Azone is synthesized with caprolactam and 1 - bromododecane by phase transfer catalysis, the yield is > 70 %.以己内酰胺、澳代十二烷为原抖,采用相转移催化法合成氮酮, 收率达到70%以上.A wide | bore capillary was employed to determine caprolactam content.利用...
A wide | bore capillary was employed to determine caprolactam content.利用大口径柱测试己内酰胺生产中己内酰胺含量.This preparation uses dialkyl imidazole salt, alkyl pyridine salt or caprolactam and fatty acid as reactant.该方法使用带有二烷基咪唑盐 、 烷基吡啶...
雾霭蒙蒙，白金汉宫若隐若现。Mist shrouded the outline of Buckingham Palace.蒙蒙雾霭笼罩着山谷,遮掩了群山.Heavy mists hung in the valley and obscured the mountains.笼罩山谷的雾霭散去了.The mist shrouding the walley had lifted....