“triamide”的英文意思_释义_用法

单词

triamide

释义

triamide Chem.|ˈtraɪəmaɪd|
[f. tri- 5 a + amide.]
A compound in which the three acid hydroxyls (OH) of a tribasic acid are replaced by three amidogen groups (NH₂): the hydrogen of the amidogen groups may be replaced by metals or by one or more monovalent radicals; e.g. citramide, C₃H₄(OH)(CO.NH₂)₃, the triamide of citric acid, C₃H₄(OH)(CO.OH)₃; cyanuramide or melamine, C₃N₃(NH₂)₃, the triamide of cyanuric acid, C₃N₃(OH)₃. For the earlier view of the structure of triamides, see quot. 1863–72.
1862Miller Elem. Chem. (ed. 2) III. 427 As an instance of a secondary triamide, phenylcitramide may be given.1863–72Watts Dict. Chem. I. 173 Primary Triamides.—They represent 3 molecules of ammonia, in which 3 atoms of hydrogen are replaced by a triatomic acid-radicle:—Phosphamide..N³.(PO){ppp}.H₆.1866Odling Anim. Chem. 19 C₃N₃(H₂N)₃ Cyanuric triamide.

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