Topic
Isopropyl alcohol
About: Isopropyl alcohol is a research topic. Over the lifetime, 3064 publications have been published within this topic receiving 27354 citations. The topic is also known as: Rubbing Alcohol & Propan-2-ol.
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TL;DR: In this paper, the slow oxidation of neopentane has been investigated in a static system at 260° by means of gas-liquid chromatography (GLC) during the early stages of the combustion.
Abstract: The slow oxidation of neopentane has been investigated in a static system at 260°. Analysis by means of gas-liquid chromatography (GLC) during the early stages of the combustion showed the presence of isobutene, acetone, isobutyraldehyde, pivalaldehyde, methanol, neopentyl alcohol, isobutene oxide, 3,3-dimethyloxetane, propene, carbon dioxide, acetaldehyde, propene oxide, isopropyl alcohol, t-butyl alcohol and water.
The formation of these products can be rationalized by a mechanism involving oxidation cycles with occasional chain branching. Oxidation cycles are thought to consist of three distinct steps, viz. (I) Oxygenation of alkyl radicals to yield peroxy radicals, (II) Intramolecular decomposition of peroxy radicals with formation of products and oxy radicals and (III) Interaction of the latter with the hydrocarbon to yield hydroxylic products and alkyl radicals. It would appear that in step (II) a C-C bond is broken more readily than a C-H bond. Chain branching is assumed to proceed via the hydroperoxide.
Isomerization of neopentyl radicals and dimerization reactions of radicals do not occur.
18 citations
TL;DR: In this article, tetramethylethylene was ozonized at 0 °C in several binary protic solvents and the relative reactivities toward acetone carbonyl oxide were measured.
Abstract: Tetramethylethylene was ozonized at 0 °C in several binary protic solvents and the relative reactivities of the solvents toward acetone carbonyl oxide were measured. The reactivity was found to decrease in the order methanol, ethanol, propyl alcohol, isopropyl alcohol, water, t-butyl alcohol, and acetic acid.
18 citations
18 citations
TL;DR: In this paper, the isopropyl alcohol decomposition reaction was used as a probe reaction to detect the presence of nitrogen functionalities (pyridinic, pyrrolic, and quaternary nitrogen) on the nitrogen doped support of carbon nanotubes.
18 citations
TL;DR: In this article, the effects of solvent ratio (n-butanol/isopropyl alcohol), temperature, and polymer concentration on the quality of poly(etherblockamide) membranes were studied.
Abstract: We made poly(ether-block-amide) membranes by casting a solution on a nonsolvent surface. The effects of the solvent ratio (n-butanol/isopropyl alcohol), temperature, and polymer concentration on the quality of the membranes were studied. The results show that the film quality was enhanced with increasing isopropyl alcohol ratio in the solvent. This behavior was related to the reduction of the solution surface tension and the interfacial tension between the solution and nonsolvent. Uniform films were made at a temperature range of 70–80°C and a polymer concentration of 4–7 wt %. The morphology of the membranes was investigated with scanning electron microscopy. The qualities of the films improved with increasing isopropyl alcohol ratio in the solvent. With these membranes, the pervaporation of ethyl butyrate (ETB)/water and isopropyl alcohol/water mixtures was studied, and high separation performance was achieved. For ETB/water mixtures, with increasing ETB content, both the permeation flux and separation factor increased. However, for isopropyl alcohol/water mixtures, with increasing isopropyl alcohol content, the permeation flux increased, but the separation factor was diminished. Increasing temperature in a limited range resulted in a decreasing separation factor and an increasing permeation flux. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
18 citations