There are two main methods for producing sodium sulfide. The Glauber’s salt method involves mixing sodium sulfate and coal powder in a 1:0.5 ratio and heating them in a reverberatory furnace to 950°C, with continuous stirring to prevent clumping. The by-product hydrogen sulfide gas must be absorbed using an alkaline solution, and failure to meet exhaust gas treatment standards may result in fines from environmental authorities. The by-product method utilizes waste liquid from barium salt production, requiring five filtration steps. While this reduces costs by 30%, the purity can only reach 90%.

Sodium sulfide selects high-quality raw materials and strictly controls production through advanced technology, with high purity and minimal impurities, ensuring stable supply even for large orders. Click here to obtain high-quality and high-efficiency sodium sulfide.