Many sulphates have a tendency to form doublesalts.
很多硫酸盐有形成复盐的趋势。
2
Insoluble salts are prepared by double decomposition.
不可溶盐可以通过双分解制备。
3
Double settling is used instead of double salting out, and less flocculant to replace large amounts of common salts required, thus the treatment of the waste is largely simplified.