Matches in SemOpenAlex for { <https://semopenalex.org/work/W2321787560> ?p ?o ?g. }
Showing items 1 to 99 of
99
with 100 items per page.
- W2321787560 endingPage "403" @default.
- W2321787560 startingPage "387" @default.
- W2321787560 abstract "The kinetics and mechanism of the chromic acid oxidation of D-galactose in the presence and absence of picolinic acid (PA) in aqueous acid media have been determined under the conditions, [D — galactose] T ≥ [Cr VI ] T at different temperatures. Under the kinetic conditions, HCrO 4 - has been found kinetically active in the absence of PA while in the PA catalysed path, a Cr VI - PA complex has been established as the active oxidant. In the PA-catalysed path, the Cr VI - PA complex receives a nucleophilic attack by the substrate to form a ternary complex which subsequently undergoes a redox decomposition through a two-electron transfer leading to a lactone (oxidised product) and a Cr IV - PA complex. Then the Cr IV -PA complex participates further in the oxidation of D-galactose and ultimately is converted into a Cr III - PA complex. In the uncatalysed path, a Cr VI - substrate ester experiences an acid catalysed redox decomposition (2e-transfer) at the rate-determining step. The uncatalysed path shows a second-order dependence on [H + ]. Under the experimental conditions, both paths show first-order dependences on [D-galactose] T and [Cr VI ] T . The PA-catalysed path is first-order in [PA] T . These observations remain unaltered in the presence of externally added surfactants. The effect of surfactants like N-cetylpyridinium chloride (CPC, a cationic surfactant) and sodium dodecyl sulfate (SDS, an anionic surfactant), on both the uncatalysed and PA-catalysed paths have been studied. CPC retards both the uncatalysed and PA-catalysed path, while SDS accelerates the reactions. The observed micellar effects have been explained by considering the hydrophobic and electrostatic interactions between the reactants and surfactants." @default.
- W2321787560 created "2016-06-24" @default.
- W2321787560 creator A5023077171 @default.
- W2321787560 creator A5052109019 @default.
- W2321787560 creator A5055638275 @default.
- W2321787560 creator A5064019899 @default.
- W2321787560 date "2010-12-01" @default.
- W2321787560 modified "2023-10-16" @default.
- W2321787560 title "Kinetic and Mechanistic Aspects of the Chromic Acid Oxidation of D-Galactose in the Presence and Absence of Picolinic Acid Catalyst in Aqueous Micellar Acid Media" @default.
- W2321787560 cites W1606928394 @default.
- W2321787560 cites W1963688350 @default.
- W2321787560 cites W1964491371 @default.
- W2321787560 cites W1964568732 @default.
- W2321787560 cites W1973206681 @default.
- W2321787560 cites W1973545518 @default.
- W2321787560 cites W1973737816 @default.
- W2321787560 cites W1983254795 @default.
- W2321787560 cites W1986374997 @default.
- W2321787560 cites W1998106515 @default.
- W2321787560 cites W2002437883 @default.
- W2321787560 cites W2013573614 @default.
- W2321787560 cites W2014196511 @default.
- W2321787560 cites W2034176450 @default.
- W2321787560 cites W2042636562 @default.
- W2321787560 cites W2045497741 @default.
- W2321787560 cites W2045745781 @default.
- W2321787560 cites W2048036627 @default.
- W2321787560 cites W2063139934 @default.
- W2321787560 cites W2067082867 @default.
- W2321787560 cites W2070270203 @default.
- W2321787560 cites W2071936432 @default.
- W2321787560 cites W2077514296 @default.
- W2321787560 cites W2091909905 @default.
- W2321787560 cites W2092292656 @default.
- W2321787560 cites W2166389828 @default.
- W2321787560 cites W2322747833 @default.
- W2321787560 cites W247723641 @default.
- W2321787560 cites W2950257830 @default.
- W2321787560 cites W2950385120 @default.
- W2321787560 cites W2994147745 @default.
- W2321787560 cites W3004581747 @default.
- W2321787560 cites W3004602669 @default.
- W2321787560 doi "https://doi.org/10.3184/146867810x12894108189521" @default.
- W2321787560 hasPublicationYear "2010" @default.
- W2321787560 type Work @default.
- W2321787560 sameAs 2321787560 @default.
- W2321787560 citedByCount "2" @default.
- W2321787560 countsByYear W23217875602013 @default.
- W2321787560 crossrefType "journal-article" @default.
- W2321787560 hasAuthorship W2321787560A5023077171 @default.
- W2321787560 hasAuthorship W2321787560A5052109019 @default.
- W2321787560 hasAuthorship W2321787560A5055638275 @default.
- W2321787560 hasAuthorship W2321787560A5064019899 @default.
- W2321787560 hasBestOaLocation W23217875601 @default.
- W2321787560 hasConcept C11268172 @default.
- W2321787560 hasConcept C123669783 @default.
- W2321787560 hasConcept C161790260 @default.
- W2321787560 hasConcept C178790620 @default.
- W2321787560 hasConcept C179104552 @default.
- W2321787560 hasConcept C184651966 @default.
- W2321787560 hasConcept C185592680 @default.
- W2321787560 hasConcept C2776333044 @default.
- W2321787560 hasConcept C2780340842 @default.
- W2321787560 hasConcept C55493867 @default.
- W2321787560 hasConcept C55904794 @default.
- W2321787560 hasConcept C58226133 @default.
- W2321787560 hasConceptScore W2321787560C11268172 @default.
- W2321787560 hasConceptScore W2321787560C123669783 @default.
- W2321787560 hasConceptScore W2321787560C161790260 @default.
- W2321787560 hasConceptScore W2321787560C178790620 @default.
- W2321787560 hasConceptScore W2321787560C179104552 @default.
- W2321787560 hasConceptScore W2321787560C184651966 @default.
- W2321787560 hasConceptScore W2321787560C185592680 @default.
- W2321787560 hasConceptScore W2321787560C2776333044 @default.
- W2321787560 hasConceptScore W2321787560C2780340842 @default.
- W2321787560 hasConceptScore W2321787560C55493867 @default.
- W2321787560 hasConceptScore W2321787560C55904794 @default.
- W2321787560 hasConceptScore W2321787560C58226133 @default.
- W2321787560 hasIssue "4" @default.
- W2321787560 hasLocation W23217875601 @default.
- W2321787560 hasOpenAccess W2321787560 @default.
- W2321787560 hasPrimaryLocation W23217875601 @default.
- W2321787560 hasRelatedWork W1002471555 @default.
- W2321787560 hasRelatedWork W1969730921 @default.
- W2321787560 hasRelatedWork W2007976646 @default.
- W2321787560 hasRelatedWork W2018921675 @default.
- W2321787560 hasRelatedWork W2049739047 @default.
- W2321787560 hasRelatedWork W2091735070 @default.
- W2321787560 hasRelatedWork W2093663582 @default.
- W2321787560 hasRelatedWork W2547599614 @default.
- W2321787560 hasRelatedWork W2903716093 @default.
- W2321787560 hasRelatedWork W4313252119 @default.
- W2321787560 hasVolume "35" @default.
- W2321787560 isParatext "false" @default.
- W2321787560 isRetracted "false" @default.
- W2321787560 magId "2321787560" @default.
- W2321787560 workType "article" @default.