Viscosities, densities and excess properties of binary mixtures of di-(2-ethyl hexyl) phosphoric acid (DEHPA) with benzene, toluene and ortho-xylene

2001 ◽  
Vol 94 (3) ◽  
pp. 233-248 ◽  
Author(s):  
N. Swain ◽  
S.K. Singh ◽  
D. Panda ◽  
V. Chakravortty
Keyword(s):  
Phosphoric Acid ◽  
Binary Mixtures ◽  
Excess Properties ◽  
Ethyl Hexyl ◽  
Benzene Toluene

scholarly journals Volumetric, Viscometric and Excess Properties of Binary Mixtures of 1-Iodobutane with Benzene, Toluene, o-Xylene, m-Xylene, p-Xylene, and Mesitylene at Temperatures from 303.15 to 313.15 K

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
Sangita Sharma ◽  
Khushbu Thakkar ◽  
Paras Patel ◽  
Madhuresh Makavana
Keyword(s):  
Binary Mixtures ◽  
Excess Molar Volumes ◽  
Polynomial Equation ◽  
Pure Component ◽  
Excess Properties ◽  
Excess Gibbs Free Energy ◽  
Free Energy Of Activation ◽  
Empirical Relations ◽  
Benzene Toluene ◽  
Experimental Values

Densities and viscosities have been determined for binary mixtures of 1-iodobutane with benzene, toluene, o-xylene, m-xylene, p-xylene, and mesitylene at 303.15, 308.15, and 313.15 K for the entire composition range at atmospheric pressure. The excess molar volumes, , deviations in viscosity, Δη, and excess Gibbs’ free energy of activation flow, Δ have been calculated from the experimental values. The experimental data were fitted to Redlich-Kister polynomial equation. The variations of these parameters with composition of the mixtures and temperature have been discussed in terms of molecular interactions occurring in these mixtures. Further, the viscosities of these binary mixtures were calculated theoretically from their corresponding pure component data by using empirical relations like Bingham, Arrhenius and Eyring, Kendall and Munroe, Hind, Katti and Chaudhari, Grunberg and Nissan, and Tamura and Kurata. Comparison of various interaction parameters has been expressed to explain the intermolecular interactions between iodobutane and selected hydrocarbons.

The extraction of beryllium(II) by di-(2-ethyl hexyl)-phosphoric acid from sulphate media

1978 ◽  
Vol 45 (2) ◽  
pp. 357-364 ◽  
Author(s):  
I. S. El-yamani ◽  
M. Y. Farah ◽  
E. N. Abd El-Messieh
Keyword(s):  
Phosphoric Acid ◽  
Ethyl Hexyl ◽  
Sulphate Media
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