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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
1.The primary use of ammonium sulfate is as a fertilizer for alkaline soils. In the soil the ammonium ion is released and forms a small amount of acid, lowering the pH balance of the soil, while contributing essential nitrogen for plant growth
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
25kg per bag
China
