Thermodynamic properties of organic oxygen compounds. Part XXVII. (±)-Butan-2-ol and (+)-butan-2-ol

Andon, R. J. L.; Connett, J. E.; Counsell, J. F.; Lees, E. B.; Martin, John F.

doi:10.1039/j19710000661

Cited by 17 publications

(8 citation statements)

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“…We annealed its SCL for one day at different temperatures below its melting point, and we were not able to obtain the crystalline state. It has been nevertheless reported 11 that crystallization of 2‐butanol occurred after the sample was cooled and warmed several times during 15 days in the temperature range 150–180 K.…”

Section: Resultsmentioning

confidence: 93%

Calorimetric studies at low temperatures of glass‐forming 1‐butanol and 2‐butanol

Hassaine¹,

Ramos²

2011

Physica Status Solidi (a)

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We present calorimetric experiments and specific‐heat Cp(T) measurements of 1‐butanol (n‐butanol) and of one of its chemical isomers, the secondary alcohol 2‐butanol (sec‐butanol), around its glass transition Tg as well as at low temperatures (1.6–30 K). We have obtained and measured both the glass and crystalline states of 1‐butanol, and the glass state of 2‐butanol which is an even better glass former. In this work, we focus on the comparative study of the calorimetric or thermodynamic properties of the glassy states of these two isomers of butanol, determining their glass‐transition temperatures, their discontinuities in specific heat at Tg, and the corresponding enthalpy fictive temperatures. At temperatures below 10 K, both isomers present the typical broad maximum for glasses in Cp/T3, often called the boson peak, its magnitude being much larger in 2‐butanol than in 1‐butanol.

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Section: Resultsmentioning

confidence: 93%

Calorimetric studies at low temperatures of glass‐forming 1‐butanol and 2‐butanol

Hassaine¹,

Ramos²

2011

Physica Status Solidi (a)

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“…In addition to that of methanol presented in Table , the isobaric heat capacities of other alcohols were also calculated with CPA and PC-SAFT. The deviations of the calculated C p from the experimental data − are shown in Table . Two association schemes (2B and 3B) are considered with the two EoS.…”

Section: Modeling Results With Cpa and Pc-saftmentioning

confidence: 99%

Heat Capacities of Fluids: The Performance of Various Equations of State

Zhu

Liu

et al. 2020

J. Chem. Eng. Data

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Heat capacities are fundamental properties of fluids for heat transfer applications.Accurate data can be generally obtained by experimental methods, which are usually expensive, difficult and time-consuming. In terms of the calculations of heat capacities, many models have been proposed in literature. Equations of state represent one of the most promising methods, but their performance has not been systematically studied and extensively reviewed. In this work, calculations and performance of various equations of state for heat capacities are reviewed, and the different contributions to heat capacities are also discussed. The accuracy of the calculated heat capacities, as presented in literature, is also compared for some specific compounds, and the effects of different parametrization strategies as well as association schemes are analyzed. Finally, calculations for both associating and non-associating compounds are performed using two association models, Cubic Plus Association and Perturbed-Chain Statistical Associating Fluid Theory equations of state, for a wide range of compounds for which the heat capacity results from literature are available.

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“…T g is glass-transition temperature and DC p (T g ) its specific-heat discontinuity; T m and DH m are temperature and enthalpy of melting, respectively; m meas and m calc are the measured and calculated (using Equation (1)) values for the fragility index; N beads is the estimated number of configurational units or ''beads'' (see text), as defined by Equation (3). [25,32,33] Philosophical Magazine 1853…”

Section: Discussionmentioning

confidence: 99%

Calorimetric and thermodynamic study of glass-forming monohydroxy alcohols

Ramos

Kabtoul

Hassaine

2011

Philosophical Magazine

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International audienceIn this work we review and concurrently discuss earlier and recent experiments performed on simple aliphatic glass-forming monoalcohols at low temperatures. By doing this, we find an interesting model system to explore different relevant issues concerning molecular glass-forming liquids and even the glass transition phenomenon itself. They include the role played by the molecular aspect ratio in vitrification/crystallization kinetics, the reported appearance of particular cases of polymorphism and polyamorphism, and the influence of chemical isomerism and the location of the hydrogen bond on lattice dynamics and hence on low-temperature properties of glasses

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Thermodynamic properties of organic oxygen compounds. Part XXVII. (±)-Butan-2-ol and (+)-butan-2-ol

Cited by 17 publications

References 0 publications

Calorimetric studies at low temperatures of glass‐forming 1‐butanol and 2‐butanol

Calorimetric studies at low temperatures of glass‐forming 1‐butanol and 2‐butanol

Heat Capacities of Fluids: The Performance of Various Equations of State

Calorimetric and thermodynamic study of glass-forming monohydroxy alcohols

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