Sodium Sulphide • Molecular formula: Na2S • Specification: Items Specification 1500PPMs sodium sulphide Na 2 S e60% Water Insoluble d0.4% Fe d0.15% Na 2 CO3 d5% 150PPM sodium sulphide with low iron Na2S e60% Water Insoluble d0.2% Fe d0.015% Na 2 CO3 d2% 80PPM/ 50PPM sodium sulphide with low iron Na2S e60% Water Insoluble d0.2% Fe d0.008/ 0.005% Na 2 CO3 d2% 30PPM/ 20PPM sodium sulphide with low iron Na2S e60% Water Insoluble d0.05/ 0.03% Fe d0.003/ 0.002% Na 2 CO3 d2% • Packing: 25kg weaving bag.