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Acetone

About: Acetone is a research topic. Over the lifetime, 9458 publications have been published within this topic receiving 120867 citations. The topic is also known as: propanone & dimethylketone.


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Journal ArticleDOI
TL;DR: In this article, the excess chemical potentials of a series of molecules dissolved in the ionic liquid dimethyl imidazolium chloride have been determined by series of transformations, and the molecules are water, methanol, dimethyl ether, acetone and propane.
Abstract: The excess chemical potentials of a series of molecules dissolved in the ionic liquid dimethyl imidazolium chloride have been determined by a series of transformations. The molecules are water, methanol, dimethyl ether, acetone and propane. Water and methanol have large negative values of the excess chemical potential (-29kJmol−1 and — 14kJ mol−1 respectively); the polar molecules dimethyl ether and acetone have positive values of about 7kJmol−1 while the value for propane is +26 kJ mol−1. Hydrogen bonding to the anion plays an important part in the stabilization of water and methanol.

109 citations

Journal ArticleDOI
TL;DR: MAC (methyl addition/cyclization) has a unique capacity to induce the sequential growth of hexagonal networks of sp2 carbons from all fusing sites of a PAH, and was found capable of answering an important question in PAH growth, which is expansion of the CT → CP → hexagonal network for which other reported mechanisms are inefficient.

109 citations

Journal ArticleDOI
TL;DR: This work has modified the conditions described by these authors to speed the esterification and simplify the technique and involves the use of aqueous hydrochloric acid as catalyst and relatively large amounts of reagents.

109 citations

Journal ArticleDOI
TL;DR: A mild and efficient oxidation of alcohols with o-iodoxybenzoic acid (IBX) catalyzed by beta-cyclodextrin in a water/acetone mixture (86:14) has been developed.
Abstract: A mild and efficient oxidation of alcohols with o-iodoxybenzoic acid (IBX) catalyzed by β-cyclodextrin in a water/acetone mixture (86:14) has been developed. A series of alcohols were oxidized at room temperature in excellent yields.

109 citations

Journal ArticleDOI
TL;DR: In this article, the authors reported the decomposition of cumene hydroperoxide (CHP) by using K-10 clay supported catalysts such as 20% dodecatungstophosphoric acid (DTP)/K-10, 20% (w/w) Cs2.5H0.5PW12O40/k-10 and also sulfated zirconia at 40°C.
Abstract: Phenol is industrially produced by the Hock process starting from benzene and propylene to yield cumene, which is subsequently oxidized with oxygen to generate cumene hydroperoxide (CHP) which is then decomposed with sulfuric acid to obtain equimolar phenol and acetone. Both phenol and acetone are important bulk chemicals having separate as well as interrelated markets. The last step of the Hock process is polluting and results in loss of selectivity leading to formation of by-products beside the desired products phenol and acetone. The current work reports the decomposition of CHP by using K-10 clay supported catalysts such as 20% (w/w) dodecatungstophosphoric acid (DTP)/K-10, 20% (w/w) Cs2.5H0.5PW12O40/K-10, 20% (w/w) ZnCl2/K-10 and K-10, and also sulfated zirconia at 40 °C. For the first time, the synthesis of Cs2.5H0.5PW12O40 supported on K-10 clay has been reported with complete intact Keggin anion structure. This catalyst has been found to exhibit excellent activity for decomposition of cumene hydroperoxide exclusively into phenol and acetone. Various kinetic parameters were studied over 20% Cs2.5H0.5PW12O40/K-10. The reaction follows the first order kinetics. The catalyst is stable and reusable giving 100% conversion with exclusive selectivity to 100% phenol and acetone during all the runs.

108 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023663
20221,301
2021169
2020193
2019259
2018226