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This colorless, flammable liquid with a characteristic smell is mainly used as a solvent either directly or as its esters. Its isomers , the other butanols , include n -butanol , 2-butanol , and tert -butanol , all of which are important industrially.
Isobutanol is produced by the carbonylation of propylene. Two methods are practiced industrially, hydroformylation is more common and generates a mixture of isobutyraldehydes :. The reaction is catalyzed by cobalt or rhodium complexes.
The resulting aldehyde are subsequently hydrogenated to the alcohols, which are then separated. In Reppe carbonylation , the same products are obtained, but the hydrogenation is effected by the water-gas shift reaction. Propanol and Methanol can be combined to isobutyl alcohol. The host's highly active amino acid biosynthetic pathway is shifted to alcohol production.
The uses of isobutanol and n-butanol are similar. They are often used interchangeably. The main applications are as varnishes and precursors to esters, which are useful solvents, e. Isobutyl esters of phthalic, adipic, and related dicarboxylic acids are common plasticizers. In March , the Canadian government announced a ban on isobutanol use in cosmetics. From Wikipedia, the free encyclopedia. CAS Number. Interactive image.
PubChem CID. CC C CO. Chemical formula. Solubility in water. Refractive index n D. Autoignition temperature. LD Lo lowest published. PEL Permissible. REL Recommended. IDLH Immediate danger. Related butanols. Main article: Butanol fuel. Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. Molecular Catalysis. January Bibcode : Natur. News , 87 11 : 38, Ethchlorvynol Methylpentynol Methanol poisoning Ethanol.
Isopropyl alcohol Methanol. Methanol Ethanol Isopropanol. Ethylene glycol. Butanol Hexanol Pentanol Propanol. Benzyl alcohol. Erythritol Threitol. Arabitol Ribitol Xylitol. Mannitol Sorbitol Galactitol Iditol. Ethylene glycol Catechol. Substitution of haloalkane Carbonyl reduction Ether cleavage Hydrolysis of epoxide Hydration of alkene Ziegler process. Deprotonation Protonation Alcohol oxidation Glycol cleavage Nucleophilic substitution Fischer—Speier esterification Williamson ether synthesis Elimination reaction Nucleophilic substitution of carbonyl group Friedel-Crafts alkylation Nucleophilic conjugate addition Transesterification.
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EC Number. ICSC R-phrases outdated. S-phrases outdated. Explosive limits. Lethal dose or concentration LD, LC :. Isobutyraldehyde Isobutyric acid. Wikimedia Commons has media related to Isobutanol. Alcohols found in alcoholic drinks 1-Propanol 2-Methylbutanol Ethanol Isoamyl alcohol Isobutanol Phenethyl alcohol tert -Amyl alcohol tert -Butyl alcohol Tryptophol.
Methanol 4-Methylcyclohexanemethanol Aminomethanol Cyclohexylmethanol Methoxymethanol Methylazoxymethanol Trifluoromethanol. Monohydric alcohols Methanol Ethanol Isopropanol.
Low-molecular-weight alcohols Ethylene glycol. Monoterpene alcohol Terpineol.