Appearance:

Colorless crystal or crystal powder or crystal slice.

Content:

99.0-101.0%

Acidity:

20ml sample not more than 2.0ml of 0.01M NaOH

Sulphate:

≤600PPm

Heavy metal:

≤20PPm

Chloridate:

≤200PPm

Loss on drying:

≤0.5%

Acidity:

Can not exceed 2.0 ml when consuming 0.01MnaOH standard solution