Excess volumes and refractive indices in the benzene-tert-amyl methyl ether and cyclohexane-tert-amyl methyl ether systems at 298.15 K

1987 ◽  
Vol 52 (12) ◽  
pp. 2839-2843 ◽  
Author(s):  
Jan Linek
Keyword(s):  
Methyl Ether ◽  
Excess Molar Volumes ◽  
Excess Volumes ◽  
Refractive Indices ◽  
Molar Volumes ◽  
Vibrating Tube Densimeter ◽  
Ether System

Excess molar volumes in the benzene-tert-amyl methyl ether and cyclohexane-tert-amyl methyl ether systems were measured by a vibrating-tube densimeter at 298.15 K and compared with the data for the methanol-tert-amyl methyl ether system determined previously. Besides, the refractive indices in both the systems were measured at the same temperature.

Excess molar volumes of methanol or ethanol + n-polyethers at 298.15 K

1999 ◽  
Vol 77 (10) ◽  
pp. 1608-1616 ◽  
Author(s):  
F J Carmona ◽  
F J Arroyo ◽  
I García de la Fuente ◽  
J A González ◽  
J C Cobos
Keyword(s):  
Free Volume ◽  
Atmospheric Pressure ◽  
Alkyl Chain ◽  
Excess Molar Volumes ◽  
Excess Volumes ◽  
Molar Volumes ◽  
Vibrating Tube Densimeter ◽  
Self Association ◽  
Oxygen Groups ◽  
Volume Effects

Excess molar volumes VmE at 298.15 K and atmospheric pressure for methanol and ethanol + 2,5-dioxahexane, + 3,6-dioxaoctane, + 2,5,8-trioxanonane, + 3,6,9-trioxaundecane, + 5,8,11-trioxapentadecane, + 2,5,8,11-tetraoxadodecane, and + 2,5,8,11,14-pentaoxapentadecane have been obtained from densities measured with an Anton-Paar DMA 602 vibrating-tube densimeter. All the excess volumes are negative over the whole mole fraction range.The VmE curves are shifted to the region rich in the alkanol, increasing their asymmetry with the number of oxygen groups in the polyethers. Results seem to remark the predominant contribution of free volume effects on interactional effects, particularly when the ethers are of the type CH3-(O-CH2CH2)m-CH3. In the case of polyethers with longer n-alkyl chain ends, self-association of methanol and ethanol is more relevant. A short comparative study with results for mixtures with higher 1-alkanols and polyethers is also presented.Key words: experimental, excess volumes, 1-alkanols, polyethers, self-association, free volume effects.

scholarly journals Densities, refractive indices and viscosities of the binary mixtures of dimethyl phthalate or dimethyl adipate with tetrahydrofuran

2014 ◽  
Vol 79 (1) ◽  
pp. 77-87 ◽  
Author(s):  
Andjela Knezevic-Stevanovic ◽  
Jelena Smiljanic ◽  
Slobodan Serbanovic ◽  
Ivona Radovic ◽  
Mirjana Kijevcanin
Keyword(s):  
Binary Mixtures ◽  
Atmospheric Pressure ◽  
Excess Molar Volumes ◽  
Refractive Indices ◽  
Dimethyl Phthalate ◽  
Molar Volumes ◽  
Viscosity Deviations ◽  
Dimethyl Adipate ◽  
Vibrating Tube Densimeter

Densities, refractive indices and viscosities of the binary mixtures of dimethyl phthalate (or dimethyl adipate) + tetrahydrofuran have been measured at eight temperatures (288.15 to 323.15 K) and atmospheric pressure. All measurements were performed using an Anton Paar DMA 5000 digital vibrating-tube densimeter, Anton Paar RXA 156 refractometer and Anton Paar SVM 3000/G2 digital Stabinger viscometer, respectively. From the experimental densities, refractive indices and viscosities, the excess molar volumes, VE, deviations of refractive indices, DnD, and viscosity deviations, Dh, were calculated.

