PROPERTY: Yellow flakes, easily being oxidized and deliquescent in air; dissolving in water showing strong alk Product:Sodium Sulphide 60%min,na2s,sodium sulfideProperty:Thin flakes,yellow or red, soluble water,presenting strong alkaline solution, easily oxidized when exposed to air, poison. Specification:FeNa2SWater insolubleNa2CO3Na2SO3Na2S2O3color15ppm Max60%min.0.05%max1.80%max1.80%Max2.00% ...