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nicotinic acid

(Encyclopedia)nicotinic acid: see coenzyme; vitamin. ...

muriatic acid

(Encyclopedia)muriatic acid: see hydrogen chloride. ...

nitric acid

(Encyclopedia)nitric acid, chemical compound, HNO3, colorless, highly corrosive, poisonous liquid that gives off choking red or yellow fumes in moist air. It is miscible with water in all proportions. It forms an a...

acid anhydride

(Encyclopedia)acid anhydride ănhīˈdrīd, –drəd [key], chemical compound that reacts with water to form an acid (see acids and bases). Anhydrides of inorganic acids are usually oxides of nonmetallic elements. ...

pantothenic acid

(Encyclopedia)pantothenic acid pănˈtəthĕnˈĭk [key]: see coenzyme; vitamin. ...

oxalic acid

(Encyclopedia)oxalic acid ĕthˌāndīōĭk [key], HO2CCO2H, a colorless, crystalline organic carboxylic acid that melts at 189℃ with sublimation. Oxalic acid and oxalate salts are poisonous. Oxalic acid is found...

acid rain

(Encyclopedia)acid rain or acid deposition, form of precipitation (rain, snow, sleet, or hail) containing high levels of sulfuric or nitric acids (pH below 5.5–5.6). Produced when sulfur dioxide and various nitro...

maleic acid

(Encyclopedia)maleic acid məlēˈĭk [key]: see fumaric acid. ...

malic acid

(Encyclopedia)malic acid: see Krebs cycle.

ascorbic acid

(Encyclopedia)ascorbic acid: see vitamin.