SODIUM SULPHIDE
硫 化 钠

Characteristics: Thin flakes, yellow or red, soluble water, presenting strong alkaline solution, easily oxidized when exposed to air, poison.

Molecular Formula: Na2S

Specification：
Fe 10ppm max 15ppm max 20ppm max 30ppm max
Na2S 60%min. 60%min. 60%min. 60%min.
Water insolubles 0.03%max. 0.05%max. 0.10%max. 0.18%max.
Na2CO3 1.80%max. 1.80%max. 1.80%max. 1.80%max.
Na2SO3 1.00%max. 1.80%max. 1.80%max. 1.80%max.
Na2S2O3 2.00%max. 2.00%max. 2.00%max. 2.00%max.
Colour Yellow Yellow Yellow Yellow

Fe 50ppm max 80ppm max 150ppm max 1500ppm max
Na2S 60%min. 60%min. 60%min. 60%min.
Water insolubles 0.18%max. 0.20%max. 0.30%max. 0.40%max.
Na2CO3 1.80%max. 2.00%max. 3.00%max. 5.00%max.
Na2SO3 2.00%max. 2.00%max. 2.00%max. 2.00%max.
Na2S2O3 2.00%max. 2.00%max. 2.00%max. 2.00%max.
Colour Yellow Yellow Yellow Red

Uses: used as making sulphur dyestuff intermediate reducer, mordant, flotation agent, depilatory for leather, digestion auxiliary in paper-making also widely used in pigment and rubber industry, etc.

Packing:
in 25KG woven bags Or in 150KG iron drum (1500ppm)