CAS No.: 7757-82-6 (Anhydrous) / 7727-73-3 (Decahydrate)
Hazard Class: Non-hazardous
UN No.: Non-regulated
Appearance: White powder or crystals
Description: Sodium sulfate is produced as a byproduct of rayon manufacturing or mined from natural deposits, widely used as a filler in detergents (30-40% global consumption), fluxing agent in glass production, leveling agent for textile dyeing, and chemical recovery in kraft pulping. This inorganic salt exhibits high thermal stability (melts at 884°C), pH-neutral solubility (7-9 in 10% solution), and exists in anhydrous (99% purity) or decahydrate forms (converts to powder above 32.4°C).