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单词 paramaleic acid
释义

> as lemmas

paramaleic acid
paramaleic adj. [ < para- prefix1 + maleic adj., after French para-maléique (T. J. Pelouze 1834, in Ann. de chim. et de physique 56 74)] Obsolete rare paramaleic acid = fumaric acid n. at fumarin n. Derivatives.
ΚΠ
1838 T. Thomson Chem. Org. Bodies 54 When malic acid is distilled at the temperature of 349°, it is resolved into water, and two pyro-acids, which are isomeric. These acids have been distinguished by the names of equisetic or maleic, and fumaric or paramaleic acid.
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更新时间:2024/9/21 5:40:27