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Chemical reagent
Ammonium sulfate

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 standardGB/T 13961993

Test items

Specification

AR grade

CP grade

Appearance

Colorless crystal powder

Colorless crystal powder

Assay

99.0%

99.0%

pH

4.86.0

4.86.0

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.


Product categories
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