Sodium Sulfate with white monoclinic crystal or powder.Can be used as an salting agent or flocculating agent in medicine,and can be used in paper,glass,printing and dyeing,synthetic fiber,leather industry as well. CAS No.:7757-82-6 Molecular formula Na2SO4 Density 2.68g/m3 PH value 6-8 Appearance white monoclinic crystal or powder Chemical Characteristics GB/T6009-2003 Content (Na2SO4) 99.0%min Water insolubles 0.05%max Ca Mg 0.15%max Chloride (Cl) 0.35%max Iron (Fe) 0.002%max Moisture 0.20%max Whiteness 82min Packing:50kg or 1000kg/bag. plastic bags inside and woven bag outside. Storage:Stored in a cool,ventilated warehouse.Away from fire and heat,Acids,etc.should be kept separately,avoid mixed reserve.