Sodium sulfide Productproduct Sodium Sulphide yellow flakes 15ppmCAS No. 1313-82-2Molecular Formula: Na2Sapperance brown red flaky matter, pure sodium sulphide is colorless crystalline powder Sodium sulfide Specification FE 10ppm30ppm50ppm 150ppm 300ppm 1500ppm Na2S60%MIN 60%MIN 60%MIN 60%MIN 60%MIN Na2CO33%MAX 3%MAX 5%MAX 5%MAX 5%MAX Water Insoluble Matter0.2%MAX 0.2%MAX 0.2%MAX 0.2%MAX 0.4%MAX