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Sodium Sulphide CAS 1313-82-2 powder granular flake

Sodium Sulphide is an important inorganic compound widely used in various industrial fields. It has multiple common aliases, including Sodium Sulfuret, Caustic Soda Sulfide, Yellow Alkali and Stink Soda. The CAS number is 1313-82-2, which is a key identifier for international trade and quality inspection. The product is available in three common forms:powder, granular and flake, which can meet different application needs of import purchasers.

Product Properties and Physical Characteristics

Sodium Sulphide is a typical inorganic sulfide with obvious physical and chemical properties. Pure Sodium Sulphide is colorless prismatic crystal, while industrial-grade products are usually pink, reddish brown or earthy yellow due to impurities. It has a strong hygroscopicity and can absorb moisture in the air easily, leading to deliquescence and carbonization, and continuously releasing hydrogen sulfide gas with a pungent odor similar to rotten eggs.

In terms of physical properties, Sodium Sulphide is highly soluble in water, and its aqueous solution shows strong alkalinity (pH value is about 12). It is slightly soluble in ethanol and insoluble in ether. The density of anhydrous Sodium Sulphide is 1.86g/cm³, and its melting point is 950℃. It starts to evaporate at 100℃, and the vapor can erode glass. The product has passed REACH registration, which complies with EU import and export standards, and MSDS download is available for purchasers to check safety information.

Common Product Specifications

Product Applications

Sodium Sulphide has a wide range of applications in industrial production, making it a key product for import purchasers in multiple industries:

Mineral Flotation: It is used as an activator or depressant in flotation operations, which can sulfurize non-ferrous metal oxide ores, inhibit various sulfides, and help separate ores efficiently, improving the recovery rate of minerals.

Tanning Industry: It is used for raw hide unhairing, and can also be prepared into polysodium sulfide to accelerate the soaking and softening of dry hides, improving the quality of leather products.

Dye and Printing Industry: It is a core raw material for the production of sulfur dyes such as sulfur black and sulfur blue, and also serves as a mordant and dyeing assistant in the printing and dyeing process, helping dyes adhere to fabrics better.

Other Fields: It is used as a cooking agent in the papermaking industry to decompose lignin and separate fibers; in the electroplating industry, it is used to treat the conductive layer of direct electroplating; it is also used in the pharmaceutical industry for the production of antipyretic drugs such as phenacetin, and in the chemical industry for the preparation of sodium thiosulfate and sodium hydrosulfide.

FAQ

Q1: Is Sodium Sulphide a hazardous chemical, and what precautions should be taken during transportation?

A1: Yes, Sodium Sulphide is a hazardous chemical. It is a strong alkaline corrosive substance, and anhydrous Sodium Sulphide is a self-igniting product. During transportation, it should be handled with care to avoid packaging damage, and it should be stored separately from oxidants and acids. It should also be protected from sun and rain, in line with international dangerous goods transportation regulations.

Q2: Can the particle size of Sodium Sulphide powder, granular and flake forms be customized according to requirements?

A2: Yes, the particle size of the three forms (powder, granular, flake) can be customized according to the specific application needs of purchasers, so as to better adapt to different production processes and equipment requirements.

Q3: How to obtain the REACH registration certificate and MSDS document of Sodium Sulphide?

A3: The product has passed REACH registration, and the registration certificate can be provided on request. MSDS download is available on the product page, and purchasers can download it directly to obtain detailed safety information such as hazard characteristics, first aid measures and operation precautions.

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