| 单词 | trithiocarbonate |
| 释义 | > as lemmastrithiocarbonate Prefix denoting that three atoms of sulphur have been substituted for three atoms of oxygen in the substance designated by the rest of the name; e.g. trithiocarbonic acid, H2CS3, derived from carbonic acid, H2CO3; trithiocarbonate, a salt of this acid. In many cases, however, tri- refers to the whole substance and not to the sulphur alone; e.g. trithio-acetaldehyde, (CH3CHS)3, a compound of three molecules of thio-acetaldehyde, CH3CHS. ΚΠ 1894 H. F. Morley & M. M. P. Muir Watts' Dict. Chem. (rev. ed.) IV. 692 Tri-Thio-Citric Ether C3H5O(CO.SEt)3..Oil, smelling like mercaptan. 1899 E. F. Smith tr. V. von Richter Org. Chem. (ed. 3) I. 203 Trithio-formaldehyde (CH2S)3, melts at 216°. 1910 A. J. Walker & O. E. Mott tr. A. F. Holleman Text-bk. Org. Chem. (ed. 3) 348 Carbon disulphide..With alkali-metal or alkaline-earth-metal sulphides it yields trithiocarbonates. < as lemmas |
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