Temperature influence on refractive indices and isentropic compressibilities of alcohol (C2–C4)+olive oil mixtures

González, Cristina; Iglesias, M.; Lanz, Juan José; Marino, G.; Orge, B.; Resa, José M.

doi:10.1016/s0260-8774(00)00192-8

Cited by 26 publications

(25 citation statements)

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“…As was reported in previous studies [1][2][3][4], this kind of mixture shows phase splitting for molecules with high activated hydroxyl groups, due to the steric hindrance. In fact, three mixtures (soybean oil + methanol, ethanol, or 2-propanol) show inmiscibility at high concentrations of the solvent.…”

Section: Data Correlationsupporting

confidence: 77%

“…450, Vitoria, Spain. 2 To whom correspondence should be addressed. E-mail: iqpredij@vc.ehu.es 3 on the presence of double bonds, chain lengths, and isomeric structures of fatty acids and molecular characteristics of triglycerides in solvents.…”

Section: Introductionmentioning

confidence: 99%

“…It is not always possible to obtain reliable values, specially when concerned with mixtures at non-standard conditions. In the scope of investigating the physical properties related to equipment design in the natural oils industry and new environmental friendly procedures of extraction and refining such as modified distillation or wintering, we present as a continuation of previous studies [1][2][3][4] the temperature dependence of the density and refractive index of short aliphatic alcohols (methanol, ethanol, 1-propanol, 2-propanol, 1-butanol) + natural soybean oil over the range from 283.15 to 298.15 K at atmospheric pressure, as a function of molar fraction. From the experimental values, derived properties were computed, using a temperature-dependent Redlich-Kister type polynomial.…”

Section: Introductionmentioning

confidence: 99%

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Measurements of Density and Refractive Index of Soybean Oil + Short Aliphatic Alcohols

et al. 2006

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Densities and refractive indices of binary mixtures containing soybean oil + (methanol, ethanol, 1-propanol, 2-propanol, or 1-butanol) have been measured from 283.15 to 298.15 K at atmospheric pressure, over the complete homogeneous composition range. Derived properties, such as excess molar volumes, partial excess molar volumes, and excess isobaric compressibilities, have been determined. Values of physical properties were compared with the results obtained by different prediction methods; the results were analyzed according to the non-ideality and large differences of molecular characteristics of the compounds included in this study.

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Section: Data Correlationsupporting

confidence: 77%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Measurements of Density and Refractive Index of Soybean Oil + Short Aliphatic Alcohols

et al. 2006

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“…799.982 [9] lit. 1207.1 [16] 799.60 [7] 1205.42 [17] lit. 1303.6 [12] 815.12 [13] a Derived from our measured densities and the isobaric expansivity…”

Section: Resultsmentioning

confidence: 99%

“…These compounds were used as received without further purification. The pure compound densities, speeds of sound, and molar isentropic compressibilities at 298.15 are shown in Table I together with literature data required for the calculation of K E S and u E [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]. The mixtures in this study were prepared gravimetrically using an electronic balance (Scaltec, SBC22) accurate to 0.01 mg.…”

Section: Methodsmentioning

confidence: 99%

Speeds of Sound and Isentropic Compressibilities in Binary Mixtures of 2-Propanol with Several 1-Alkanols at 298.15 K

Savaroğlu

Aral

2005

Int J Thermophys

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Speeds of sound and densities of 2-propanol +1-propanol, 2-propanol + 1-butanol, 2-propanol + 1-octanol, and 2-propanol + 1-hexanol have been measured over the entire composition range at 298.15 K. Speeds of sound of the binary mixtures have also been estimated from free length theory (FLT), collision factor theory (CFT), and Nomoto's relation (NR) and have been compared with experimental speeds of sound. The isentropic compressibilities, molar isentropic compressibilities, excess molar isentropic compressibilities, and excess speeds of sound have been calculated from experimental densities and speeds of sound. Excess molar isentropic compressibilities and excess speeds of sound of the binary mixtures were fitted to the RedlichKister equation.

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Physicochemical Properties of Mixtures of Morama Seed Oil With Alkanols and Alkyl Acetates at 298.15 K Atmospheric Pressure

Yeboah

Oathotse

Ddamba

2018

J Americ Oil Chem Soc

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Densities, ρ, ultrasonic speed, u, and dynamic viscosities, η, of mixtures of morama, Tylosema esculentum, seed oil with 1-propanol, 1-butanol, methyl acetate, and ethyl acetate were determined over the entire composition range at 298.15 K and atmospheric pressure. Excess molar volumes, V E m , excess molar-free volumes V E f , deviations in isentropic compressibility, Δκ s , deviations in ultrasonic speed, Δu, deviations in dynamic viscosity, Δη, and the excess free energy of activation of viscous flow, ΔG* E , were calculated and correlated using the Redlich-Kister equation for each of the (morama seed oil + 1-propanol or 1-butanol or methyl acetate or ethyl acetate) mixtures. The results obtained were discussed in terms of possible dipole-dipole intermolecular interactions and structural effects.

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Temperature influence on refractive indices and isentropic compressibilities of alcohol (C2–C4)+olive oil mixtures

Cited by 26 publications

References 11 publications

Measurements of Density and Refractive Index of Soybean Oil + Short Aliphatic Alcohols

Measurements of Density and Refractive Index of Soybean Oil + Short Aliphatic Alcohols

Speeds of Sound and Isentropic Compressibilities in Binary Mixtures of 2-Propanol with Several 1-Alkanols at 298.15 K

Physicochemical Properties of Mixtures of Morama Seed Oil With Alkanols and Alkyl Acetates at 298.15 K Atmospheric Pressure

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