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isopropanol

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isopropanol, isopropyl alcohol, or 2-propanol (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 alcohol alcohol, 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 acetone acetone , 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.
isopropanol [¦ī·sə′prō·pə‚nȯl]
(organic chemistry)


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The thick film sensors of binary mixtures of metal oxides: tin dioxide/zinc oxide; tin dioxide/indium oxide; and tin dioxide/tungsten oxide for isopropanol vapor detection were fabricated on alumina substrate via screen printing technique.
But the breathalysers cannot always distinguish between isopropanol and drinking alcohol ethanol.
Having met the requirements stated in the RoHS directive, Markem-Imaje has now taken on a new challenge to replace the methanol currently used as denaturant in its alcohol-based inks with isopropanol (IPA).
 
 
 
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