英语词汇“pyropectic acid”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

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pyropectic acid

pyropectic adj.

Brit.

/ˌpʌɪrə(ʊ)ˈpɛktɪk/

U.S.

/ˌpaɪroʊˈpɛktɪk/

[after French pyropectique (in acide pyropectique, E. Frémy 1848, in Ann. de chimie et de physique 3rd. Ser. 24 39)] now rare pyropectic acid a black, acidic substance produced by heating pectin (not identified).

ΚΠ

1853 D. Breed tr. C. Löwig Princ. Org. & Physiol. Chem. 446 Pyropectic Acid: C₁₄H₉O₉, is formed with carbonic acid and water, if pectin or metapectin be exposed to a temperature of 200°.

1924 L. W. Tarr in R. H. Bogue Theory & Applic. Colloidal Behavior II. xxvi. 607 And, finally, by heating pectic acid to 200°C., pyropectic acid was formed.

extracted from pyro-comb. form

as lemmas

单词	pyropectic acid
释义	> as lemmas pyropectic acid pyropectic adj. Brit. /ˌpʌɪrə(ʊ)ˈpɛktɪk/ , U.S. /ˌpaɪroʊˈpɛktɪk/ [after French pyropectique (in acide pyropectique, E. Frémy 1848, in Ann. de chimie et de physique 3rd. Ser. 24 39)] now rare pyropectic acid a black, acidic substance produced by heating pectin (not identified). ΚΠ 1853 D. Breed tr. C. Löwig Princ. Org. & Physiol. Chem. 446 Pyropectic Acid: C₁₄H₉O₉, is formed with carbonic acid and water, if pectin or metapectin be exposed to a temperature of 200°. 1924 L. W. Tarr in R. H. Bogue Theory & Applic. Colloidal Behavior II. xxvi. 607 And, finally, by heating pectic acid to 200°C., pyropectic acid was formed. extracted from pyro-comb. form < as lemmas
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