... 80ppm,150ppm,1500ppm 4.100% gurantee sodium sulfideyellow or red flakes 10ppm,20ppm,30ppm,80ppm,150ppm,1500ppmMolecular formula:Na2SHS ... 2830101000Class No.:8UN NO.:1849Property:Thin flakes,yellow or red,soluble in water,presenting strong alkaline solution,easily oxidized when exposed ... to air,poison.Packing:in 25kg plastic woven bags,or 900kg jumbo bagsUsage:used ...