Results 251 to 260 of about 5,168,176 (315)

Heterogeneous Interactions between Gas-Phase Pyruvic Acid and Hydroxylated Silica Surfaces: A Combined Experimental and Theoretical Study.

Journal of Physical Chemistry A, 2019
The adsorption of gas-phase pyruvic acid (CH3COCOOH) on hydroxylated silica particles has been investigated at 296 K using transmission Fourier transform infrared (FTIR) spectroscopy and theoretical simulations. Under dry conditions (
Yuan Fang, Dominika Lesnicki, K. Wall, M. Gaigeot, M. Sulpizi, V. Vaida, V. Grassian   +6 more
semanticscholar   +1 more source

Chemistry and Photochemistry of Pyruvic Acid Adsorbed on Oxide Surfaces.

Journal of Physical Chemistry A, 2019
The surface chemistry and photochemistry of gas-phase pyruvic acid (CH3COCOOH) on two oxides, Al2O3 and TiO2, have been investigated using transmission Fourier Transform Infrared (FTIR) Spectroscopy and mass spectrometry.
M. R. Alves, Yuan Fang, K. Wall, V. Vaida, V. Grassian   +4 more
semanticscholar   +1 more source

Pulpal response to pyruvic acid

Journal of Oral Pathology & Medicine, 1977
Abstract. Etching of enamel surfaces produces a marked increase in the bond strength of dental materials to tooth structure. The results of recent studies have indicated that pyruvic acid may be used in preference to phosphoric acid, because of its milder etching effect on enamel surfaces, without adversely affecting the bond strength.
D H, Retief, J C, Austin
openaire   +2 more sources

Pyruvic Acid Dimethylhydrazone. A Synthetic Equivalent of the Pyruvic Acid Dianion

Chemistry Letters, 1990
Abstract The pyruvic acid dimethyl hydrazone can be easily prepared in ether. This compound, after deprotonation with alkyllithium, forms a strong nucleophile which on treatment with electrophiles and acidic work up yield α-ketoacids, α-hydroxybutenolides or α,γ-diketoacids.
Inés Tapia, Victoria Alcazar, Joaquín R Moran, Cruz Caballero, Manuel Grande   +4 more
openaire   +1 more source

Pyruvic Acid Peel

2017
C. Wambier
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Pyruvic acid metabolism in obesity

The American Journal of Digestive Diseases, 1955
Controlled experiments on the relative efficiency of carbohydrate, fat and protein in weight reduction diets indicate that obese people lose more weight when most of the calories are derived from fat. These findings are explained by a concept of obesity as due to an impairment in the oxidative pathway of pyruvic acid.
openaire   +2 more sources

Pyruvic acid as an etching agent

Journal of Oral Rehabilitation, 1976
SummaryPhosphoric acid at different concentrations has been extensively used as an etching agent to improve bonding of dental materials to enamel surfaces. Recently attention has been drawn to the possible use of polyfunctional organic acids as conditioning agents.The object of this investigation was to determine the optimal concentration of pyruvic ...
D H, Retief, J, Bischoff, E H, van der Merwe   +2 more
openaire   +2 more sources

Photoinduced Oligomerization of Aqueous Pyruvic Acid

The Journal of Physical Chemistry A, 2006
The 320 nm-band photodecarboxylation of aqueous pyruvic acid (PA), a representative of the alpha-oxocarboxylic acids widely found in the atmospheric aerosol, yields 2,3-dimethyltartaric (A) and 2-(3-oxobutan-2-yloxy)-2-hydroxypropanoic (B) acids, rather than 3-hydroxy-2-oxobutanone as previously reported. A and B are identified by liquid chromatography
Guzmán, M. I., Colussi, A. J., Hoffmann, M. R.   +2 more
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Pyruvic acid-catalyzed one-pot three-component green synthesis of isoxazoles in aqueous medium: a comparable study of conventional heating versus ultra-sonication

Proceedings of the Indian Academy of sciences. Chemical sciences, 2022
S. Deshmukh, A. Nalkar, S. Thopate
semanticscholar   +1 more source

ChemInform Abstract: Pyruvic Acid Dimethylhydrazone. A Synthetic Equivalent of the Pyruvic Acid Dianion.

ChemInform, 1991
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
I. TAPIA, V. ALCAZAR, J. R. MORAN, C. CABALLERO, M. GRANDE   +4 more
openaire   +1 more source