Sodium sulfideCAS No. : 1313-82-2EINECS NO.: 215-212-0 MF : Na2SPurity : ≥60%Appearance : Yellow flakeNature :1.Absorption of moisture, soluble in water, Aqueous solution is strongly alkaline reaction, cause burns when touch the skin and hair.2.Sodium sulfide solution will slowly oxidation into sodium thiosulfate, sodium sulfite, sodium sulfate and sodium sulfide in the air.Quality index :Test items Test standards Test resultsContent Of Na2S≥60%62%Content Of Na2SO3≤5.0%...