Excess volumes in the methanol-tert-amyl methyl ether system at 298.15 K

1987 ◽  
Vol 52 (1) ◽  
pp. 45-47 ◽  
Author(s):  
Jan Linek ◽  
Svatoslava Bernatová
Keyword(s):  
Methyl Ether ◽  
Excess Volumes ◽  
Vibrating Tube Densimeter ◽  
Ether System

Excess volumes have been measured by means of a vibrating-tube densimeter in the methanol - tert-amyl methyl ether system at 298.15 K. The excess volumes are negative over the whole concentration range.

Densities, excess molar volumes, and refractive indices of ethyl acetate and aromatic hydrocarbon binary mixtures

2002 ◽  
Vol 34 (7) ◽  
pp. 995-1004 ◽  
Author(s):  
J.M. Resa ◽  
C. González ◽  
S. Ortiz de Landaluce ◽  
J. Lanz
Keyword(s):  
Aromatic Hydrocarbon ◽  
Ethyl Acetate ◽  
Binary Mixtures ◽  
Excess Molar Volumes ◽  
Refractive Indices ◽  
Molar Volumes

Excess molar volumes and refractive indices of cis-9-octadecenoic acid + n-alkanes or alkan-1-ols at 298.15 K

1993 ◽  
Vol 38 (4) ◽  
pp. 512-515 ◽  
Author(s):  
Cayetano Yanes ◽  
Alfredo Maestre ◽  
Pilar Perez-Tejeda ◽  
Juan J. Calvente
Keyword(s):  
Octadecenoic Acid ◽  
Excess Molar Volumes ◽  
Refractive Indices ◽  
Molar Volumes

Excess molar volumes and enthalpies of { an alkanol +tert -amyl methyl ether ( TAME )}

2000 ◽  
Vol 32 (11) ◽  
pp. 1569-1579 ◽  
Author(s):  
Elena N Rezanova ◽  
Klaus Kammerer ◽  
Rüdiger N Lichtenthaler
Keyword(s):  
Methyl Ether ◽  
Excess Molar Volumes ◽  
Molar Volumes

Densities, refractive indices and excess molar volumes for binary mixtures of protic ionic liquids with methanol at T=293.15 to 313.15K

2011 ◽  
Vol 159 (3) ◽  
pp. 211-219 ◽  
Author(s):  
Kiki Adi Kurnia ◽  
Malyanah M. Taib ◽  
M.I. Abdul Mutalib ◽  
T. Murugesan
Keyword(s):  
Ionic Liquids ◽  
Binary Mixtures ◽  
Excess Molar Volumes ◽  
Refractive Indices ◽  
Protic Ionic Liquids ◽  
Molar Volumes

Densities, Refractive Indices, and Excess Molar Volumes of Water + Methanol + 2-Methoxy-2-methylpropane at 298.15 K

1995 ◽  
Vol 40 (3) ◽  
pp. 647-649 ◽  
Author(s):  
Alberto Arce ◽  
Jose Martinez-Ageitos ◽  
Jose Mendoza ◽  
Ana Soto
Keyword(s):  
Excess Molar Volumes ◽  
Refractive Indices ◽  
Molar Volumes

Densities, refractive indices and excess properties of mixing of the n-octanol + 1,4-dioxane + 2-butanol ternary system at 298.15 K

2000 ◽  
Vol 78 (8) ◽  
pp. 1121-1127 ◽  
Author(s):  
Alberto G Camacho ◽  
Miguel A Postigo ◽  
Graciela C Pedrosa ◽  
Inés L Acevedo ◽  
Miguel Katz
Keyword(s):  
Ternary System ◽  
Physical Properties ◽  
Binary Mixtures ◽  
Binary Data ◽  
Excess Molar Volumes ◽  
Excess Properties ◽  
Refractive Indices ◽  
Molar Volumes ◽  
Experimental Values

Excess molar volumes and excess refractive indices of the n-octanol + 1,4-dioxane + 2-butanol system and the three corresponding binary mixtures have been determined at 298.15 K by measuring densities and refractive indices. Different expressions exist in the literature to predict these excess properties from binary data. An estimation of excess molar volumes is also evaluated using a modified Heller equation which depends on the refractive indices of the mixtures. A comparison of the predictions of different methods with the experimental values of the physical properties has been made.Key words: excess molar volumes, densities, refractive indices, n-octanol, 1,4-dioxane, 2-butanol, ternary system.

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