Sodium sulfide, NA2S, competitve price, good quality, prompt shipment, supply guarantee, monthly exports1000mt. NA2S,Sodium Sulphide Flake 60%min ,Red Flake, iron content 1200PPM, 1500PPM 1)Specifications 50ppm80ppm150ppm1500ppmNa2S60min60min60min60minNa2SO32.00max2 ... relationship with domestic manufactuers,has exported it to many countries. sodium sulfide, Fe 1500PPM