WebJun 28, 2024 · Compared with n-butanol, toxicity of i-butanol was much lower, resulting in higher growth rates and tolerance of all three strains, even under 3.0% i-butanol (Table 2). In summary, SecB and SecB T10A displayed higher μ and T to all the tested solvents, especially to some short-chain alcohols. Butanol exhibits a low order of toxicity in single dose experiments with laboratory animals and is considered safe enough for use in cosmetics. Brief, repeated overexposure with the skin can result in depression of the central nervous system, as with other short-chain alcohols. Exposure may also … See more Butanol (also called butyl alcohol) is a four-carbon alcohol with a formula of C4H9OH, which occurs in five isomeric structures (four structural isomers), from a straight-chain primary alcohol to a branched-chain tertiary alcohol; all … See more Primary uses Butanol is used as a solvent for a wide variety of chemical and textile processes, in organic … See more Butanol (n-butanol or isobutanol) is a potential biofuel (butanol fuel). Butanol at 85 percent concentration can be used in cars designed for gasoline (petrol) without any change to the … See more • A.B.E. process • Algal fuel • Butanol fuel • Solvent See more The unmodified term butanol usually refers to the straight chain isomer with the alcohol functional group at the terminal carbon, which is also known as n-butanol or 1-butanol. The straight chain isomer with the alcohol at an internal carbon is sec-butanol or See more 2-methyl-2-butanol is a central nervous system depressant with a similar effect upon ingestion to ethanol. Case reports have been documented demonstrating its potential for abuse. See more Since the 1950s, most butanol in the United States is produced commercially from fossil fuels. The most common process starts with See more
Environmental Health Criteria 65 BUTANOLS: FOUR ISOMERS
WebPhysical effects Sedation - In comparison to alcohol, 2-methyl-2-butanol is significantly more sedating. On low to moderate doses, one... Muscle relaxation Motor control loss Appetite enhancement Dizziness Pain relief … WebTable 4-7. Selected changes in rats exposed to n-butanol in drinking water on GDs 0–20 ..... 38 Table 4-8. Teratogenic observations in rats exposed to n-butanol by gavage during GDs 1–15 40 Table 4-9. Selected changes in rats exposed to n-butanol via inhalation on GDs 1–19..... 42 Table 4-10. mcleodhosted grtv-tblac
2M2B - PsychonautWiki
WebSep 11, 2013 · Densities of toxin-treated cultures were normalized by the density of their respective toxin-free controls under otherwise same growth conditions [ 42 ]. From each tolerance assay, percent tolerance relative to unchallenged cultures was estimated at each challenge level and sample time as follows: The acute toxicity of 1-butanol is relatively low, with oral LD50 values of 790–4,360 mg/kg (rat; comparable values for ethanol are 7,000–15,000 mg/kg). It is metabolized completely in vertebrates in a manner similar to ethanol: alcohol dehydrogenase converts 1-butanol to butyraldehyde; this is then converted to butyric acid by aldehyde dehydrogenase. Butyric acid can be fully metabolized to carbon dioxide and water by the β-oxidation pathway. In the rat, only 0.03… Web7%. When released to the atmosphere, 1-butanol 1s expected to exist In the vapor phase, where It will degrade relatively rapidly by reaction with sunlight-formed hydroxyl radicals. Based upon an experimentally measured rate constant (Atkinson, 1985), the atmospheric half-life for this reaction mcleod hospice house