a glass beaker containing copper sulphate solution盛有硫酸銅溶液的玻璃燒杯The disulphate was easily soluble in water.焦硫酸鹽易溶于水。Adding sulphate to the solution will give a precipitate.將硫酸鹽加入該溶液會產生沉淀。More ammonium sulphate solution is being recovered in the process of distilling oil shale.在提煉油頁巖的過程中回收的硫酸銨液比過去多了。