Journal
REACTION KINETICS MECHANISMS AND CATALYSIS
Volume 126, Issue 2, Pages 1081-1096Publisher
SPRINGER
DOI: 10.1007/s11144-019-01551-7
Keywords
Acidity scale; Solid acids; Test reactions; Amberlyst resins; Sulfated oxides; Solid sulfuric acid
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Funding
- Faculty of Chemistry, Warsaw University of Technology
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The measurements of the minimum acid strength (H(O)min) required for the initiation of cis-stilbene at 303K and tert-butylbenzene at 313K, 323K and 333K have enabled the establishment of a much more precise acid strength scale based on test reactions. H(O)min values obtained were: -9.0 (cis-stilbene, 303K), -9.3, -9.5 and -9.9 (tert-butylbenzene, 313K, 323K, 333K). The updated method was used for the determination of the acid strength of different catalysts obtained in the reaction of chlorosulfonic and sulfuric acid on different oxide carriers. It was found that the acid strength values depended on the basicity of the studied supports. For the supports treated with chlorosulfonic acid the values of acid strength were: -11.5
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