isopropyl alcohol

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isopropyl alcohol:

see isopropanolisopropanol,
 isopropyl alcohol,
or 2-propanol
, (CH3)2CHOH, a colorless liquid that is miscible with water. It melts at −89°C; and boils at 82.3°C;. It is poisonous if taken internally.
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The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Isopropyl Alcohol


2-propanol, the simplest secondary aliphatic alcohol, CH3CH(OH)CH3.

Isopropyl alcohol is a colorless liquid with a characteristic odor. Melting point, — 89.5°C; boiling point, 82.4°C; density, 0.7851 g/cm3 (20°C); flash point, 11.7°C; lower volume explosive limit in air, 2.5 percent by volume (25“C). Isopropyl alcohol is miscible in all proportions with water and organic solvents, with water forming an azeotrope (87.9 percent isopropyl alcohol; boiling point, 83.38°C). Isopropyl alcohol has all the properties of a secondary aliphatic alcohol.

Industrially, isopropanol is made by the direct or sulfuric-acid hydration of propylene. The raw material is the propane-propylene cut of cracked gas or the propylene fraction of petroleum pyrolysis. Isopropyl alcohol is used chiefly in making acetone (by dehydrogenation or incomplete oxidation), as a solvent (for example, of essential oils and resins), and as a component in antifreeze mixtures.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

isopropyl alcohol

[¦ī·sə′prō·pəl ′al·kə‚hȯl]
(organic chemistry)
(CH3)2CHOH A colorless liquid that boils at 82.4°C; soluble in water, ether, and ethanol; used in manufacturing of acetone and its derivatives, of glycerol, and as a solvent. Also known as isopropanol; 2-propanol; sec-propyl alcohol.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
TABLE 1: Treatments of original documents (18th century) with nano-calcium carbonate in propan-2-ol. pH before treatment pH after treatment Paper: 6.5 [+ or -] 0.1 Paper: 10.1 [+ or -] 0.1 Ink: 5.1 [+ or -] 0.1 Ink: 9.9 [+ or -] 0.1 Colour coordinates before Colour coordinates after treatment treatment Paper: Paper: L* = 91.79 [+ or -] 0.12 L* = 90.39 [+ or -] 0.36 a* = +0.08 [+ or -] 0.02 a* = +0.19 [+ or -] 0.03 b* = +11.15 [+ or -] 0.18 b* = +10.85 [+ or -] 0.14 Ink: Ink: L* = 63.87 [+ or -] 1.63 L* = 69.34 [+ or -] 1.25 a* = +1.05 [+ or -] 0.82 a* = +3.02 [+ or -] 0.89 b* = +14.66 [+ or -] 0.54 b* = +13.52 [+ or -] 1.24 TABLE 2: Treatments of laboratory paper samples with calcium propanoate in ethanol.
Propan-2-ol can be oxidized by ADH to the ketone end product, acetone.
melanogaster strains were exposed in short- and long-term experiments to ethanol, acetone, propan-2-ol and combinations of these compounds in concentrations that exist normally in Drosophila habitats.
Methanol (Uvasol[R] grade), dichloromethane (Uvasol grade), isoamyl alcohol (analytical grade), propan-2-ol (analytical grade), 13.2 mol/L ammonia, and sodium hydroxide (Normapur[R]) were purchased from Merck.