Experimental Liquid Densities of n-Pentane, n-Octane, and n-Nonane and Their Binary Mixtures from (273.15 to 363.15) K at 0.1 MPa

Ramos-Estrada, Mariana; Iglesias‐Silva, Gustavo A.; Hall, Kenneth R.; Castillo-Borja, Florianne

doi:10.1021/je200373q

Cited by 21 publications

(10 citation statements)

References 20 publications

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“…The experimental values of densities, viscosities, and refractive indices of the pure samples under different temperatures are compared with those from the references ,,− in Table . The absolute average relative deviations (AARD) are calculated according to the following equation, and the results indicate that the experimental values agree well with the literature data. where P is the measurement data of density, viscosity, or refractive index in this work, and P lit is the literature data.…”

Section: Resultsmentioning

confidence: 99%

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Density, Viscosity, and Refractive Index for Binary Mixtures of Three Adamantane Derivatives with n-Nonane or n-Undecane at T = 293.15–343.15 K and Atmospheric Pressure

et al. 2020

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Measurements on densities, viscosities, and refractive indices at atmospheric pressure for binary mixtures of 1,3-dimethyladamantane (1,3-DMA), 1,3,5-trimethyladamantane (1,3,5-TMA), and 1-ethyladamantane (1-EA) with n-nonane or n-undecane are carried out over the whole composition range at temperatures T = 293.15−343.15 K and atmospheric pressure. The excess molar volume (V m E ), deviation in viscosity (Δη), deviation in refractive index (Δn D ), and deviation in molar refraction (ΔR) for the six mixtures are calculated and then fitted to the Redlich−Kister polynomial. The V m E values are all negative over the entire range of mole fractions and decrease with increasing temperature for the six binary systems. The absolute values of Δη for the mixtures decrease obviously with increasing temperature. The Δn D values with the volume fraction for the six systems are all positive over the entire composition range. Density, viscosities, and refractive index of the six systems are correlated by the Jouyban−Acree model. The experimental results could be useful for the development of high-energy-density hydrocarbon fuels.

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Section: Resultsmentioning

confidence: 99%

“… a Standard uncertainties u are u ( p ) = 0.50 kPa, u ( T ) = 0.01 K, u r (ρ) = 0.001, u r (η) = 0.02, and u c ( n D ) = 0.0005. b Ref . c Ref . d Ref . e Ref . f Ref . g Ref . h Ref . i Ref . j Ref . k Ref . l Ref . m Ref . n Ref . o Ref . p Ref . q Ref . r Ref . …”

Section: Resultsmentioning

confidence: 99%

Density, Viscosity, and Refractive Index for Binary Mixtures of Three Adamantane Derivatives with n-Nonane or n-Undecane at T = 293.15–343.15 K and Atmospheric Pressure

et al. 2020

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“…Looi et al 2 measured both excess enthalpies and excess volumes for pseudohexadecane consisting of an equimolar mixture of tridecane + nonadecane and concluded that the principle held. A further application of the congruence principle is illustrated in the recent measurements of Ramos-Estrada et al 17 who reported density measurements on mixtures of pentane, octane, and nonane over a wide temperature range. The density data for mixtures at mole fractions corresponding to the intermediate pure alkanes show agreement with those pure alkanes almost within experimental uncertainty.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Excess Molar Volumes for Three- and Four-Component Mixtures Simulating the Binary Mixture (Cyclohexane + Hexadecane)

Marsh

Brown²

2015

J. Chem. Eng. Data

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Excess molar volumes of mixtures of cyclohexane and pseudocyclohexane (an equimolar mixture of cyclopentane + cycloheptane) with hexadecane and various pseudohexadecanes (equimolar mixtures of tetradecane + octadecane, decane + docosane, or octane + tetracosane) have been measured at 313.15 K. The results for the multicomponent mixtures are compared with those for the binary mixtures and they show that n-alkanes obey, not quite within experimental uncertainty, an extended principle of congruence with cyclohexane as the other component, whereas mixtures of pseudocyclohexane with hexadecane do not obey the extended principle. ■ INTRODUCTIONThe principle of congruence of Brønsted and Koefoed 1 states that the properties of a multicomponent n-alkane mixtures should depend only on the average carbon number of the mixture. For example, an n-alkane mixture of pentane (C 5 ) (1) + heptane (C 7 ) (2) with x 1+2 = 0.5 mixed with tetradecane (C 14 ) (3) + (1 − x) octadecane (C 18 ) (4) with x 3+4 = 0.5 should have the same excess volume, density, excess enthalpy, and excess Gibbs energy as an equimolar mixture of hexane (C 6 ) + hexadecane (C 16 ) and all mixtures should have the same density as undecane (C 11 ). This principle has been found to hold for n-alkane mixtures nearly within experimental uncertainty 2−4 and holds to a lesser extent with other alkane substituted homologous series such as n-alkan-1-ols. 5,6 In our earlier work, 7 the principle was shown to hold for the excess volumes of three and four component mixtures simulating hexane + hexadecane to within 1 % relative at V m E (max) for hexane + hexadecane. For the excess enthalpy with similar mixtures, the agreement was within 2 % relative at H m E (max). 7 Measurements have been made on mixtures of cycloalkanes with pseudocycoloalkanes by Letcher et al., 8 and it was concluded that cycloalkanes did not satisfy the principle of congruence to the same extent as n-alkanes. In this work, the hypothesis that an extended principle can be applied to pseudocycloalkane mixtures with n-alkanes was tested. Also tested was the hypothesis that a pseudo-n-alkane (for example an equimolar mixture of tetradecane + octadecane) behaves the same as hexadecane when mixed with an arbitrary second component. ■ EXPERIMENTAL SECTIONThe source and purity of the materials are summarized in Table 1. They were used without further purification except for passing through a column of activated alumina. The purities were determined with a Varian GLC using a flame ionization detector with a 20 m capillary SE-30 column with splitter. The pseudoalkanes and pseudocycloalkanes were prepared as described previously. 7 Briefly, the mixtures were prepared by mass in a flask containing a ground glass stopper with the mass of the less volatile component being determined first and then

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“…For instance, liquid densities of pentane, octane and nonane, and of their binary mixtures were measured by Ramos-Estrada et al 261 from 273.15 K to 363.15 K at 0.1 MPa, using a vibrating-tube densimeter from Anton Paar (DMA 5000). Volumetric properties, i.e.…”

Section: Mixtures Of Aprotic Liquidsmentioning

confidence: 99%

CHAPTER 7. Excess Volumes of Liquid Nonelectrolyte Mixtures

Wilhelm¹,

Grolier²

2014

Volume Properties

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Experimental Liquid Densities of n-Pentane, n-Octane, and n-Nonane and Their Binary Mixtures from (273.15 to 363.15) K at 0.1 MPa

Cited by 21 publications

References 20 publications

Density, Viscosity, and Refractive Index for Binary Mixtures of Three Adamantane Derivatives with n-Nonane or n-Undecane at T = 293.15–343.15 K and Atmospheric Pressure

Density, Viscosity, and Refractive Index for Binary Mixtures of Three Adamantane Derivatives with n-Nonane or n-Undecane at T = 293.15–343.15 K and Atmospheric Pressure

Excess Molar Volumes for Three- and Four-Component Mixtures Simulating the Binary Mixture (Cyclohexane + Hexadecane)

CHAPTER 7. Excess Volumes of Liquid Nonelectrolyte Mixtures

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