Specification:
sodium sulphate(ph6-8):standard
sodium sulphate:99.0%min.
Water insouble matter:0.05%max
chloride (as cl) :0.05%max.
Ca+mg(as mg) :0.1%max.
Iron(fe) :0.005%max.
Moisture;:0.1%max.
Ph: 6--8:6--8
whiteness:82 min.
Density:1.45gml max.
Sample :free