Specification :

Specifications:
ITEM STANDARD
sodium sulphate % ( Na2SO4) 99.5 MIN. 99.0 MIN. 99.0 MIN.
water insolubles % 0.01 MAX. 0.05 MAX. 0.05 MAX.
Ca + Mg ( as Mg) % 0.03 MAX. 0.15 MAX. 0.15 MAX.
chlorides % ( Cl) 0.07 MAX. 0.35 MAX. 0.35 MAX.
iron % ( Fe) 0.002 MAX. 0.002 MAX. 0.002 MAX.
moisture % 0.20 MAX. 0.20 MAX. 0.20 MAX.
whiteness % 85 MIN. 82 MIN. 82 MIN.
PH-value 6-7.5 6-8 9-11
Partickle size: Passed through on 100 mesh around 60-65% around 60-65% not required