Sodium Sulfide: Production, Handling, and Industrial Value
Sodium Sulfide (Na₂S) is a yellow, water-soluble inorganic compound that plays an important role in numerous industries. It is usually produced by reducing sodium sulfate with carbon at high temperatures or through the reaction of sodium hydroxide with hydrogen sulfide.
The resulting product is available in solid flake or crystal form. The compound's high solubility and reducing capability make it valuable for industrial chemical reactions.
Key Industrial Applications:
Leather Industry: Sodium sulfide is indispensable for unhairing hides during tanning. It helps dissolve keratin and other proteins, ensuring smooth leather preparation.
Pulp & Paper: Used in the Kraft process to separate cellulose fibers and remove lignin, enhancing paper strength and brightness.
Textile Dyeing: Serves as a desulfurizing and bleaching agent for synthetic fibers.
Mining & Metallurgy: Aids in flotation and recovery of metals like copper, zinc, and molybdenum.
Water Treatment: Precipitates heavy metals and neutralizes acidic wastewater.
Physical Properties:
Formula: Na₂S
Appearance: Yellow to reddish flakes
Odor: Hydrogen sulfide-like smell
Solubility: Fully soluble in water
Handling and Storage:
Sodium sulfide should be stored in a cool, dry area, away from acids and moisture. It reacts with water to produce hydrogen sulfide, which is toxic in high concentrations. Workers should wear gloves, goggles, and protective clothing.
With its wide industrial reach and strong reducing properties, sodium sulfide remains a cost-effective and versatile material for global manufacturing.
For detailed specifications and quotations, please contact:
Kitty Liu | Sales Manager
Dongguan Weiqi Chemical Co., Ltd.
📱 Cel/Wechat: +86 138 2440 4576
📧 Email: kitty@weiqichem.com