Industrial Sodium Sulfide Flakes Na2S 78.04 Molecular Weight for Dye Manufacturing and Metal Treatment

Sodium Sulfide (Na2S) is a strong alkaline inorganic compound commonly known as stinky alkali, stinky soda, or yellow alkali. This industrial chemical appears as crystalline flakes with colors ranging from pink to brownish-red and earthy yellow due to impurities. The material is highly hygroscopic, easily soluble in water, and exhibits strong alkaline properties with a pH of 12.

• Dye Manufacturing: Primary raw material for sulfurized dyes including sulfur blue varieties
• Textile Processing: Dyeing aid for sulfurized dyes and mordant for cotton fabrics
• Leather Production: Hydrolysis agent for hide depilation and preparation of sodium polysulfide
• Paper Industry: Cooking agent for paper pulp processing
• Metal Treatment: Improves surface quality in aluminum alloy etching and removes heavy metal impurities
• Electroplating: Forms conductive palladium sulfide layers in direct electroplating applications
• Chemical Synthesis: Production of sodium thiosulfate, sodium hydrosulfide, and pharmaceutical intermediates

Handle with appropriate protective equipment. Sodium sulfide is strongly alkaline and can cause skin and hair burns upon contact. The material undergoes deliquescence and carbonation in air, releasing hydrogen sulfide gas. Store in sealed containers away from moisture.