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单词 pelargone
释义

pelargonen.

Brit. /ˈpɛləɡəʊn/, /pᵻˈlɑːɡəʊn/, U.S. /pəˈlɑrˌɡoʊn/
Origin: Formed within English, by derivation. Etymons: pelargonic adj., pelargonium n., -one suffix.
Etymology: < pelarg- (in either pelargonic adj. or pelargonium n.) + -one suffix.
Chemistry.
Any of several ketones derived from pelargonic acid or obtained from oil of pelargonium; spec. a solid ketone originally obtained from the dry distillation of barium pelargonate; dioctyl ketone, heptadeca-9-one, CH3(CH2)7·CO·(CH2)7CH3.
ΚΠ
1851 A. Cahours in Q. Jrnl. Chem. Soc. 3 242 This product, submitted to analysis, yielded numbers coinciding with the formula, C34H34O2. This substance is, therefore Pelargone, isomeric with margaric aldehyde.
1877 H. Watts Dict. Chem. (new ed.) IV. 370 Pelargone... C8H17.C9H17O. Octyl-pelargyl.—When pelargonate of barium is submitted to dry distillation, this compound passes over as a brown oil which solidifies on cooling.
1953 I. Heilbron & H. M. Bunbury Dict. Org. Compounds (rev. ed.) II. 397/2 Di-n-octyl Ketone (Pelargone, nonylone, heptadecanone-9).
1965 Analyt. Chem. 37 50R/1 Romanuk et al...isolated and elucidated the structure of pelargone.
This entry has been updated (OED Third Edition, September 2005; most recently modified version published online March 2022).
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n.1851
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