2,Specification
|
Purity(NH2SO3H)
|
99.8% min
|
99.5% min
|
|
Sulfate (SO4)
|
0.02% max
|
0.05% max
|
|
Iron (Fe)
|
0.0002% max
|
0.0005% max
|
|
Heavy Metal
|
0.0003% max
|
0.001% max
|
|
Insoluble in water
|
0.01% max
|
0.01% max
|
|
Moisture
|
0.03% max
|
0.05% max
|