persulphateyoudaoicibaDictYouDict[persulphate 词源字典]
"Originally: a sulphate containing a high proportion of sulphate ions. Now: a salt or ester of persulphuric acid", Early 19th cent.; earliest use found in Annals of Philosophy. From per- + sulphate.[persulphate etymology, persulphate origin, 英语词源]