Ammonium sulfate 99.3%min

Quality standard:

GB 535—1995

Molecular formula:

(NH4)2SO4

Relative molecular weight:

132.14

Property:

white powdered crystal, density: 1.769(20), m.p.: (oC): 513oC±2oC, relative density: (water=1): 1.77, easily soluble in water, insoluble in alcohol and acetone; corrosive t steel and iron; decomposed at 100 Celsius degree.

Use:

It is used as nitrogen fertilizer; as printing & dyeing auxiliary etc.

ITEM

SPECIFICATION

TEST RESULT

PURITY:

99.0%MIN

99.1%

N (Dry Basis):

21%MIN

21.1%

MOISTURE:

0.2%MAX

0.1%

H2SO4:

0.05%MAX

0.05%

S :

24%MIN

24.1%

Fe :

0.007%MAX

0.001%

As:

0.00005%MAX

0.00001%

Pb:

 0.005%MAX

0.001%

WATER INSOLUBLE  :

0.05%MAX

0.02%