SODIUM SULFIDE- ▸ Leather: Dehairing (depilatory) agent in tanning.
- ▸ Water treatment: Precipitates heavy metals from effluent.
- ▸ Ore flotation: Flotation and depressant agent in mineral processing.
- ▸ Chemical intermediate: Reducing agent and sulfur source in synthesis.
- ▸ Pulp and dyes: Reagent in pulping and sulfur-dye manufacture.
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
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Transport classification per the UN Model Regulations / 49 CFR 172.101 Hazardous Materials Table. Confirm against the grade-specific SDS (Section 14) before shipping.
Sodium sulfide (CAS 1313-82-2) is an alkaline inorganic sulfide. PubChem and HSDB document its use as a chemical intermediate, in leather processing as a dehairing (depilatory) agent, as a precipitating agent for heavy metals, in ore flotation, and as a pH-regulating and reducing agent. It is also used in pulp and dye manufacture.
Frequently Asked Questions
What is sodium sulfide used for?
Sodium sulfide (CAS 1313-82-2) is an alkaline inorganic sulfide used as a dehairing (depilatory) agent in leather tanning, as a precipitating agent for heavy metals in effluent treatment, and as a flotation/depressant agent in ore processing. It also serves as a reducing agent and sulfur source in chemical synthesis and in pulp and sulfur-dye manufacture.
Is sodium sulfide soluble in water?
Yes. Sodium sulfide is highly water-soluble and the resulting solution is strongly alkaline. It is commonly supplied as flakes or as a hydrated crystalline product; refer to the SDS for handling and storage requirements.
What is the formula for sodium sulfide?
The anhydrous compound is Na2S (CAS 1313-82-2), and it is frequently supplied in hydrated forms such as the nonahydrate. Each lot ships with a Certificate of Analysis stating assay and form.
How is sodium sulfide shipped under DOT regulations?
The hydrated material (not less than 30% water) is assigned UN 1849, Sodium sulfide, hydrated. Packaging, marking, and labeling follow the assigned hazard class; we coordinate compliant documentation for drum and bulk shipments. Always reference the SDS transport section.
What is the cost of bulk sodium sulfide?
Bulk sodium sulfide pricing varies with form (flake vs. hydrated), assay, and order volume. Submit a bulk RFQ with quantity and destination and we will return a current quote along with CoA and SDS.