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Inorganic Compound Xanthine Na2S Sodium Sulfide with Cas No

2020-09-07 14:41

Sodium Sulfide

Sodium sulfide is also called stinky alkali, stinky soda, yellow alkali, and alkali sulfide. Sodium sulfide is an inorganic compound, and pure sodium sulfide is a colorless crystalline powder. It has strong moisture absorption and is easily soluble in water. The aqueous solution is strongly alkaline. It can cause burns when touching the skin and hair. So sodium sulfide is commonly called alkali sulfide.Sodium sulfide deliquescence in the air, and carbonation and deterioration, continuously releasing hydrogen sulfide gas. Industrial sodium sulfide is pink, brown-red, and ocher due to impurities.

Item National Standard GB/T 10500-2000
Sodium sulfide % ≥60.0
Iron % ≤0.008
Sodium Carbonate ≤5.0
Water Insolubles % ≤0.2


1. Sodium Sulfide Used in the dye industry to produce sulphur dyes, which are raw materials for sulphur blue and sulfur blue. 
2. Adding an appropriate amount of sodium sulfide in the aluminum and alloy alkaline etching solution can significantly improve the surface quality of the etching, and can also be used for the removal of alkali-soluble heavy metal impurities such as zinc in the alkaline etching solution.
3. Sodium sulfide can also be used for the treatment of the conductive layer in direct electroplating, and the colloidal palladium sulfide is formed by reacting sodium sulfide with palladium to achieve the purpose of forming a good conductive layer on the non-metal surface.
4. Used as a corrosion inhibitor. It is also a raw material of sodium thiosulfate, sodium polysulfide, sulphur dye, etc.
5. Used in the manufacture of sulphur dyes, leather depilatory agents, metal smelting, photography, rayon denitration and so on.
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