bromine

A catalyst system of ZnBr2-quaternary onium tribromide salt has been developed for the coupling reaction of carbon dioxide and epoxides.

研究了溴化锌-季鎓三溴盐催化二氧化碳和环氧化合物偶联反应,考察了反应温度、压力和不同金属盐对反应的影响以及催化剂的循环使用性能。

The results showed that both dialkyl quaternary ammonium salts can restrain the growth of aeromonas hydrophila and flexibacter colnmnaris,and the short one was more effective than the long one while comparing their inhibiting effects to aquatic pathogenic bacteria.

以溴代烷烃为原料制备了两种不同链长的双烷基季铵溴盐,并用试管两倍稀释法进行了抑制水产动物病原菌的生长实验。

Inhibition effect of several dialkyl quaternary ammonium salts on aquatic pathogenic bacteria was tested by double dilution method in tubes.

结果表明,双烷基季铵盐对嗜水气单胞菌和柱状屈桡杆菌生长均具有一定抑制作用,且短链双烷基季铵溴盐比长链的抑菌效果好。