Sodium Sulphide Solid, inorganic compounds, also known as stink alkali, soda smelly, yellow alkali, sodium sulfide. Pure sodium sulfide is a colorless crystalline powder. Strong moisture absorption, soluble in water. Solution is strongly alkaline reaction. Contact with skin and hair will cause burns. Therefore, commonly known as sodium sulfide sulfide. Aqueous sodium sulfide in the air will slowly oxidize thiosulfate, sodium sulfite, sodium sulfate and sodium polysulfide. As faster generation of sodium thiosulfate, the main product of oxidation is sodium thiosulfate. Sodium sulfide in the air deliquescence, and carbonated and deterioration, constantly release hydrogen sulfide gas. Industrial sodium sulfide containing impurities its color was pink, brown, khaki. Weight, melting point, boiling point, but also due to impurities varies.
Role purpose:
1 dye industry for the production of sulfur, hydrogen sulfide and sulfide blue material;
2 dissolved sulfur dyeing industry as a co-agent;
3 tanning industry for the hydrolysis of rawhide hair removal, but also for the preparation of polysulfide to accelerate the soaking of dry skin soft. Paper and paper industry as a cooking agent;
4 rayon denitration for the textile industry and the reduction of nitro compounds, as well as cotton fabric dyeing mordant;
5 pharmaceutical industry for the production of phenacetin and other antipyretic drugs. In addition, for the system sodium thiosulfate, sodium hydrosulfide, sodium sulfide and more.
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From:Metal materials
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