4H2PO4
Description :
White crystalline powder. Stable in the air. 1gdissolved in 2.5ml water. Slightly soluble in ethanol, insoluble in acetone. The acidic aqueous solution. The relative density of 1.80. Melting point190 ℃. Refractive index is 1.525.
Keywords: Phosphate
USES :
Buffer and media preparation. Paper, wood, fiberboard, fire retardant. Fertilizer. The bread-improving agent. Food additive. This product should be kept under seal.
Report :
Quality standards HG 3-1064-84
Item |
Analytical grade |
Chemically pure |
Content of not less than |
99.0 |
98.5 |
Aqueous reaction |
Qualified |
Qualified |
Max impurities,%: |
|
|
Clarity Test |
Qualified |
Qualified |
Water insoluble matter |
0.005 |
0.01 |
Chloride (Cl) |
0.0005 |
0.001 |
Nitrate (as NO3) |
0.001 |
0.002 |
Sulfur compounds (SO4) |
0.005 |
0.01 |
Alkali metals (as phosphate) |
0.2 |
0.3 |
Fe |
0.001 |
0.003 |
As |
0.0005 |
0.002 |
Heavy metals (as Pb) |
0.0005 |
0.001 |