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 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.

isopropanol

[¦ī·sə′prō·pə‚nȯl]
(organic chemistry)
References in periodicals archive ?
The report indicates a wealth of information on isopropanol manufacturers and distributors
At present, no literature reviews have reported the use of isopropanol as an extraction solvent for AMPs from insect whole body.
The counterfeit bottles of Arctic Ice vodka were found to contain toxic methanol - a potentially lethal compound which can cause blindness - as well as chloroform and isopropanol, both commonly used in cleaning products," they said.
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).
The dried powder was first extracted with isopropanol in a Soxhlet apparatus for 18 hours which were divided into 3 cycles.
A Typically, water-based inks contain 5%-10% isopropanol or other short chain alcohols to reduce ink surface tension and improve wetting over low-energy substrates.
Other solvents such as acetone, methanol, toluene, isopropanol and dimethylformamide (DMF) were research grade and used as received.
The lower phase was transferred to another tube and dried at 60 [degrees]C under nitrogen, dissolved in 1 mL of toluene (analytical grade, Penta), and loaded onto a Phenomenex Strata SI-1 100-mg silica precolumn that had been prewashed with 1mLof isopropanol (Chromasolv, Merck), and equilibrated with 1 mL of hexane (Uvasol, Merck).
Benzene and isopropanol used in this study were obtained from E.
In the study, 6141 women at 1287 outpatient gynecology offices were treated with recommended doses of black cohosh isopropanol extract, Remifemin (one cap b.