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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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