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| Thesis Name： |
Kinetics and mechanism of oxidation of 1,3-propylene glycol by dihydroxyditellutoargentate (III) in alkaline medium |
| Usage： |
Kinetics and mechanism of oxidation |
| Keyword： |
dihydroxyditellutoargentate(III), 1,3-propylene glycol, redox reaction, kinetics and mechanism |
| Remarks： |
The kinetics of oxidation of 1,3-propylene glycol(PG) by dihydroxyditellutoargentate(III) (DDA) was studied spectrophotometrically between 303.2K and 318.2K in alkaline medium. The reaction rate showed first order dependence in DDA and1.18-1.26 order in PG. It was found that the pseudo-first order rate constant kobs increased with an increase in concentration of [OH-] and a decrease in concentration of [TeO42-]. There was a negative salt effect and no free radical was detected. In view of this the dihydroxymonotelluratoargentate (III) species is assumed to be the active species. A plausible mechanism involving a two-electron transfer is proposed and the rate equations derived from mechanism can explain all experimental results. The activation parameters along with the rate constants of the rate-determining step were calculated.
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| Original file： |
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Promulgator Detail |
| Full name: |
hichem |
| Country: |
CN |
| City: |
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| Company Name: |
hichem |
| Homepage: |
http://www.teloon.com |
| E-mail: |
reply |
| Phone: |
86-411-82819585 |
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86-411-82819612 |
| Company Address: |
Renming Road, Dalian city, Lianning pro,china |
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