[English name] sodium sulfate
[structure or molecular formula]
Na 2 SO 4
[relative molecular weight or atomic weight] 142.44
[density] 1.464 (ten water), 2.698 (anhydrous)
[melting point (°C)] 32.4 (decahydrate); 884 (anhydrous)
ã€Properties】
Decahydrate: granules or powdery crystals with bitter taste; anhydrate: white powder.
ã€use】
It is used in the manufacture of sodium sulfide, pulp, glass, water glass, enamel, ultramarine, and as an antidote to laxatives and strontium salt poisoning.
[preparation or source]
Industrially, it is a by-product of the production of hydrochloric acid from salt and sulfuric acid. Natural minerals have thenardite .
ã€other】
It is rapidly weathered in the air and becomes a white powder of anhydrate.
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