[ Molecular Formula ] : Na2S
[EINECS] : 215-211-5
[Cas No]. 1313-82-2
[Molecular Weight]: 78.03
[Appearance]: Yellow flake or Red flake
[Toxicity]:Oral Rat LD50: 208 mg/kg
[Solubility in water]: Soluble (slightly soluble in alcohol)
[Stability]: Stable under ordinary conditions. Oxidizes in air
1.Used in the production of sulfur dyes in the dye industry, is the raw material of sulfur blue and sulfur blue.The printing and dyeing industry is used as a dyeing aid to dissolve sulfide dyes.In leather industry, it is used to hydrolyze and depilate raw skin, and to prepare sodium polysulfide to accelerate the soaking of dry skin.The paper industry is used as a cooking agent for paper.A mordant used in the textile industry for denitration of man-made fibers, reduction of nitrates, and dyeing of cotton fabrics.The pharmaceutical industry is used in the production of phenacetin and other antipyretics.In addition, it is also used to make sodium thiosulfate, sodium thiohydride, sodium polysulfide and so on.
2. Adding appropriate amount of sodium sulfide to the alkaline etching solution of aluminum and alloy can significantly improve the etching surface quality, and it 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 sodium thiosulfate, sodium polysulfide, sulfur dyes and other raw materials.
5.Used for manufacturing sulfur dyes, leather depilator, metal smelting, photography, rayon denitrification, etc.
25kg/bag 800 bags/20fcl 20 tons/20fcl
Apperance red flakes
Na2S 60% min
Apperance yellow flakes
Na2S 60% min
<td valign="top" width="127" style="text-size-adjust: none; margin: 0px; padding: 0cm 5.4pt; font-style: inherit; font-variant: inherit; font-stretch: inherit; line-height: inherit; font-family: inherit; float: none; word-wrap: break-word;" hei