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

单词	indigo-white
释义	indigo-white Chem. Reduced or deoxidized indigo, C₁₆H₁₂N₂O₂, also called leucindigo, a white crystalline powder produced by subjecting commercial indigo to the action of a reducing agent, as an alkaline fluid; it is re-converted by oxidation to indigo-blue. Formerly supposed to exist ready-formed in indigoferous plants (see quot. 1850), (whence the former name indigogen); but now known to be formed from the natural glucoside, indican, by the agency of a special bacillus. [1850Daubeny Atom. Th. viii. (ed. 2) 237 Indigo is extracted from a variety of plants, in which it exists in a colourless form, constituting what is called white indigo, which becomes blue on exposure to light and air.]1874Schorlemmer Org. Chem. 426 Hydro-indigotin or Indigo-white stands in the same relation to indigotin as hydrazobenzene to azobenzene... Indigo-white is a crystalline white powder.1875Ure's Dict. Arts II. 907 When an excess of some acid is added to the yellow solution, the indigo-white is precipitated in white or greyish-white flocks.
随便看	under-chosen undercircle under-citizen underclad underclass underclassman underclay under-clerk undercliff underclift undercloak underclose undercloth underclothe underclothed underclothes underclothing underclub undercoat undercoate under-collector under-colour under-coloured under-commander under-condition

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