Product name |
Ammonium sulfate |
Specification |
Reagent grade |
Molecular formula |
(NH4)2SO4 |
CAS |
7783-20-2 |
H.S. CODE |
3102210000 |
Molecular weight |
132.14 |
Appearance |
Colorless crystal powder |
Package |
25KG Woven bags or fiber drums |
Property:
Colorless crystalline or translucence powder. The relative density 1.769. Hot to 100 ℃ began to decompose into ammonia and acid hydrogen amines. Soluble in water, insoluble in ethanol and acetone.
Application:
Analytics reagents. As the support point electrochemical analysis and solution quality. Also used in the microbiological media, ammonium salt preparation.
Test standard:GB/T 1396-1993
Test items |
Specification |
|
AR grade |
CP grade |
|
Appearance |
Colorless crystal powder |
Colorless crystal powder |
Assay |
≥99.0% |
≥99.0% |
pH |
4.8~6.0 |
4.8~6.0 |
Appearance of solution |
Conform |
Conform |
Water insoluble |
≤0.002% |
≤0.01% |
Residue on ignition |
≤0.01% |
≤0.05% |
Chloride |
≤0.0005% |
≤0.001% |
Nitrate |
≤0.001% |
≤0.005% |
Phosphate |
≤0.0005% |
≤0.002% |
Arsenic |
≤0.00002% |
≤0.0002% |
Calcium |
≤0.005% |
- |
Iron |
≤0.0002% |
≤0.0005% |
Heavy metals |
≤0.0005% |
≤0.002% |
Storage:
Store in a cool, dry and well ventilated place. Keep away from incompatible substances. Keep container closed.