Indexing Metadata
Kinetic, Mechanistic and Spectrophotometric Study of
Micelle Effects on the Oxidation of Thiourea by
Quinolinium Dichromate in Perchloric Acid Medium |
DUBLIN | CORE | METADATA ITEM | METADATA FOR THIS DOCUMENT |
1 | Title | Title of Document | Kinetic, Mechanistic and Spectrophotometric Study of
Micelle Effects on the Oxidation of Thiourea by
Quinolinium Dichromate in Perchloric Acid Medium |
2 | Creator | Author's name, affiliation, country | D. SURYA KALA, ASIF K. RAMA KRISHNA
M.K.CHAKRAVARTHY and P.V. SUBBA RAO Department of Chemistry, Institute of Science, GITAM University, Visakhapatnam, India
Department of Chemistry, ANITS Engineering College, Visakhapatnam, India
Department of Chemistry, Gayatri Vidya Parishad, Visakhapatnam, India |
3 | Subject | Dicipline(s) | Chemical Science |
3 | Subject | Keywords | Monomeric quinolinium dichromate, QMC, Oxidation, Effect of anionic and neutral (TX-100) micelle |
4 | Description | Abstract | The kinetic investigation of oxidation of thiourea by quinolinium dichromate (QDC) in perchloric acid medium at constant ionic strength was studied spectrophotometrically at 440 nm. A stoichiometric ratio of 3:1 with thiourea versus QDC was observed. The reaction was first order with respect to thiourea, monomeric QDC (QMC) and HClO4. Induced polymerization of acrylonitrile was observed. The mechanism involved the attack of protonated monomeric QDC (QMC) on the substrate in the rate determining step forming the products. Addition of Mn(II) has no effect on the reaction rate. The effect of anionic micelle (SDS) and neutral micelle (TX-100) on the system was studied using Berezin’s kinetic model and observed a partial inhibitory effect on the rate of the reaction. The thermodynamic parameters like ΔEa ΔS and ΔG have been calculated and possible mechanism was proposed. |
5 | Publishers | Organizing agency, location | WWW Publications, India |
6 | Contributor | Sponsor(s) | - |
7 | Date | Date (YYYY-MM-DD) | - |
8 | Type | Status & genre | Peer-reviewed Article |
8 | Type | Type | |
9 | Formate | File Formate | PDF |
10 | Identifier | Uniform Resource Identifier | Click Here |
10 | Identifier | Digital Object Identifier | |
11 | Source | Journal/conference title; vol., no. (Year) | Chemical Science Transactions, Volume 2 , Number (4), (2013) |
12 | Lanuguage | English=en | en |
13 | Relation | Supp.files | |
14 | Coverage | | - |
15 | Copyright | Copyright and permissions | |
Chemical Science Transactions | Chem Sci Trans | CST | Online Chemistry Journal | Open Access
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