Sodium Sulfate Synonyms: Disodium sulfate; sodium sulfate anhydrous; sulfuric acid, disodium salt; sodium sulfate; Speed-dry, sodium sulphate anhydrous Chemical Formula: Na2SO4 HS Code: 2833.1100 Specification:ITEM STANDARDsodium 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-value6-7.56-89-11Partickle size: Passed through on 100 mesharound 60-65%around 60-65% not required Packing: 50KGsPP bag/1000KGs PP bag.Used as materials for synthetic detergent, glass, papermaking, inorganic salts, dyestuff, alcohol fibre, tanning, metal smelting, surface treatment and filler industries etc.