Densities, Partial Molar Volumes at Infinite Dilution, Side-Chain Partial Molar Volumes, and Transfer Volumes of Dipeptides in Sucrose and 2,3-Butanediol Aqueous Solutions atT= (283.15 to 333.15) K

2011 ◽  
Vol 56 (3) ◽  
pp. 627-637 ◽  
Author(s):  
Nandhibatla V. Sastry ◽  
Pinakin H. Valand ◽  
Pradip M. Macwan
Keyword(s):  
Aqueous Solutions ◽  
Infinite Dilution ◽  
Partial Molar Volumes ◽  
Side Chain ◽  
Molar Volumes ◽  
Transfer Volumes

scholarly journals Volumetric Properties of Aqueous Solutions of Ethylene Glycols in the Temperature Range of 293.15–318.15 K

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Omer El-Amin Ahmed Adam ◽  
Ammar Hani Al-Dujaili ◽  
Akl M. Awwad
Keyword(s):  
Thermal Expansion ◽  
Aqueous Solutions ◽  
Thermal Expansion Coefficient ◽  
Expansion Coefficient ◽  
Infinite Dilution ◽  
Partial Molar Volumes ◽  
Volumetric Properties ◽  
Molar Volumes ◽  
Ethylene Glycols ◽  
Increasing Temperature

Densities of aqueous solutions of Ethylene glycol (EG), diethylene glycol (DEG), and triethylene glycol (TEG) were measured at temperatures from 293.15 to 318.15 K and molalities ranging from 0.0488 to 0.5288 mol·kg−1. Volumes of all investigated solutions at a definite temperature were linearly dependent on the solute molality; from this dependence the partial molar volumes at infinite dilution were determined for all solutes. It was found that the partial molar volumes at infinite dilution V-2,0 were concentration independent and slightly increase with increasing temperature. The partial molar volumes at infinite dilution V-2,0 or the limiting apparent molar volumes of ethylene glycols were fitted to a linear equation with the number of oxyethylene groups (n) in the solute molecule. From this equation a constant contribution of the terminal (OH) and the (CH2CH2O) groups to the volumetric properties was obtained. The thermal expansion coefficient (α1,2) for all investigated solutions was calculated at temperatures from 293.15 to 318.15 K. The thermal expansion coefficients for all solutes increase with increasing temperature and molality. Values of (α1,2) were higher than the value of the thermal expansion coefficient of the pure water.

On the calculation of partial molar volumes at infinite dilution from experimental density data

2020 ◽  
pp. 1-7
Author(s):  
Jorge Álvarez Juliá ◽  
María Del Carmen Grande ◽  
Carmen Raquel Barrero ◽  
Carlos Miguel Marschoff
Keyword(s):  
Infinite Dilution ◽  
Partial Molar Volumes ◽  
Density Data ◽  
Molar Volumes ◽  
Experimental Density

Partial molar volumes at infinite dilution for CmH2m+2 as solute in CnH2n+2 as solvent for m, n = 6 to 16 at 298.15 K

1987 ◽  
Vol 19 (5) ◽  
pp. 555-559 ◽  
Author(s):  
Hidenori Itsuki ◽  
Seiji Terasawa ◽  
Kazuaki Shinohara ◽  
Hiroshi Ikezawa
Keyword(s):  
Infinite Dilution ◽  
Partial Molar Volumes ◽  
Molar Volumes
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