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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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        Abstract - Issue Nov 2016, 37 (6)                                                                                                             Back

nstantaneous and historical temperature effects on a-pinene

Thermo physical properties of organic compound and

its impact on environment


K. Sathya1, R. Baskaran2 and T.R. Kubendran3

 1Department of Biotechnology, Rajalakshmi Engineering College, Chennai-602 105, India

2Department of Chemical Engineering, St. Joseph's College of Engineering, Chennai-600 119, India

3Department of Chemical Engineering, A.C. College of Technology, Anna University,? Chennai-600 025, India

*Corresponding Author E-mail:



 Publication Data

Paper received:

20 September 2015


Revised received:

18 June 2016



20 August 2016



Liquid mixtures have attracted considerable attention due to their unusual behaviour. In pharmaceutical, chemical and biochemical industries, organic compounds are used as an intermediate and are normally handled in fluid form and as a consequence, the physical, chemical, and thermo physical properties of fluids assume importance due to their environmental impact. The emission of volatile or partially volatile compounds must be reduced to appropriate levels before exposing industrial streams to atmosphere. One of the most widespread technologies used to achieve that reduction is activated carbon fixed bed adsorption. These processes are operated at different temperatures. Design of such operations require quantitative estimates of thermo physical properties of fluid mixtures and equilibrium constant. In the present study, densities, viscosities and ultrasonic velocitiesof paraanisaldehyde-ethylacetate organic mixture was measured over the entire mole fractions at 308.15, 318.15 and 328.15K.Studies on determination of different thermo physical properties of liquid mixtures within wide range of composition and temperature are valuable sources of information that might be used to examine relation between the internal structure of the system and its physical properties. Excess Gibbs free energy was obtained at different temperature from the measured properties and the spontaneity of the process was discussed.The impact of organic compound, based on Gibbs free energy values were also discussed. The positive Gibbs free energy revealed that the adsorption is not favourable (non-spontaneity) and hence the impact on the environment of the binary liquid mixtures is high at 308.15, 318.15 and 328.15K.   



 Key words

Density, Excess gibbs free energy, Viscosity 


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