The Sodium Sulphate Anhydrous min 99%, White content ... Ferric Chloride ,Polymerization iron sulfate , potassium sulfateand Sodium Tripolyphosphate . And our products mainly export to North ... Website: http://www.centralqd.comSpecification and details: ITEMSTANDARDsodium sulphate (Na2SO4), %:99.0 MIN.water insolubles , ... 00150.008moisture, %<0.100.30whiteness, % min8680 Sodium Sulphate Anhyrous(SSA)99%