Sodium sulfide, also known as smelly alkali, smelly soda, alkali sulfide, is an inorganic compound, the chemical formula is Na2S, the appearance of colorless crystalline powder, soluble in water, insoluble in ether, slightly soluble in ethanol. It burns when touched on skin and hair, so sodium sulfide is commonly known as alkali sulfide. When exposed to air, sodium sulfide emits toxic hydrogen sulfide gas that smells like rotten eggs. Industrial sodium sulfide due to impurities in its color is pink, brown red, earth yellow.
Chinese name: Sodium sulfide
Foreign name: sodium sulfide
Other names: Alkali sulfide, smelly alkali, smelly soda
Chemical formula: Na2S
Molecular weight: 78.04
CAS login number: 1313-82-2
EINECS entry number: 215-211-5
Melting point: 950 ℃
Water solubility: 186 g/L (20℃)
Density: 1.86g /cm³
Appearance: Colorless crystalline powder
Security description: S26; S45; S61
Danger symbol: C
Risk description: R31; R34; R50
UN Dangerous Goods Number: 1849
Packaging and Shipping Information
25kg*880bag
22ton/FCL
Application
1, used in the dye industry for the production of sulfur dyes, is the raw material of sulfur blue and sulfur blue. Printing and dyeing industry used as an aid to dissolve sulfide dyes. In the tannery industry, it is used for hydrolysis to remove hair from raw skin, and it is also used to prepare sodium polysulfide to accelerate the immersion of dry skin and help soften it. Paper industry used as paper digester. The textile industry is used for the reduction of artificial fiber denitrification and nitrification, as well as mordant for cotton fabric dyeing. The pharmaceutical industry is used to produce antipyretic drugs such as phenacetin. In addition, it is also used to produce sodium thiosulfate, sodium hydrosulfide, sodium polysulfide and so on.
2. Adding an appropriate amount of Sodium sulfide to the alkaline etching solution of aluminum and alloy can significantly improve the quality of the etched surface, and can also be used to remove alkali soluble heavy metal impurities such as zinc in the alkaline etching solution.
3, sodium sulfide can also be used in direct electroplating conductive layer treatment, through the reaction of sodium sulfide and palladium to form colloidal palladium sulfide to achieve the purpose of forming a good conductive layer on the non-metallic surface.
4, used as corrosion inhibitor. It is also a raw material for sodium thiosulfate, sodium polysulfide, sulfide dyes, etc.
5, used in the manufacture of sulfur dyes, leather hair removal agents, metal smelting, photography, rayon denitrification and so on.
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Company Introduction
Shandong DESENLAI Chemical Co., Ltd. was established in July 2011, headquartered in Tianqiao District, Jinan City, Shandong Province.
With more than ten years of fine chemical business foundation, DSL Chemical is committed to building the most valuable chemical trading company in the whole industrial chain in China. With advanced marketing concept combined with modern management mode, the company provides customers with quality products and services and comprehensive "all-around" solutions.
The company adheres to the goal of green and sustainable development, and has long been committed to the operation of various fine chemical products, involving lithium new energy, biodegradable materials and other green energy fields. Such as NMP, butyrate, BDO, adipic acid, glycol and so on.
