In some cases, if the salt solution of the metal ion content for simpleion, the coating, therefore, coarse grains to adopt complexation ion of plating solution.
有些情况下﹐若镀液中主盐的金属离子为简单离子时﹐则镀层晶粒粗大﹐因此﹐要采用络合离子的镀液。
2
The new method in the determination of negative ion surface-active agent is introduced, comparing with methylene blue method, it have merits of simple operation step and little dosage.
介绍了水中阴离子表面活性剂测定新方法，该法与亚甲蓝法比较，具有操作步骤简单，萃取剂用量少的优点。
3
Using the definition and calculation formula of distribution coefficients, the deduction of the hydrogen ion concentration in solutions will be simple, clear and exact.