Blue vitriol

Blue vitriol
Vitriol Vit"ri*ol, n. [F. vitriol; cf. Pr. vitriol, vetriol, Sp. & Pg. vitriolo, It. vitriuolo; fr. L. vitreolus of glass, vitreus vitreous. See {Vitreous}.] (Chem.) (a) A sulphate of any one of certain metals, as copper, iron, zinc, cobalt. So called on account of the glassy appearance or luster. (b) Sulphuric acid; -- called also {oil of vitriol}. So called because first made by the distillation of green vitriol. See {Sulphuric acid}, under {Sulphuric}. [Colloq.] [1913 Webster]

{Blue vitriol}. See under {Blue}.

{Green vitriol}, ferrous sulphate; copperas. See under {Green}.

{Oil of vitriol}, sulphuric or vitriolic acid; -- popularly so called because it has the consistency of oil.

{Red vitriol}, a native sulphate of cobalt.

{Vitriol of Mars}, ferric sulphate, a white crystalline substance which dissolves in water, forming a red solution.

{White vitriol}, zinc sulphate, a white crystalline substance used in medicine and in dyeing. It is usually obtained by dissolving zinc in sulphuric acid, or by roasting and oxidizing certain zinc ores. Formerly called also {vitriol of zinc}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • Blue vitriol — Blue Blue (bl[=u]), a. [Compar. {Bluer} (bl[=u] [ e]r); superl. {Bluest}.] [OE. bla, blo, blew, blue, livid, black, fr. Icel.bl[=a]r livid; akin to Dan. blaa blue, Sw. bl[*a], D. blauw, OHG. bl[=a]o, G. blau; but influenced in form by F. bleu,… …   The Collaborative International Dictionary of English

  • blue vitriol — n. 1. CHALCANTHITE 2. COPPER SULFATE …   English World dictionary

  • blue vitriol — blue′ vit′riol n. chem. mir a hydrous copper sulfate, CuSO4∙5H2O • Etymology: 1760–70 …   From formal English to slang

  • blue vitriol — Chem., Mineral. a salt, copper sulfate, CuSO4·5H2O, occurring naturally as large transparent, deep blue triclinic crystals, appearing in its anhydrous state as a white powder: used chiefly as a mordant, insecticide, fungicide, and in engraving.… …   Universalium

  • blue vitriol — noun hydrated blue crystalline form of copper sulfate • Syn: ↑blue copperas, ↑blue stone, ↑chalcanthite • Hypernyms: ↑copper sulfate, ↑copper sulphate, ↑cupric sulfate, ↑cupric sulphate …   Useful english dictionary

  • blue-vitriol — n. Sulphate of copper, blue stone …   New dictionary of synonyms

  • blue vitriol — /blu ˈvɪtriəl/ (say blooh vitreeuhl) noun the hydrated sulphate of copper, CuSO4.5H2O, a compound occurring in large, transparent, deep blue triclinic crystals …  

  • blue vitriol — noun Date: 1728 a hydrated copper sulfate CuSO4•5H2O …   New Collegiate Dictionary

  • blue vitriol — n. copper sulfate …   English contemporary dictionary

  • blue vitriol — noun archaic crystalline copper sulphate …   English new terms dictionary

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