In accordance with the market demand of sodium sulphide at home and abroad in recent years,a new product, the high purity white sodium sulphide crystal with concentration of 45% Na_2S was prepared.

• 针对近几年国内外硫化碱市场需求,研制出了一种硫化钠质量分数为45%25左右的白色高纯结晶硫化钠新产品。