Sodium sulfide
Synonyms: SODIUM SULPHIDE;SODIUM SULFIDE;Disodium monosulfide;Disodium sulfide;disodiummonosulfide;disodiumsulfide;Hesthsulphid;Na2-S
CAS: 1313-82-2
MF: Na2S
MW: 78.04
EINECS: 215-212-0
Melting point 950 °C(lit.)
density 1.86 g/mL at 25 °C(lit.)
storage temp. Refrigerator (+4°C)
solubility H2O: 0.1 g/mL, clear, colorless
form flakes
Water Solubility 186 g/L (20 oC)
Sensitive Hygroscopic
Merck 14,8681
Stability: Spontaneously flammable. Incompatible with acids, metals, oxidizing agents. Contact with acid liberates toxic gas. Fine dust/air mixtures are explosive. Hygroscopic.
Chemical Properties It is pale yellow flakes with the main features being the iron (Fe2O3) content is lower than 30 mg/kg. See other properties in sodium sulfide.
Uses It can be used for the production of high-grade sulfur dye and high-quality leather. It can be used in the production of high-grade paper production in the paper industry.
In the dye industry, it can be used for the production of sulfur dye and is the raw material of sulfur green and sulfur blue. In the printing and dyeing industry, it can be used as a facilitator agent for dissolving sulfur dye. In the tanning industry, it can be used for the hydrolysis for hair removal of raw skin and also used for the preparation of sodium polysulfide to help accelerate soaking and softening of dry skin. It can also be used as the cooking agent of papermaking industry. In fiber textile industry, it is used for the denitrofication of artificial fiber textile as well as the reduction of nitration as well as the mordant for cotton fabric dyeing. In the pharmaceutical industry, it is mainly used for the production of antipyretic drugs such as phenacetin. In addition, it can also be used for making sodium thiosulfate, sodium hydrosulfide, and sodium polysulfide.
It can be used for analysis reagents and leather depilatory
It can be used for the manufacture of dyes, sulfide, and used as ore flotation agent, depilatory rawhide, and the cooking agent of paper.