|
Content
|
99% min
|
|
Chloride (Cl)
|
0.05% max
|
|
Sulphate (SO4)
|
0.05% max
|
|
Nitrate
|
0.01% max
|
|
Phosphate
|
0.01% max
|
|
Residue on ignition
|
0.1%
|
|
Iron (Fe)
|
0.002% max
|
|
Heavy metal (Pb)
|
0.005% max
|
Usage: used in the medicine intermediate and food antiseptic, the chemical reagent and so on
