What is Sodium sulfide CAS 1313-82-2?
Sodium sulfide CAS 1313-82-2 is a strongly alkaline inorganic sulfide salt notable for its high solubility in water and release of sulfide ions in aqueous solution. It is commonly encountered as yellowish crystalline flakes or powder and emits a characteristic rotten-egg odor due to the presence of reduced sulfur species. Its chemical reactivity and sulfide-providing capability make it valuable as a reagent, intermediate, and functional additive in various industrial and chemical manufacturing processes.
Specification
| Item |
Value |
| Appearance |
Yellow crystalline flakes |
| Density |
1.86 g/mL at 25 °C |
| Solubility |
950 °C |
| Storage conditions |
Store in a cool, dry, well-ventilated area, protected from acids and oxidizers |
Feature
- High Sulfide Ion Source– Releases sulfide ions upon dissolution, useful for chemical synthesis, reduction reactions, and sulfide incorporation.
- Strong Alkalinity– Solutions are strongly alkaline, supporting pH-dependent reactions, depilation, and process chemistry.
- Industrial Intermediate Utility– Functions as a key intermediate in sulfur dye production, pulp cooking, and flotation agents.
- Reactive Reducing Agent– Used in reduction processes in organic and inorganic chemistry applications.
Application
- Pulp & Paper Processing– Used in the kraft pulping process to break down lignin and facilitate wood fiber separation.
- Leather Industry– Employed as a depilatory agent for hair removal and hide preparation.
- Dye & Pigment Manufacturing– Applied in the production of sulfur dyes and as a reducing additive in dye intermediates.
- Mineral Flotation– Functions as a depressant or desorption agent in non-metallic ore flotation processes.
Packaging
Mikem offers flexible packaging options, including 25 kg of fiber drums for liquid products and 15–25 kg PP/PE bags for powder products, all customizable to meet your specific needs.