Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/10388
Title: | Molar Heat Capacity of 1,2-Cyclohexanediol Isomers From (173 to 428) K | Authors: | Maria, Teresa M. R. Eusébio, M. Ermelinda S. |
Issue Date: | 12-Jun-2008 | Publisher: | American Chemical Society | Citation: | Journal of Chemical & Engineering Data. 53:6 (2008) 1316-1320 | Abstract: | Heat capacities of cis-1,2-cyclohexanediol and trans-1,2-cyclohexanediol enantiomers have been determined in the solid state in the temperature range T = (173 to 368) K for the cis-isomer and T = (173 to 373) K in the case of the trans-isomer and in the liquid state at temperatures up to 428 K. Measurements were carried out by differential scanning calorimetry using the enthalpic method. For the cis-isomer, the results show that, before the liquid state is reached, a highly disordered phase is formed. The trans-enantiomers show only a one-step fusion process. The values obtained for the solids are quite well predicted by Goodman’s power law group contribution method, except for the lower temperatures. The Rika method was tested for the prediction of liquid state heat capacity values giving results (15 to 20) % lower than the experimental values. | URI: | https://hdl.handle.net/10316/10388 | ISSN: | 0021-9568 | DOI: | 10.1021/je800047t | Rights: | openAccess |
Appears in Collections: | FCTUC Química - Artigos em Revistas Internacionais |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Molar Heat Capacity of 1,2-Cyclohexanediol Isomers.pdf | 77.1 kB | Adobe PDF | View/Open |
SCOPUSTM
Citations
8
checked on Oct 14, 2024
WEB OF SCIENCETM
Citations
10
8
checked on Oct 2, 2024
Page view(s)
367
checked on Oct 15, 2024
Download(s)
271
checked on Oct 15, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.