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Thermodynamics of thallium alkanoates III. Heat capacity and thermodynamic functions of thallium(I) n-tetradecanoate from 7 to 450 K

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dc.creator Ngeyi, Stanley P.
dc.creator Westrum, Edgar F.
dc.creator López de la Fuente, F. L.
dc.creator Rodríguez Cheda, José A.
dc.creator Fernández Martín, Fernando
dc.date 2007-12-21T12:02:31Z
dc.date 2007-12-21T12:02:31Z
dc.date 1987-03
dc.date.accessioned 2017-01-31T00:59:28Z
dc.date.available 2017-01-31T00:59:28Z
dc.identifier The Journal of Chemical Thermodynamics 19(3): 327-335
dc.identifier <http://hdl.handle.net/2027.42/26945>
dc.identifier http://www.sciencedirect.com/science/article/B6WHM-4CRHDT1-1F8/2/d4b4843c0ccf2cf688ed08407cab9245
dc.identifier http://hdl.handle.net/10261/2564
dc.identifier 10.1016/0021-9614(87)90141-8
dc.identifier.uri http://dspace.mediu.edu.my:8181/xmlui/handle/2027
dc.description The heat capacity of thallium(I) n-tetradecanoate was measured by adiabatic calorimetry to 350 K and by d.s.c. from 235 through 460 K. Good agreement between the methods was obtained within the common temperature range. Several phases were observed in the sample. Two solid-to-solid transitions were found, a very sharp one at 318.5 K (Cp, m/R for the maximum is about 104; enthalpy (ΔtrsHm/R) increments are 1913.5 K and 6.00, respectively) and the other at 378.0 K: [ΔtrsHm/R = 346 K, ΔtrsSm/R = 0.92. Between these transitions there is a broad diffuse hump whose maximum is at about 360 K. The sample melts into a liquid-crystal phase at 396.3 K: ΔtrsHm/R = 754 K, ΔtrsSm/R = 1.9. Finally, "clearing" occurs at 460.7 K: ΔtrsHm/R = 201 K, ΔtrsSm/R = 0.44. Smoothed thermophysical properties are tabulated through "clearing".
dc.description Peer reviewed
dc.language eng
dc.publisher Elsevier
dc.relation 1237
dc.relation 1231
dc.rights openAccess
dc.subject Chemical Thermodynamics
dc.subject Thalium alkanoates
dc.subject Thermophysics
dc.subject Heat capacity
dc.title Thermodynamics of thallium alkanoates III. Heat capacity and thermodynamic functions of thallium(I) n-tetradecanoate from 7 to 450 K
dc.type Artículo


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