Product:Sodium sulphide Molecular Formula:Na2S Specification: Fe 5ppm max 10ppm max 15ppm max 20ppm max 30ppm max Na2S 60%min. 60%min. 60%min. 60%min. 60%min. Water insolubles 0.03%max. 0.03%max. 0.05%max. 0.10%max. 0.18%max. Na2CO3 1.80%max. 1.80%max. 1.80%max. 1.80%max. 1.80%max. Na2SO3 1.00%max. 1.00%max. 1.80%max. 1.80%max. 1.80%max. Na2S2O3 2.00%max. 2.00%max. 2.00%max. 2.00%max. 2.00%max. Colour Yellow Fe 50ppm max 60ppm max 80ppm max 150ppm max 1500ppm max Na2S 60%min. 60%min. 60%min. 60%min. 60%min. Water insolubles 0.18%max. 0.18%max. 0.20%max. 0.30%max. 0.40%max. Na2CO3 1.80%max. 1.80%max. 2.00%max. 3.00%max. 5.00%max. Na2SO3 2.00%max. 2.00%max. 2.00%max. 2.00%max. 2.00%max. Na2S2O3 2.00%max. 2.00%max. 2.00%max. 2.00%max. 2.00%max. Colour YellowRed Packing:Plastic woven with inner 25kgs net bag or 1000kgs bag Uses:Used as making sulphur dyestuff intermediate reducer,mordant,flotation agent,depilatory for leather,digestion auxiliary in paper-making also widely used in pigment and rubber industry etc. Our main items moreover include Sodium hydrosulphide,Oxalic acid,Sodium formate,Ammonium chloride,Formic acid,Calcium formate,Zinc chloride,Ammonium bicarbonate,Sodium metabisulphite,Aluminium sulphate,Alum and Humate salt series etc. and the quality of our products widely enjoy high reputation both at home and abroad. We will always adhere to the honest and credible managing style, and remain the most reliable partner of customers.please feel free to contact us if you are interested in it,and your inquiry will alwaysmeet our prompt reply!