Sodium sulfide, used mainly in the paper-making, dye, ore dressing, printing, and dyeing industries. Focus on packaging and transport, types 1 and 2 are packaged in iron drums that comply with safety requirements and the customer’s requirements; type 3 is also packaged in iron drums; net wet is 25, 50, and 150 kg; avoid sunlight, rain, and heat in transporting, and guard against damage.