Item Standard Inspection result
Appearance White or slight yellowish crystal powder , Pass
Loss on dry, % 1.0max 0.6%
Content, 98% min 99.2%
Reduzate , % 0.7 max 0.3
Chloride, % 0.07max 0.002
Sulphate, % 0.05max 0.003
Ph 6.2-7.8 6.7
Pb , g/g 2max 0.5
Heavy metal, g/g 10max 5
Arsenic salt, g/g 2max 1
Apearance of solution Clear Clear
