产品描述

Characteristics     White crystallized powder
Content >=%     99.5
Melting point     121-124℃
Loss on drying  =< %     0.5
Sulfate =< %              0.1  
Burnt Residue  =< PPM     300
Chlorides =< %     0.02
Heavy metals(As Pb)  =< PPM     10
Arsenic =<%     0.0003
Lead =< ppm     5
Mercury =< ppm     1
Oxidisable substances     Passing test
Carbonisable substances =<     Y5
Colour of solution =<     B9