SSA 99% 1.good quality and reliable production capacity 2.competitive price 3.professional service SSA /Sodium Sulphate Anhydrous/Na2SO41.UsageSodium Sulphate Anhydrous can be used in papermaking, glass,fiber, leather, metallurgy, enamel,dye and soap.also can be used as filler, dyeing auxiliary, laxative, antidote 2.StandardGB/T 6009-923.Test report Dyeing GradeITEMSpecificationResultPurity%≥97. ...