1. Chemical Name: SODIUM SULFATE ANHYDROUS/SODIUM SULFATE DECAHYDRATE
2. Molecular Formula: Na2SO4/Na2SO4·10H2O
3. Molecular Weight: 142.042/322.20
4. CAS Number: cas no 7757 82 6/7727-73-3
5. Packaging: Packaged in polyethylene plastic bags inside and plastic woven bags outside, with each bag weighing 25 kg.
6. Storage and Transportation: Should be stored in a dry, ventilated, clean warehouse. Handle with care to prevent damage and exposure to moisture and heat. During transportation, it should be protected from rain and moisture and stored separately from toxic substances.
Properties of Sodium Sulfate
Sodium sulfate is a white crystalline or powdered substance that readily absorbs moisture from the air, transforming into a hydrated form. At 241°C, it transitions to a hexagonal crystal structure. The high-purity, fine-grained anhydrous form is known as "anhydrous sodium sulfate" or "salt cake". It dissolves easily in water, producing a cooling sensation and a taste that is cool and slightly salty. In humid air, it tends to hydrate, forming a powdery hydrated surface layer.
Applications of Sodium Sulfate
Chemical Industry: Used in the production of sodium sulfide, sodium silicate, water glass, and other chemical products.
Paper Industry: Serves as a cooking agent in the manufacture of sulfate pulp.
Glass Industry: Acts as a substitute for soda ash as a flux.
Textile Industry: Used in the preparation of spinning coagulant for vinylon.
Others: Also used in non-ferrous metallurgy, leather, and as a raw material for producing sodium sulfide, pulp, glass, water glass, ceramic glazes. Additionally, it serves as a laxative and an antidote for barium salt poisoning."
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