Sodium Sulfate Anhydrous (Glauber Salt)
Sodium sulfate (also known as sodium sulphate or sulfate of soda) is the inorganic compound with formula Na2SO4 as well as several related hydrates. All forms are white solids that are highly soluble in water.
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Sodium sulfate displays a moderate tendency to form double salt. The only alum formed with common trivalent metals are (unstable above 39 °C) and, in contrast to Potassium Sulphate and Ammonia Chloride which form many stable alums. Double salts with some other alkali metal sulfates are known, including Na2SO4·3K2SO4 which occurs naturally as the mineral.
Generates as a waste or byproduct in many operations such as waste acid neutralization, ion exchange regeneration, flue-gas desulfurization, and rayon manufacture.
In rayon manufacture.
Water-splitting technology is applied to these sulfate streams to upgrade the salt to acid and base, thus reducing or eliminating a pollution problem.
Kraft process of paper pulping.
Cattle Feed, Food & Pharmaceuticals.