Ammonium sulfate
- Số CAS
- 7783-20-2
- Khối lượng phân tử
- 132.14
- Công thức phân tử / ký hiệu hóa học
- (NH4)2SO4
Mô tả
Apearances: Colorless crystal or white particles. The specific gravity of 1.769. 235 ℃ decomposition. Soluble in water, aqueous acidic reaction. Insoluble in ethanol, acetone. Moist air will absorb moisture and caking release ammonia with alkali effect. . Decomposes to ammonia and sulfuric acid when burned.
ỨNG DỤNG
Biological agents, precipitated proteins, chromatographic analysis of reagents, urine tests, haploid breeding in the preparation of the medium. Medicine as a salting agent, food catalyst of caramel and yeast for the production of fresh yeast culture. Also used as acid dyes and dyeing auxiliary and leather deliming agent. The production of hydrogen peroxide used to make ammonium persulfate, and electroplating.
Keywords:Surface treatment chemicals
Phiếu kiểm nghiệm
|
TEST ITEMS |
TEST RESULT |
|
|
|
(AR) |
(CP) |
|
NH42SO4 |
≥99.0 |
99.0 |
|
pH(50g/L Solution，25℃) |
4.8-6.0 |
4.8-6.0 |
|
Clarity Test |
Qualified |
Qualified |
|
Chloride (Cl) |
≤0.0005 |
0.001 |
|
Residue on ignition |
≤0.01 |
0.5 |
|
Water insoluble matter |
≤0.002 |
0.01 |
|
Nitrate (NO3) |
≤0.001 |
0.005 |
|
Phosphate (PO4) |
≤0.0005 |
0.002 |
|
Ca |
≤0.005 |
-- |
|
Fe |
≤0.0002 |
0.0005 |
|
As |
≤0.00002 |
0.0002 |
|
Heavy metals (as Pb) |
≤0.0005 |
0.002 |