1.Formucla:Na2SO42.Molecular weight:142.043.Characteristices:It is a white crystal and easily dissolvable in water.4.Use:It is an industry,glass,paper,dyestaff,leather and medicinal industy,etc.5.Measure standard:The internal business standard is formulated by state standard(GB6009-85).6.Packing:Polypropy lene fabric bag lined with plastic bag.7.Weight:25kg,50kg,1000kg.