Chem., before a vowel sometimes sulphat-, a prefix in the name of a compound denoting that it contains a sulphate as an ingredient, as sulphato-acetic, -carbonate; sulphatoxide (see quot.); sulphatoxygen, an old name for the radical SO4.
1868. Watts, Dict. Chem., V. 571. *Sulphato-acetic Oxide or Anhydride.
1836. T. Thomson, Min., Geol., etc., 106. *Sulphato-carbonate of Barytes.
1855. Orr’s Circ. Sci., Geol., etc., 553. Connellite, *Sulphato-chloride of Copper.
1844. Hoblyn, Dict. Terms Med. (ed. 2), Sulphatoxygen. According to the new view of compound radicals, this body is the sulphate radical of sulphate of soda, the oxygen of the soda being referred to the acid; its compounds are termed *sulphatoxides.
1839–47. Todd’s Cycl. Anat., III. 151/2. A new compound radical, *sulphatoxygen, consisting of 1 part of sulphur with 4 of oxygen.
