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Sodium Sulphide
Sodium sulphide is yellow or red flakes, strong moisture absorption, soluble in water, and water solution is strongly alkaline reaction. The method of solution in the air will slowly oxygen to sodium thiosulfate, sodium sulfite, sodium sulphide and sodium polysulfide, because sodium thiosulfate’s generating speed is faster, its major product is sodium thiosulfate. Sodium sulphide is deliquesced in the air and carbonated so that it is metamorphic, and constantly release hydrogen sulfide gas. The industrial sodium sulphide includes impurities, so its color is red and yellow. Specific gravity and boiling point are influenced by impurities.
Description of goods: Sodium Sulphide
Mol.formula: Na2S
CAS
No. : 1313-82-2
Grade
Standard: Industrial Grade
Purity: 60%min
Specification
|
Item |
Standard I |
Standard II |
Standard III |
Standard IV |
Standard V |
|
Fe |
30 ppm max |
50 ppm max |
150 ppm max |
1500 ppm max |
|
|
Na2S |
60% min |
60% min |
60% min |
60% min |
60% min |
|
Water insolubles |
0.03% max |
0.18% max |
0.18% max |
0.30% max |
0.40% max |
|
Na2CO3 |
1.80% max |
1.80% max |
1.80% max |
3.00% max |
5.00% max |
|
Na2SO3 |
1.00% max |
1.80% max |
2.00% max |
2.00% max |
2.00% max |
|
Na2S2O3 |
2.00% max |
2.00% max |
2.00% max |
2.00% max |
2.00% max |
|
Colour |
Yellow |
Red |
|||
Properties:
Yellow or red flakes, strong moisture absorption, soluble in water, and water solution is strongly alkaline reaction. Sodium sulphide will cause burns when is touched with the skin and hair.
Sodium thiosulfate, sodium sulfite, sodium sulphide and sodium polysulfide, because sodium thiosulfate’s generating speed is faster, its major product is sodium thiosulfate. Sodium sulphide is deliquesced in the air and carbonated so that it is metamorphic, and constantly release hydrogen sulfide gas. The industrial sodium sulphide includes impurities, so its color is red.
Application
1. Used in Leather or tanning for removing hair from hides and skins
2. Used in synthetic organic intermediate and preparation of sulfur dye additives
3. Used in textile industry as a bleaching, as a desulfurizing and as a dechlorinating agent
4. Used in pulp and paper industry
5. Used in water treatment as an oxygen scavenger
6. Used in the photographic industry to protect developer solutions from oxidation
7. Used in the production of rubber chemicals and other chemical compounds
8. Used in other applications include ore flotation, oil recovery, food preservative,making dyes, and detergent.
9. Used in mining industry as inhibitor , curing agent , removing agent
Package
25kg PP/PE bag, or by request of clients.
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