Objective: To prepare compound ammonium glycyrrhizinate gel.

摘要目的: 制备复方甘草酸铵凝胶剂.

互联网

Using positive, counter precipitation methods, the particle size of nickel oxalate adjusting temperature and value.

采用正 、 反沉淀方式, 将镍盐与草酸铵反应可制备出草酸镍沉淀颗粒,在真空条件下将草酸镍热分解可制得镍粉.

互联网