提高二氧化硫脲在Ni^(2+)-NH_3反应体系中利用率研究

Study the utilization of thiourea dioxide on the reaction of Ni^(2+)-NH_3 with thiourea dioxide

研究了温度、酸度在二氧化硫脲与Ni2+-NH3反应体系中的影响,得出升高温度、增加pH值均有利于提高二氧化硫脲的利用率,降低生产成本;同时探讨了该体系反应机理,指出体系同时存在相互竞争的单电子反应和双电子反应,改变温度和酸度影响了反应的历程。

The influence of temperature and pH value on the reaction of Ni^2＋ -NH3 with thiourea dioxide was studied. The utilization of thiourea dioxide increases as raising temperature and pH value. The reaction mechanism of this system was suggested . The reaction of thiourea dioxide with Ni^2＋ - NH3 exits simultaneously one - electron reaction and two - electron reaction. The changes on temperature and the pH value have affected the response course.