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Specifications
Sodium Sulphate Anhydrous (SSA)
Na2SO4
High purity 99.2%
Good color
CAS NO.: 7757-82-6
Sodium Sulphate Anhydrous (SSA)
Molecular formula: Na2SO4
Molecular weight: 142.04
Molar mass: 142.04 g/mol (anhydrous)322.20 g/mol (decahydrate)
Appearance: White crystalline solid hygroscopic
Density: 2.664 g/cm3 (anhydrous) 1.464 g/cm3 (decahydrate)
Melting point: 884 ° C (anhydrous) 32.4 ° C (decahydrate)
Boiling point: 1429 ° C (anhydrous)
Solubility in water: 47.6 g/L (0 ° C) 427 g/L (100 ° C)
Synonyms: Disodium sulfate; Sodium sulfate anhydrous; Sulfuric acid, disodium salt; Sodium sulfate; Speed-dry
SSA Character
Achromatic colour, hygroscopic property white pellet crystal or powder. Easy to dissolve in water, dissolve in glycerin, not dissolve in alcohol, aqueous liquor is neuter. Higher purity, granule exiguous thing is called sodium sulphate. Sodium sulfate may form seven water thing or ten water thing, seven water thing (Na2SO4.7H2O) is white askew square crystal. When heat to 24.4 centigrade become anhydrous thing. Sodium sulfate and carbon are deoxidized become sodium sulfide during the pyroreaction.
USAGE
Sodium sulfate Anhydrous is consumed in four major categories; Powder detergents as a processing aid and as a filler, wood pulp processing for making kraft paper, textile dyeing processes as a levelling agent to penetrate evenly, and molten glass process to remove small air bubbles. In addition, it is usually used for sodium sulfide, sodium silicate and other chemical products, synthetic fibers, leather, nonferrous, metallurgy, enamel and soap etc.
Packing:
Packing with 25 kg or 50 kg weave bag, inner lining bed of plastic bag.
Store and transportation:
Should store at the ventilated, dry storehouse. In summer or high temperature easy to unfreeze and coagulate become big block, should protection against the tide, guard against rain. Pay attention to keep the packing entireness, avoidance get in touch with food, coal, cement etc...When catch fire, use water and any fire extinguisher to save.
| PRODUCT NAME: SODIUM SULPHATE ANHYDROUS |
| TEST ITEMS |
STANDARD VALUE |
TEST VALUE |
| Appearance |
White crystal |
White crystal |
| Sodium sulphate |
99%MIN. |
99.13% |
| Moisture |
0.20%MAX. |
0.02% |
| Water insolubles |
0.05%MAX. |
0.001% |
| Ca+ & Mg+ |
0.15%MAX. |
0.001% |
| Chloride |
0.35%MAX. |
0.33% |
| Whiteness |
80MIN. degree |
86.5 |
| Test standard |
GB/T6009-2003 |
| Conclusion |
The product is sampled according to GB/T8618-2001 and tested as
per GB/T6009-2003, and the test result is eligible. |
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