【摘要】 <正> 二氧化硫脲(TD)可作为纺织、印染、造纸工业的高效还原剂,但有关它的碱性溶液性质报道不多,为拓宽二氧化硫脲在无机、有机合成、湿法冶金及其他方面的应用,本文采用电势法研究 TD 溶液的性质.ZD-3型自动电位滴定仪,XWT-S 型台式记录仪,pH-4型酸度计,78-1型磁力加热搅拌更多还原

【Abstract】 The properties of thiourea dioxide(TD)in solution were studied by potentiomet- ric method.By analyzing the potential-time curves of various TD solutions with different pH and temperature,it was found that the pH value and temperature deeply affect the structure, reducing power and stability of TD solutions.TD is very stable in neutral solutions at room temperature.With the increase of basicity and temperature,the concentration of the tau- tomer B and the reducing power of TD solutions were enhanced,while the stability of TD decreased.更多还原