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Butanol (also called butyl alcohol) is a four-carbon alcohol with a formula of C 4 H 9 O H, which occurs in five isomeric structures (four structural isomers), from a straight-chain primary alcohol to a branched-chain tertiary alcohol; [1] all are a butyl or isobutyl group linked to a hydroxyl group (sometimes represented as BuOH, sec-BuOH, i-BuOH, and t-BuOH).
1-Butanol, also known as butan-1-ol or n-butanol, is a primary alcohol with the chemical formula C 4 H 9 OH and a linear structure. Isomers of 1-butanol are isobutanol , butan-2-ol and tert -butanol .
Photo: negative (left) with ethanol and positive with t-butanol. Comparison of psychoactive alcohols in alcoholic beverages. The Lucas test in alcohols is a test to differentiate between primary, secondary, and tertiary alcohols.
Like other butanols, butan-2-ol has low acute toxicity. The LD 50 is 4400 mg/kg (rat, oral). [6]Several explosions have been reported [7] [8] [9] during the conventional distillation of 2-butanol, apparently due to the buildup of peroxides with the boiling point higher than that of pure alcohol (and therefore concentrating in the still pot during distillation).
2-Methyl-2-butanol tert-Amyl alcohol t-Amylol TAA tert-Pentyl alcohol ... TBE is toxic for the liver, so the use of such solutions declined in the 1940s in humans.
1-Butanol, with a four-carbon chain, is moderately soluble. Because of hydrogen bonding , alcohols tend to have higher boiling points than comparable hydrocarbons and ethers . The boiling point of the alcohol ethanol is 78.29 °C, compared to 69 °C for the hydrocarbon hexane , and 34.6 °C for diethyl ether .
tert-Butyl alcohol is used as a solvent, ethanol denaturant, paint remover ingredient, and gasoline octane booster and oxygenate.It is a chemical intermediate used to produce methyl tert-butyl ether (MTBE) and ethyl tert-butyl ether (ETBE) by reaction with methanol and ethanol, respectively, and tert-butyl hydroperoxide (TBHP) by reaction with hydrogen peroxide.
The botulinum toxin as the most toxic substance known has an LD 50 value of 1 ng/kg, while the most non-toxic substance water has an LD 50 value of more than 90 g/kg; a difference of about 1 in 100 billion, or 11 orders of magnitude. As with all measured values that differ by many orders of magnitude, a logarithmic view is advisable.