... :99 pct min appearance:white packing; 25kg or 50kg or big-bag or according customer need Sodium sulphate (sodium sulfate) ... textile industry and medicine industry, etc.3. Used for analysis reagent, such as dehydrating agent, when nitrogen digestive catalyst, atomic ... and dyeing and pharmaceutical industry, synthetic fiber, leather, non-ferrous metallurgy, enamel, etc can be used in the manufacture, ...