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:Sodium sulphide red flake
1) Na2S: &gr;60%
2) Fe: ≤0.15% (1,500ppm)
3) Na2CO3: ≤5.0%
4) Water insoluble: ≤0.4%
Sodium sulphide yellow flake low iron:
1) Na2S: ≥60%
2) Fe:
a) ≤0.015% (150ppm)
b) ≤0.012% (120ppm)
c) ≤0.01% (100ppm)
d) ≤0.008% (80ppm)
e) ≤0.005% (50ppm)
f) ≤0.003% (30ppm)
g) ≤0.0010% (10ppm)
3) Na2CO3: ≤2.0%
4) Na2SO3: ≤2.00%
5) Na2S2O3:≤2.00%
6) Water insoluble: ≤0.2%
Uses:
Used as making sulphur dyes or dyestuff intermediate reducers,mordant, flotation agent, depilatory for leather, digestionauxiliary in paper-making, also widely used in pigment and rubberindustry.
Packing:
25kg plastic woven bag or 150kg iron drum
