Topic
Benzoic acid
About: Benzoic acid is a research topic. Over the lifetime, 11832 publications have been published within this topic receiving 167127 citations. The topic is also known as: Retardex & E210.
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TL;DR: In situ DRIFTS were conducted to identify adsorbed ozone and/or adorbed oxygen species on CaO, ZnO, γ-Al2O3, CuO and α-Fe 2O3 surfaces at room temperature.
64 citations
TL;DR: In this article, the sonolytic degradation of benzoic acid in aqueous solution was investigated at an ultrasonic frequency of 355 kHz, and the degradation rate was found to be dependent upon the solution pH and the surface activity of the solute.
Abstract: The sonolytic degradation of benzoic acid in aqueous solution was investigated at an ultrasonic frequency of 355 kHz. The degradation rate was found to be dependent upon the solution pH and the surface activity of the solute. The degradation rate was favoured at a solution pH lower than the pK
a of benzoic acid. At pH < pK
a, HPLC, GC and ESMS analysis showed that benzoic acid could be degraded both inside the bubble by pyrolysis and at the bubble/solution interface by the reaction with OH radicals. At higher pH (> pK
a) benzoic acid could only react with OH radicals in the bulk solution. During the sonolytic degradation of benzoic acid, mono-hydroxy substituted intermediates were observed as initial products. Further OH radical attack on the mono-hydroxy intermediates led to the formation of di-hydroxy derivatives. Continuous hydroxylation of the intermediates led to ring opening followed by complete mineralization. Mineralization of benzoic acid occurred at a rate of < 40μM/h.
64 citations
TL;DR: MnO-4 (04 mmol/g)-exchanged Mg-Al-hydrotalcite is an active and highly selective catalyst for the oxidation of benzyl alcohol to benzaldehyde by tert-butyl hydroperoxide under reflux in the absence of solvent as mentioned in this paper.
Abstract: MnO-4 (04 mmol/g)-exchanged Mg-Al-hydrotalcite is an active and highly selective catalyst for the oxidation of benzyl alcohol to benzaldehyde by tert-butyl hydroperoxide under reflux in the absence of solvent It also shows high activity for the oxidation of benzaldehyde to benzoic acid The higher the Mg/Al ratio, the higher is the catalytic activity (in both the reactions) and basicity of the hydrotalcite catalyst
64 citations
TL;DR: The mechanism by which benzoic acid hydrazides (BAH) are oxidized by myeloperoxidase is investigated, and the features that enable them to inactivate the enzyme are determined, and it is proposed that BAHs destroy the heme prosthetic groups of the enzyme by reducing a ferrous myel operon-hydrogen peroxide complex.
64 citations
TL;DR: Pentafluorothiophenol, thiophenolic acid, 1-decanethiol, 1decaneethiol and 1-hexanethenol were confirmed to bind to the surface of ZnS nanocrystallites, inducing phase transition from the hexagonal to cubic phase, with retention of the crystalline size of 3 nm at ambient temperature and pressure as discussed by the authors.
64 citations