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单词 nitrating
释义

nitratingn.

Brit. /nʌɪˈtreɪtɪŋ/, U.S. /ˈnaɪˌtreɪdɪŋ/
Origin: Formed within English, by derivation. Etymons: nitrate v., -ing suffix1.
Etymology: < nitrate v. + -ing suffix1. Compare earlier nitration n.2
Chemistry.
The process of nitrating a substance; nitration.Sometimes not easily distinguished from nitrating adj. nitrating mixture n. a combination of concentrated nitric and sulphuric acids, frequently used for nitration.
ΚΠ
1921 Science 12 Aug. 136/2 The vapor tension of nitric acid in the nitrating bath controls the degree of nitration of the nitrocellulose.
1972 Proc. Royal Soc. A. 328 446 Cyclohexane..was shaken repeatedly with nitrating mixture to remove trace amounts of aromatic impurities.
1981 P. Sykes Guidebk. to Mechanism in Org. Chem. (ed. 5) vi. 132 Preparative nitration is most frequently carried out with a mixture of concentrated nitric and sulphuric acids, the so-called nitrating mixture.
This is a new entry (OED Third Edition, December 2003; most recently modified version published online March 2022).

nitratingadj.

Brit. /nʌɪˈtreɪtɪŋ/, U.S. /ˈnaɪˌtreɪdɪŋ/
Origin: Formed within English, by derivation. Etymons: nitrate v., -ing suffix2.
Etymology: < nitrate v. + -ing suffix2.
Chemistry.
attributive. Designating a substance or agent used in or capable of bringing about the nitration of other substances.Sometimes not easily distinguished from nitrating n.
ΚΠ
1907 Science 1 Feb. 194/2 In its reactions benzoyl behaves as a nitrating agent, as an oxidizing agent, or as a means of introducing a benzoyle radicle.
1933 B. C. L. Kemp Elem. Org. Chem. x. 152 Concentrated nitric acid is an interesting substance in that it can react with organic compounds..as a nitrating agent, i.e. it introduces the nitro-group —NO2 into organic compounds, e.g. benzene.
1955 Proc. Royal Soc. A. 232 390 The nitrating acid contained 45% HNO3 and 55% H2SO4 by weight.
1991 Process Engin. Aug. 21/1 ICI has developed a process for the electrolytic production of dinitrogen pentoxide—a powerful nitrating agent.
This is a new entry (OED Third Edition, December 2003; most recently modified version published online March 2022).
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n.1921adj.1907
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