Sodium sulphide yellow flake

Applications

‌‌1. Industrial Manufacturing‌

• ‌Dyes and Pigments‌: Acts as an intermediate in synthesizing sulfur dyes (e.g., sulfur blue and sulfur black) and metal sulfide pigments‌.
• ‌Pesticide Synthesis‌: Serves as a sulfurizing agent in agrochemical production, facilitating the synthesis of herbicides and insecticides‌.
• ‌Rubber Processing‌: Functions as a ‌vulcanizing agent‌ to enhance rubber elasticity and durability‌.

‌2. Wastewater and Pollutant Treatment‌

• ‌Heavy Metal Precipitation‌:Removes copper ions (Cu²⁺) by forming insoluble copper sulfide (CuS) for resource recovery‌.
• Treats mercury-contaminated wastewater by precipitating mercury sulfide (HgS)‌.
• ‌Fluoride Wastewater Purification‌: Participates in comprehensive treatment processes for fluoride-containing wastewater‌.

‌3. Chemical Raw Materials and Metallurgy‌

• ‌Metal Extraction‌: Used in processing sulfide ores for extracting precious metals (e.g., gold, silver)‌.
• ‌Surface Treatment‌: Functions as a ‌reducing agent‌ to prevent oxidation and corrosion on metal surfaces‌.

‌4. Other Applications‌

• ‌Laboratory Reagent‌: Employed as a strong alkaline reagent in hydrolysis and sulfurization reactions‌.
• ‌Pharmaceutical Intermediates‌: Indirectly used in synthesizing sulfur-containing drugs (e.g., phenacetin) or raw materials like methionine‌.
• ‌Paper Industry‌: Serves as a cooking agent in high-grade paper production‌.
• ‌Textile Industry‌: Acts as a mordant in dyeing cotton fabrics and aids in denitrification of synthetic fibers.‌‌

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Specification