sulfate (n.)youdaoicibaDictYouDict[sulfate 词源字典]
salt of sulfuric acid, 1790 (sulphat), from French sulphate (1787), from Modern Latin sulphatum acidum, from Latin sulpur, sulphur (see sulfur) + chemical ending -ate (3). The spelling with -ph- is standard in Britain.[sulfate etymology, sulfate origin, 英语词源]