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isopropyl alcohol,



(ī'səprō`pənōl, ī'səprō`pĭl), (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. It is a major component of rubbing alcohols. Isopropanol is a secondary alcoholalcohol,
any of a class of organic compounds with the general formula R-OH, where R represents an alkyl group made up of carbon and hydrogen in various proportions and -OH represents one or more hydroxyl groups.
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. It is one of the cheapest alcohols and has replaced ethanol for many uses because of its similar solvent properties. Isopropanol is made commercially by dissolving propylene gas in sulfuric acid and then hydrolyzing the sulfate ester that is formed; the propylene is a byproduct of petroleum refining. Isopropanol was formerly obtained largely by catalytic reduction of acetoneacetone
, dimethyl ketone
, or 2-propanone
, CH3COCH3, colorless, flammable liquid. Acetone melts at −94.8°C; and boils at 56.2°C;. It is the simplest aliphatic ketone.
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; oxidation of isopropanol is now the major source of acetone.


(organic chemistry)
References in periodicals archive ?
Ethanol, n-propanol, and isopropanol keep the latex steady, for pH values were higher than 3.
Results: The generally established procedure of the end product dissolution with acidic isopropanol caused absorbance instability which strongly affected the results accuracy.
Ms Daw told the court it is unclear how much isopropanol would cause blindness.
Next, based on discoveries made earlier by Anthony Sinskey, professor of microbiology and of health sciences and technology at MIT, new pathways in the bacterium are metabolically engineered to make isopropanol.
The following solvent types have been analyzed separately: ethanol, n-butanol, isopropanol and methanol, acetone and methyl ethyl ketone as well as toluene.
The rate of burning was determined for virgin HDPE sample and the HDPE composite with the addition of crystallized PC filler (40 wt%) prepared in chloroform/ isopropanol (69/31 vol%).
From Syria, the United Nations-Organization for the Prohibition of Chemical Weapons (OPCW) Joint Mission confirms the destruction of the entire declared Syrian stockpile of Isopropanol, " Stephane Dujarric, spokesperson for UN secretary-general, said at the daily briefing.
Our data shows that the acidic solvent extracts of methanol, ethanol, isopropanol and butanol from the whole body of the unchallenged final instar larvae were found to posses antibacterial activity against all tested bacteria.
Syria's isopropanol is to be destroyed by March 1, according to the internationally-agreed time table, and that task is 93 percent completed, a diplomatic source said, with the remaining 7 percent "in a currently inaccessible location.
Syria has declared around 700 tonnes of most dangerous chemicals, 500 tonnes of less dangerous precursor chemicals and around 122 tonnes of isopropanol, which can be used to make sarin gas.
Syria has declared around 700 tonnes of most-dangerous chemicals, 500 tonnes of less-dangerous precursor chemicals and around 122 tonnes of isopropanol, which can be used to make sarin.