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hydrofluoric acid |
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hydrofluoric acid /hy·dro·flu·o·ric ac·id/ (-floor´ik) a gaseous haloid acid, HF, extremely poisonous and corrosive. hydrofluoric acid [hī′drōfloo͡r′ik] a term applied to aqueous solutions of hydrogen fluoride, an organic acid used in dilute solutions for cleaning and etching. It is extremely poisonous, as well as corrosive to the skin. hydrofluoric acid, n a compound consisting of hydrogen and flourine. It is a very active, corrosive compound, used to etch glass and precious metals. hydrofluoric acid a glass etching agent; is in the effluent gases from some industrial plants making bricks, pottery, working aluminum. Creates a toxic hazard associated with industry. See also fluorosis. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The warm evening and the heat of the raging fires nearby cause the hydrofluoric acid to evaporate and form a concentrated, colorless vapor, which, carried by the light westerly wind, moves slowly across the interstate and toward the blue-collar neighborhood north of Roosevelt Park. The ore must be dissolved in hydrofluoric acid with some fluorine gas added to form uranium hexafluoride--a strange compound that sublimes (goes from a solid to a gas like "dry ice") at around 150[degrees]F. Minimalism was ascendant as Wilmarth came of age, and, after spending the late '60s as assistant to Tony Smith, he began to make sculpture from square and rectangular panes of glass, etching an expressive surface with hydrofluoric acid. |
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