... 12000MT/month 4.Factory Chemical Name: Na2SO4 99.6% Min Sodium sulfate anhydrous Molecular formula: Na2SO4Molecular weight: 142. ... absorb moisture; odorless, non-toxic. Use: widely used in vinylon, sodium silicate, bleaching, glass, paper making, ... synthetic fiber, leather industry as well.Sodium sulfate Specifications Anhydrous sodium sulfate.GB/T9853-2008No .Test ItemsUnit ARResultsLevel 1Na2SO4 ...