Sodium sulfate is a white, odorless, bitter crystalline or powder with hygroscopicity. The appearance is colorless, transparent, large crystals or granular small crystals. Sodium sulfate is prone to absorbing water when exposed to air, producing decahydrate sodium sulfate, also known as saltpeter, which is slightly alkaline. Mainly used for manufacturing water glass, glass, porcelain glaze, pulp, refrigeration mixtures, detergents, desiccants, dye diluents, analytical chemical reagents, pharmaceuticals, feed, etc.
|
ITEMS OF TEST |
UNIT |
SPECIFICATION |
|
PURITY(Na2SO4 CONTENT) |
% |
≥99 |
|
Ca, Mg TOTAL (AS Mg)CONTENT |
% |
≤0.15 |
|
SODIUM CHLORIDE CONTENT(AS CL) |
% |
≤0.5 |
|
IREN( Fe) CONTENT |
% |
≤0.002 |
|
MOISTURE CONTENT |
% |
≤0.2 |
|
WATER INSOLUBLES |
% |
≤0.05 |
|
WHITENESS |
|
≥82 |
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