Sodium Sulfide Manufacturing Process and Quality Control
Sodium Sulfide, a versatile inorganic compound, is typically produced through two main processes: reduction of sodium sulfate with carbon or reaction of sodium hydroxide with hydrogen sulfide gas. The final product is obtained in flake form, ready for industrial use.
During production, strict quality control ensures the removal of impurities such as sodium thiosulfate and polysulfides. High-purity sodium sulfide (≥60%) ensures better performance in downstream applications.
Key Applications:
Leather tanning (hair removal and deliming)
Kraft paper pulping
Textile dyeing and desulfurizing
Ore flotation in non-ferrous metallurgy
Water treatment for heavy metal removal
Quality Indicators:
Purity: 60% min
Appearance: Yellow or red flakes
Solubility: Fully soluble in water
pH: 12–13 (1% solution)
Packaging & Transportation:
Sodium sulfide is packed in 25kg or 50kg plastic-lined bags to prevent moisture absorption. During transport, it should be kept away from acids and oxidizing agents.
Safety Tip:
When handling sodium sulfide, avoid exposure to moisture or acidic conditions. Hydrogen sulfide gas formed by reaction is hazardous; use in ventilated areas.
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