| 单词 | tri-nitro carbolic acid |
| 释义 | > as lemmastri-nitro carbolic acid 1. A formative denoting that three nitro-groups, NO2, have replaced three hydrogen atoms in the substance designated by the rest of the name, the nitrogen atoms being directly joined to carbon atoms; e.g. trinitrophenol n. or picric acid, C6H2(NO2)3(OH), in which three H atoms of phenol have been replaced by three NO2 groups, the N atoms directly joined to three C atoms. So trinitrocresol n. C6H(CH3)(OH)(NO2)3, from cresol. trinitronaphthalene n. C10H5(NO2)3 from naphthalene, C10H8, etc. Also attributive, as tri-nitro carbolic acid. ΚΠ 1851 Q. Jrnl. Chem. Soc. 3 75 A third compound is formed, in which 3 eq. of hydrogen are replaced by hyponitric acid: this is Trinitranisol. 1869 H. E. Roscoe Lessons Elem. Chem. (new ed.) xxxix. 381 Tri-nitro-phenol [1866, xxxix. 336 tri-nitro carbolic acid], or picric acid, is a bright yellow crystalline body. < as lemmas |
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