Critical Temperatures and Pressures of 12 Phthalates Using the Pulse-Heating Method

Nikitin, Eugene D.; Popov, Alexander P.; Yatluk, Yuri G.

doi:10.1021/je060068f

Cited by 37 publications

(17 citation statements)

References 13 publications

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“…In this interval, the apparent critical temperatures and pressures did not depend on the heating time. The uncertainties in the critical temperatures and pressures measured by the pulse-heating method were discussed in our previous paper . We estimate the uncertainties for esters studied at 0.01 T c and 0.03 p c .…”

Section: Methodsmentioning

confidence: 92%

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Vapor Pressures, Enthalpies of Vaporization, and Critical Parameters of a Series of Linear Aliphatic Dimethyl Esters of Dicarboxylic Acids

Verevkin¹,

Kozlova²,

Emel′yanenko³

et al. 2006

J. Chem. Eng. Data

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Vapor pressures and the molar enthalpies of vaporization of the linear aliphatic dimethyl esters of dicarboxylic acids CH3-CO2-(CH2) n -CO2-CH3 with n = (0 to 8) have been determined by the transpiration method. A linear correlation of enthalpies of vaporization (at T = 298.15 K) of the esters studied with the number n and with the Kovat's indices and has been found. The critical temperatures and pressures of the esters with n = (0 to 6) and n = 8 have been measured by the pulse-heating method with the residence times ranging from (0.03 to 1) ms. Experimental data on the critical properties are compared with the estimations by group contribution methods by Constantinou and Gani and by Marrero and Gani. Both methods considerably underestimate the critical temperatures of the esters studied; however, the method by Marrero and Gani provides the prediction of the critical pressures of the esters with an average absolute error approximately equal to the uncertainty of the measurements.

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Section: Methodsmentioning

confidence: 92%

“…The uncertainties in the critical temperatures and pressures measured by the pulseheating method were discussed in our previous paper. 21 We estimate the uncertainties for esters studied at 0.01 T c and 0.03 p c .…”

Section: Measurement Of the Critical Temperatures And Pressuresmentioning

confidence: 99%

Vapor Pressures, Enthalpies of Vaporization, and Critical Parameters of a Series of Linear Aliphatic Dimethyl Esters of Dicarboxylic Acids

Verevkin¹,

Kozlova²,

Emel′yanenko³

et al. 2006

J. Chem. Eng. Data

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“…The uncertainties of the critical properties measured by the pulse-heating method were discussed in detail in our previous papers [9,10,15]. It has been shown that the uncertainties are dp c ¼ 0:03p c , dT c ¼ 0:01T c for low-molar-mass compounds and dp c ¼ 0:04p c , dT c ¼ 0:015T c for compounds with high acentric factors x !…”

Section: Uncertaintiesmentioning

confidence: 97%

Critical point measurement of some polycyclic aromatic hydrocarbons

Nikitin¹,

Popov²

2015

The Journal of Chemical Thermodynamics

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“…The uncertainties of the critical properties measured by the pulse-heating method have been discussed in detail elsewhere. ,, For alkyl glycolates studied, the relative combined expanded uncertainties with the 0.95 level of confidence are U r ( T c ) = 0.01 and U r ( p c ) = 0.03.…”

Section: Experimental Sectionmentioning

confidence: 99%

Vapor Pressure, Vaporization Enthalpies, Critical Parameters, and Heat Capacities of Alkyl Glycolates

et al. 2020

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Developing biotechnological methods to produce glycolic acid and alkyl glycolates requires knowledge of thermophysical and thermodynamic data. Vapor pressures of linear alkyl glycolates HO–CH2–COO–(CH2) n –H with n = 1–8 were determined by the transpiration method. Standard molar enthalpies of vaporization at experimental temperature and at 298.15 K were derived from the temperature dependence of the vapor pressure. The critical temperatures and pressures of alkyl glycolates were measured by the pulse-heating method. The experimental data were successfully checked for internal consistency. Molar heat capacity of atmospheric pressure for liquid esters was measured by the method of differential scanning calorimetry in the temperature range 303–423 K. The molar liquid heat capacities at 298.15 K and atmospheric pressure of alkyl glycolates were calculated from the result of this work. The measured values were used for estimating prediction capabilities of group-contribution methods by Constantinou and Gani, Marrero and Gani, and Hukkerikar et al. for critical properties and Chickos and Acree, Domalski and Hearing, and Ceriani et al. for heat capacity at 298.15 K. Results of this study could be used for the design and optimization of the chemical processes of the utilization of renewable feedstock.

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Critical Temperatures and Pressures of 12 Phthalates Using the Pulse-Heating Method

Cited by 37 publications

References 13 publications

Vapor Pressures, Enthalpies of Vaporization, and Critical Parameters of a Series of Linear Aliphatic Dimethyl Esters of Dicarboxylic Acids

Vapor Pressures, Enthalpies of Vaporization, and Critical Parameters of a Series of Linear Aliphatic Dimethyl Esters of Dicarboxylic Acids

Critical point measurement of some polycyclic aromatic hydrocarbons

Vapor Pressure, Vaporization Enthalpies, Critical Parameters, and Heat Capacities of Alkyl Glycolates

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