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Ammonium sulfate CAS 7783-20-2 is White crystalline powder,odorless,Sinks and dissolves in water.Dissolves in water with evolution of some heat.Insoluble in ethanol.
Specification
| Reagent grade | Pharmaceutical grade | Food grade | |
| Content | ≥99% | 99.0%-100.5% | 99.0%-100.5% |
| Appearance of solution | Conform | ||
| Water-insoluble | ≤0.002% | ||
| PH | 4.8-6.0 | 5.0-6.0 | |
| Ignition residue | ≤0.01% | ≤0.25% | |
| Chloride | ≤0.0005% | Comply with the standard | |
| Nitrites | ≤0.001% | Comply with the standard | |
| Phosphate | ≤0.0005% | Comply with the standard | |
| Arsenic | ≤0.00002% | ≤3mg/kg | |
| Calcium | ≤0.005% | ||
| Iron | ≤0.0002% | ≤5ppm | |
| Heavy metal | ≤0.0005% | ≤0.002% |
Application
2.It is also used as an agricultural spray adjuvant for water-soluble insecticides, herbicides, and fungicides
3.Manufacture of ammonia alum; in the manufacture of H2SO4 to free it from nitrogen oxides; analytical uses; freezing mixtures, flameproofing fabrics and paper; manufacture of viscose silk; tanning, galvanizing iron; in fractionation of proteins
4.Ammonium Sulfate is a dough conditioner, firming agent, and pro- cessing aid which is readily soluble in water with a solubility of approximately 70 g in 100 g of water at 0°c. the ph of a 0.1 molar solution in water is approximately 5.5. it is used in caramel produc- tion and as a source of nitrogen for yeast fermentation. in bakery products, up to 0.25 part per 100 parts by weight of flour is used.
5.May be used for the precipitation or fractionation of proteins or for purification of antibodies. Useful for crystallographic analysis of nucleic acids and proteins.
6.Ammonium sulfate is used on a small scale in the preparation of other ammonium salts, especially ammonium persulfate.
Packaging
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