タイトルまたは説明

Molecular formula: Na2S Molecular weight: *8.*4 Property: Flakes, yellow or red color, soluble in water, presenting strong alkaline solution, easily oxidized when exposed to air. Aplication: Used in sulfur dyes, used as reductant, mordant, floatation agent, depilatory for leather, digestion auxiliary in paper-making, and used in textile, pigment and rubber too. Specification: Yellow flakes Na2S(%): *0.0Min. Na2CO3(%): 2.0Max. Water Insoluble(%): 0.*5Max. Fe(%): 0.**3Max.