a glass beaker containing copper sulphate solution盛有硫酸铜溶液的玻璃烧杯The disulphate was easily soluble in water.焦硫酸盐易溶于水。Adding sulphate to the solution will give a precipitate.将硫酸盐加入该溶液会产生沉淀。More ammonium sulphate solution is being recovered in the process of distilling oil shale.在提炼油页岩的过程中回收的硫酸铵液比过去多了。