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1. sodium sulphide 50% yellow flakes fe 50ppm

PURITY: 50%
FERRIC: 50 PPM

2. crystal sodium sulphide

Specification of crystal sodium sulphide
No. Index Name Index
1 Na2S(%) 43.0Min
2 /Na2SO3+Na2S2O3(%) 1.0Max
3 Fe(%) 0.001max
4 Appearance Cyan grain

3. sodium sulphide 60% yellow flakes fe 10ppm-- 150ppm

Specification of sodium sulphide with low ferric
15PPM/10PPM sodium sulphide with low iron
No. Index Name Index
1 Na2S(%) 60.0Min
2 Na2CO3(%) 1.8Max
3 Water Insoluble(%) 0.03max
4 Fe(%) 0.0015max 0.0010max

30PPM/20PPM sodium ...

4. sodium sulphide 60% red flakes fe 1500ppm

specification of common sodium sulphide /red flakes
No Index Name Index
1 Na2S(%) 60.0Min
2 Na2CO3(%) 5.0Max
3 Na2SO3+Na2S2O3(%) 0.4Max
4 Water Insoluble(%) 0.4Max
5 Fe(%) 0.15Max(1500ppm)
Availability mainly used in super leather-making,pha ...