Topic
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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TL;DR: In this article, structural characterizations and chemisorption of O 2 revealed that vanadium species in 10% V 2 O 5 /TiO 2 and 10%V 2 O5 /γ-Al 2 O 3 catalysts were highly dispersed polyvanadates.
37 citations
TL;DR: In this paper, the adsorption of 2,4-dinitrophenylhydrazine and the 2, 4-dinethenylhexine derivatives of acetaldehyde, propionaldehyde, acetone, and methyl ethyl ketone was studied on columns of silicic acid-Super Cel.
Abstract: In determining the structure of a number of unsaturated compounds by ozonization, considerable difficulty has been experienced in separating small amounts of low molecular weight carbonyl compounds. The most satisfactory method of isolation is through the 2,4-dinitrophenylhydrnzones, as these are readily formed and are insoluble in water, but in many cases separation of the derivatives by fractional crystallization is unsatisfactory.
Separations of a number of 2,4-dinitrophenylhydrazones by chromatographic adsorption have been reported by Strain, by Lucae, Prater and Morris, and by Buchman, Schlatter, and Reims, but only a few of the aliphatic derivatives have been investigated. In the present work, the adsorption of 2,4-dinitrophenylhydrazine and the 2,4-dinitrophenylhydrazones of acetaldehyde, propionaldehyde, acetone, and methyl ethyl ketone was studied on columns of silicic acid-Super Cel.
37 citations
37 citations
TL;DR: In this paper, the photolysis of acetone in the region 2600-2900A has been studied at temperatures from 100-275°C, alone, in the presence of liquid mercury, mercury vapor and mercury dimethyl.
Abstract: The photolysis of acetone in the region 2600–2900A has been studied at temperatures from 100–275°C, alone, in presence of liquid mercury, mercury vapor and mercury dimethyl. From a comparison of the products formed in each case and the effect of temperature thereon a mechanism is suggested which indicates that mercury methyl, if not mercury dimethyl, is formed by reaction between methyl radicals and mercury atoms suggesting a greater stability of the mercury methyl radical than hitherto believed.
37 citations
Journal Article•
TL;DR: Hydrogen peroxide was determined by its reaction with the complex of titanium(Ⅳ) and 4 (2 pyridylazo) resorcinol against references catalase treated and the minimum concentration of hydrogen peroxide determined in this essay was 0 25 μmol·L -1.
Abstract: Levels of hydrogen peroxide in plant extracts were overestimated by the method of only using titanium(Ⅳ) because of the interference of pigments and other materials while underestimated by the method of adding activated charcoal(A.C.) in 5% trichloroacetic acid extracts to remove pigments. These problems were avoided by a developed method of extraction, which could not only remove the pigments in acetone extracts conveniently but also get a high recovery more than 95%. Hydrogen peroxide was determined by its reaction with the complex of titanium(Ⅳ)and 4 (2 pyridylazo) resorcinol against references catalase treated. The minimum concentration of hydrogen peroxide determinated in this essay was 0 25 μmol·L -1 . Levels of hydrogen peroxide in leaves of some plant species ranged from 0 1～0 8 μmol·g -1 .
37 citations