Product Details
Introduction:pure sodium sulfide is a colorless crystalline powder. Strong moisture absorption, soluble in water. Reaction was strongly alkaline aqueous solution. Contact with skin and hair will cause burns. Therefore, commonly known as sodium sulfide sodium sulfide. Sodium solution in the air will be slowly oxidized to sodium thiosulfate, sodium sulfite, sodium sulfate and sodium polysulfide. Since the formation of sodium thiosulfate faster, so the main product of oxidation is sodium thiosulfate. Deliquescent sodium sulfide in the air, and carbonation and deterioration, continued release hydrogen sulfide gas. Industrial sodium sulfide due to impurities, the color pink, brown, khaki. Weight, melting point, boiling point, but also because of the effects of different impurities. When the sodium sulfide exposed to humid air when, Na2S and its hydrates emit hydrogen sulfide. Test item GB/T10500-2000 I kind Grade standard value measured sodium sulfide (Na2S) content% ≥ 60.0 60.32 sodium sulfite (Na2SO3)% ≤ 1.08 sodium thiosulfate (Na2S2O3)% ≤ 0.86 Iron (Fe) content% ≤ 0.12 0.10 sodium carbonate (Na2CO3)% ≤ 5.0 2.45Water insoluble matter% ≤ 0.40 0.30 Application:used to produce sulfur dyes, leather hair removal agents, metal smelting, photography, such as rayon and denitrification. Widely used in leather, paper, mineral processing, dye, organic intermediates, printing and dyeing, pharmaceutical, MSG, artificial fiber, special engineering plastic, polyphenylene sulfide, poly base rubber, also used in manufacturing sodium hydrosulfide, and more sodium sulfide, sodium thiosulfate, etc., in the military industry also has some uses. (1) In the dye industry for the manufacture of sulfur dyes, curing green, blue or dye intermediate sulfide reducing agent, mordant, and so on. (2) In the non-ferrous metallurgical industry as ore flotation agents.(3) leather industry hides the hair removal agent. (4) paper industry paper cooking agent. (5) sodium sulfide is also used sodium thiosulfate, polysulfide, sodium hydrosulfide and other product manufacturing. (6)also widely used in textiles, paints, rubber and other industrial sectors.
