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Mining Chemicals

SODIUM SULFIDE                                                     
CAS NO.  1313-82-2                                                 
Molecular formula:Na2S
Molecular weight:78.04
UN code:1849

Characteristic: Pure product is brown red flake. Because of impurities, industrial sodium sulfide is pink, brown red or clay yellow matter. moreover, its Sg, BP, MP are different according to impurities.

Specifications:

1)Common Red Flake---1500ppm

Item Standard
Na2S 60%min
Na2CO3 5.0%max
Water insoluble 0.40%max
Fe 0.15%max

2) Low Ferric Sodium Sulfide (yellow Flake)---150ppm

Item Standard
Na2S 60%min
Na2CO3 2.0%max
Water insoluble 0.20%max
Fe 0.015%max

3) Low Ferric Sodium Sulfide (yellow Flake)---50/80ppm

Item Standard
Na2S 60%min
Na2CO3 2.0%max
Water insoluble 0.20%max
Fe 0.005-0.008%

4) Low Ferric Sodium Sulfide (yellow Flake)---20/30ppm

Item Standard
Na2S 60%min
Na2CO3 2.0%max
Water insoluble 0.20%max
Fe 0.002-0.003%

5) Low Ferric Sodium Sulfide (yellow Flake)---10/15ppm

Item Standard
Na2S 60%min
Na2CO3 1.8%max
Water insoluble 0.03%max
Fe 0.0010-0.0015%

6) Low Ferric Sodium Sulfide (yellow Flake)---5ppm

Item Standard
Na2S 60%min
Na2CO3 1.7%max
Water insoluble 0.02%max
Fe 0.0005%max

Package: 25/50kg N.W. in knitted bag lined with PVC bag         

Application:                                                         

It can be used in sulfur dye, reductant of dye intermediate, mordant, flotation agent of ore, depilation agent of leather, paper cooking agent. Moreover, it is widely used in textile, pigment and rubber industry, or used in the production of sodium thiosulfate, sodium polysulfide and sodium hydrosulphide.

 



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