二氧化硫脲1758-73-2

二氧化硫脲，别名甲脒亚磺酸（FAS，CAS：1758-73-2），是性能优异的有机还原剂。本品为白色无味结晶粉末，微溶于水，水溶液呈弱酸性，受热超过 126℃会分解放热；相比保险粉，热稳定性更好、不易自燃、储存运输更安全，还原电位高。广泛用于纺织印染：还原染料染色、拔染印花、羊毛和蚕丝漂白；造纸行业用于纸浆漂白、废纸脱墨；废水处理还原降解六价铬；有机合成用作脱色、还原试剂；也用作感光材料助剂、高分子稳定剂。25kg 密封包装，阴凉干燥通风存放，防潮、远离热源。

  Thiourea dioxide (FAS, CAS 1758-73-2) is a high-efficiency reducing agent. It is white odorless crystalline powder, slightly soluble in water. It is a stable substitute for sodium hydrosulfite. Widely used in textile discharge printing, wool bleaching, pulp bleaching, wastewater treatment and organic synthesis. Store in cool, dry and ventilated place.