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      1. Sodium sulfide of low iron

        Na2SEnglish Name: Sodium SulfideMolecular Formula: Na2SMolecular Weight: 78.04CAS No.: 1313-82-2H.S. Code: 28301010Product IntroductionSodium sulfide is also called smelly alkali, smelly soda and alka

        Na2S

        English Name: Sodium Sulfide

        Molecular Formula: Na2S

        Molecular Weight: 78.04

        CAS No.: 1313-82-2

        H.S. Code: 28301010


        Product Introduction

        Sodium sulfide is also called smelly alkali, smelly soda and alkali sulfide. Sodium sulfide is an inorganic compound, and pure sodium sulfide is a colorless crystalline powder.

        Sodium sulfide is highly hygroscopic and soluble in water, and its aqueous solution is alkaline. Contact with skin and hair can cause burns. Sodium sulfide deliquesces in the air and deteriorates due to carbonation, releasing hydrogen sulfide gas continuously. Industrial sodium sulfide is pink, brownish red and khaki due to the presence of impurities. Specific gravity, melting point and boiling point are also affected by impurities.


        Technical Index

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        Application Fields

        Sodium sulfide is used in sulfur dye and leather depilatory manufacturing, metal smelting, photography, rayon denitration, etc. It is widely used in leather making, paper making, mineral processing, dye production, organic intermediate, printing and dyeing, pharmaceuticals, monosodium glutamate, artificial fiber, special engineering plastics, polyphenylene sulfide, polyalkali rubber, as well as the manufacturing of sodium hydrosulfide, sodium polysulfide, sodium thiosulfate, etc. It is also used in military industry to some extent.

        ① In dye industry, it is used to manufacture sulfur dyes, sulfur black, sulfur blue or dye intermediate reducer, mordant, etc.

        ② In nonferrous metallurgy industry, it is used as flotation agent for ore.

        ③ In leather industry, it is used as depilatory for raw hides.

        ④ In papermaking industry, it is used as cooking reagent for paper.

        ⑤ Sodium sulfide is also used in the manufacture of sodium thiosulfate, sodium polysulfide, sodium hydrosulfide and other products.

        ⑥ It is also widely used in textile, pigment, rubber and other industrial sectors.


        2.4 Storage Method: It shall be kept in a well-sealed container in a cool place and protected from light; and shall prevent deliquescence in hot summer.


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