Benzyl butyrate was synthesized by using potassium bisulfate as the catalyst.以硫酸氢钾为催化剂,丁酸和苄醇为原料合成丁酸苄酯.Isoamyl butyrate was synthesized by using potassium bisulfate as the catalyst.以硫酸氢钾为催化剂,正丁酸和异戊醇为原料合成了正丁酸异戊酯.Ethyl lact...
Objective To study the catalytic activity of potassium bisulfate in synthesizing hexyl hexanoate.目的研究硫酸氢钾在合成己酸己酯工艺中的催化性能.Isoamyl butyrate was synthesized by using potassium bisulfate as the catalyst.以硫酸氢钾为催化剂,正丁酸和异戊醇为原料合...
This gel gives a beautiful shine to the hair.这种发胶会使头发看上去有亮丽的光泽。shower gel containing plant extracts that have a stimulating effect on the skin含有对皮肤有益的植物精华的沐浴凝胶My ideas are beginning to gel.我的想法逐渐形成了....
A snowdrift blocked his path.雪堆阻碍他的去路.The train ran into a snowdrift.火车开进了雪堆.Two huge , hairy ears stuck up above the snowdrift.一对偌大的, 毛茸茸的耳朵竖起在雪堆上....