Sodium Sulfide for Wastewater Treatment/Printing and Dyeing/Tanning Sodium Sulphide price

Sodium sulfide is an inorganic compound with the chemical formula Na2S, usually existing in the form of the nonahydrate Na2S·9H2O.
Sodium sulfide, also known as stinky alkali, stinky soda, yellow alkali or sulfide alkali. Pure sodium sulfide is a colorless crystalline powder with strong hygroscopicity and is highly soluble in water. Its aqueous solution is strongly alkaline. Sodium sulfide is commonly known as alkali sulfide because it can cause burns when it comes into contact with the skin and hair. Sodium sulfide aqueous solution will slowly oxidize into sodium thiosulfate, sodium sulfite, sodium sulfate and sodium polysulfide in the air. Because the formation rate of sodium thiosulfate is relatively fast, the main product of oxidation is sodium thiosulfate. Sodium sulfide deliquesces in the air and carbonates to deteriorate, continuously releasing hydrogen sulfide gas. Industrial sodium sulfide has a color of pink, brownish red or earthy yellow due to the presence of impurities. Specific gravity, melting point and boiling point also vary due to the influence of impurities

Sodium sulfide (Na₂S) is an important inorganic chemical product and has extensive industrial applications. The following are the main application fields of sodium sulfide:

Wastewater treatment: Sodium sulfide can effectively remove suspended solids, oils and heavy metal ions from wastewater, improving water quality.

Textile printing and dyeing: In the textile printing and dyeing industry, sodium sulfide is often used in the pretreatment of printing and dyeing to help remove impurities and oil stains from fibers and increase the dye uptake rate.

Metallurgical industry: Sodium sulfide is used in the metallurgical industry for metal extraction and refining processes, especially in the extraction of metals such as copper, lead, and zinc. Sodium sulfide can react with metal ions to form insoluble sulfides, facilitating subsequent separation and extraction.

Fertilizer industry: In fertilizer production, sodium sulfide can be used as a raw material to produce fertilizers such as ammonium sulfate and superphosphate.

Pulp and Paper: Sodium sulfide is used in the paper industry for bleaching and decolorization processes, which helps to improve the whiteness and quality of pulp.

Foundry industry: In the foundry industry, sodium sulfide can be used as a flux to lower the melting temperature of metals and improve the quality of castings.

Food industry: Sodium sulfide is used in food processing in the food industry, such as in meat processing to improve meat color and prevent meat from spoiling.

In the cosmetics industry, sodium sulfide can be used as a pH regulator to maintain the stability and safety of the product.

Dyeing and printing industry: In the dyeing and printing industry, it is used as a dyeing aid for dissolving sulfur dyes. 1.

Aluminum and alloy alkaline etching solution: Adding an appropriate amount of sodium sulfide to the aluminum and alloy alkaline etching solution can significantly improve the quality of the etched surface, and it can also be used to remove alkali-soluble heavy metal impurities such as zinc in the alkaline etching solution.

Corrosion inhibitor: Sodium sulfide is also used as a corrosion inhibitor 1.

Sodium thiosulfate, sodium polysulfide, sulfur dyes, etc. are raw materials: Sodium sulfide is a raw material for sodium thiosulfate, sodium polysulfide, sulfur dyes, etc. 1

Sodium sulfide is used in the production of sulfur dyes, leather depilation agents, metal smelting, photography, and denitrification of rayon, etc. 1.

The treatment of conductive layers in direct electroplating: Sodium sulfide can also be used for the treatment of conductive layers in direct electroplating. By reacting sodium sulfide with palladium to form colloidal palladium sulfide, a good conductive layer can be formed on the surface of non-metals.

Pharmaceutical industry: 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, etc.

To sum up, sodium sulfide plays an indispensable role in multiple industries

 25 KG/ BAG;  Inner bag is woven bag, sewn by machine; the intermediate layer is plastic film, sealed by heat; Outer bag is ink gray netted woven bag, sewn by machine.

Shijiazhuang Yangda Import and Export Trading Co., Ltd. is located in Shijiazhuang City, Hebei Province, covers an area of 800 mu, and has more than 5,000 employees. The main products are paraffin, titanium dioxide, zinc oxide,pvc, PP, pa6, pa66, pbt, abs), filler substrates, flame retardants, antioxidants, flexible agents, plasticizers and other chemical raw materials and plastic particles. After years of efforts and development, we have a certain scale, with a technical service team, to provide users with high-quality, professional services

1.Are you a manufacturer?
Yes, We are manufacturer.And we produce iron oxide pigments for more than 20 years.

2.Can you provide samples for testing?
Yes, Free samples 20- 200 grams each specification is available.

3. What's your MOQ?
Only 1 Ton.

4.How should I pay?
We accept all kinds of payment ways. such as ****** trade assurance, T/T,
5.How to store iron oxide pigment?
Iron oxide pigment powder should be stored in dry, cool and sealing of the environment, can not be exposure to air, in addition should avoid the heavy pressure, according to ordinary goods transportation.

6.Can you produce according to our samples?
Yes, we can produce according to your requirements.