Sodium sulfide
Sodium sulfide (CAS 1313-82-2), with the chemical formula Na2S and a molar mass of 78.04 g/mol, is an inorganic compound typically supplied as a solid. It is a key reagent in various industrial processes, including its use as a reducing agent in chemical synthesis and its application in the production of dyes and other sulfur-containing compounds. Its properties make it valuable in materials science and catalysis.
Chemical Synthesis
Sodium sulfide serves as a crucial sulfur source and reducing agent in the synthesis of various organic and inorganic compounds. It is particularly useful for introducing sulfur into molecules and for carrying out reduction reactions in organic chemistry.
Dye Manufacturing
It is widely employed in the production of sulfur dyes, which are important for dyeing cellulosic fibers like cotton and rayon. Sodium sulfide acts as a reducing agent in the complex chemical processes required to manufacture these colorants.
Metallurgy and Mining
In extractive metallurgy, sodium sulfide is used as a precipitating agent to remove heavy metals from wastewater. It is also utilised in the mining industry as a flotation agent to separate valuable minerals from ore.
Leather Tanning
Sodium sulfide is applied in the leather industry for the unhairing of hides and skins. This process aids in removing hair and preparing the leather for further treatment and tanning.
| Molecular weight | 78.04 |
|---|---|
| Linear formula | Na2S |
| Form | solid |
| Density | 1.86 g/mL at 25 °C(lit.) |
| Storage temperature | 2-8°C |
| Melting point | 950 °C(lit.) |
Hazard statements
- H290May be corrosive to metals
- H301Toxic if swallowed
- H314Causes severe skin burns and eye damage
- H400Very toxic to aquatic life
Precautionary statements
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 1385 4.2/PG 2 |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | C,Xn,N |
| Risk statements (R) | 22-31-34-50 |
| Safety statements (S) | 26-36/37/39-45-61 |
| Supplemental hazards | Contact with acids liberates toxic gas., Corrosive to the respiratory tract. |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Sodium Sulfide (CAS 1313-82-2) used for?
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Sodium sulfide (CAS 1313-82-2) is used in chemical synthesis, dye manufacturing, metallurgy, mining, and leather tanning. It acts as a reducing agent, a sulfur source, and a precipitating agent for heavy metals.
What are the CAS number and chemical formula for Sodium Sulfide?
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The CAS number for Sodium Sulfide is 1313-82-2, and its chemical formula is Na2S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Sodium Sulfide as a solid. The purity is not specified beyond the general product data; therefore, TSS does not represent it as USP, BP, or EP grade.
How should Sodium Sulfide be handled safely?
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Sodium sulfide is corrosive and releases toxic gas upon contact with acids. Handle with appropriate personal protective equipment, including eyeshields, gloves, and a respirator. Ensure good ventilation and avoid contact with acids.
Is Sodium Sulfide a controlled substance?
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The provided data does not indicate that Sodium Sulfide (CAS 1313-82-2) is a controlled substance.
How is Sodium Sulfide packed, shipped, and exported by TSS?
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Sodium sulfide is typically supplied as a solid. Specific packing and shipping details are available upon request, and TSS is experienced in exporting chemicals globally.
How can I request a sample or quote for Sodium Sulfide?
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To request a sample or quote for Sodium Sulfide, please contact the Tech Serve Solutions sales team directly through our website or by phone.
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