Sodium Sulphydrate 70% 30ppm value
NaHS(purity) 70% min
Na2S(sodium sulfide) 3% max
Na2CO3 1 % max
Matter insoluble 0.01% max

Sodium Sulphydrate 70% 20ppm value
NaHS(purity) 70% min
Na2S(sodium sulfide) 3% max
Na2CO3 1 % max
Matter insoluble 0.01% max

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USAGE:

1. industrial dye: in organic synthesis and with the preparation of the additives sulfur dyes
2. water treatment: to subside the heavy metal ions, use the NAHS as vulcanizing agent to remove the arsenic from acid wastewater.

3. in the ore floatation industry: to make the copper convert into copper sulphide and cuprous sulfide in the flotation of copper ore, it can use flotation process
4. in the leather: to remove the hair and tannage
5. in the fertilizer industry : to produce acid ammonium sulfide
6. in the process of artificial fibre: to make sulfurous acid dyeing.
7. in the paper making, as a makeup chemical for sulphur used in the kraft.
Etc.

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