Linked Life Data

16223692

Source:http://linkedlifedata.com/resource/pubmed/id/16223692

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2005-10-14
pubmed:abstractText
The rate constants and products of the aquasonolysis of thiophene, tetrahydrothiophene, 2-methylthiophene, 2,5-dimethylthiophene, and 2-ethylthiophene have been investigated. The sonolysis of the selected compounds in aqueous solution follows pseudo-first-order kinetics. The aquasonolytical rate constants correlate very well with the water solubility and Henry's Law constants of thiophenes. Surprisingly, vapour pressures and heats of formation of thiophenes have little effect on their aquasonolytical rates. The pseudo-first-order rate constant for the decay of thiophene decreases as its initial concentration increases. These results indicate that the transfer process of organic solutes between cavitation bubbles and the bulk liquid can strongly affect the aquasonolysis. Furthermore, carbon disulfide, diacetylene, and dimers can be detected as common products during ultrasonic irradiations. Hence, the predominant pathway of the aquasonolysis of thiophenes is the pyrolysis during the collapse of cavities.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1350-4177
pubmed:author
pubmed:issnType
Print
pubmed:volume
13
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
86-91
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Aquasonolysis of thiophene and its derivatives.
pubmed:affiliation
Institute of Technical Chemistry and Environmental Chemistry, Friedrich-Schiller-University, Lessingstrasse 12, D-07743 Jena, Germany.
pubmed:publicationType
Journal Article