Kinetics and Mechanism of Oxidation of 3-phenoxy-1,2-propanediol by Ditelluratocuprate(III) in Alkaline Medium
- Jinhuan Shan
- Yanping Liu
- Haixia Shen
- Jiying Zhang
- Yafeng Yang
Abstract
The kinetics of oxidation of 3-phenoxy-1,2-propanediol by ditelluratocuprate(III) (DTC) in alkaline liquids has been studied spectrophotometrically in the temperature range of 293.2 K-313.2 K. The reaction rate showed first order dependence in DTC and fractional order with respect to 3-phenoxy-1,2-propanediol. 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-. The reaction rate changed with the position of hydroxyl group. There is a negative salt effect. A plausible mechanism involving a pre-equilibrium of a adduct formation between the complex and 3-phenoxy-1,2-propanediol was proposed. The rate equations derived from mechanism can explain all experimental observations. The activation parameters along with the rate constants of the rate-determining step were calculated.
- Full Text: PDF
- DOI:10.5539/ijc.v3n2p111
Index
- Academic Journals Database
- Bibliography and Index of Geology
- CAB Abstracts
- CABI
- CAS (American Chemical Society)
- COPAC
- Elektronische Zeitschriftenbibliothek (EZB)
- EuroPub Database
- Excellence in Research for Australia (ERA)
- Genamics JournalSeek
- Google Scholar
- Infotrieve
- Mendeley
- MIAR
- RePEc
- ResearchGate
- ROAD
- SHERPA/RoMEO
Contact
- Albert JohnEditorial Assistant
- ijc@ccsenet.org