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Citation: Zheng Guokang, Qiu Liyan, Zhou Xiaoxian. THERMODYNAMICS OF ASSOCIATED SOLUTIONS OF ALCOHOLS IN INERT SOLVENTS[J]. Acta Physico-Chimica Sinica, ;1989, 5(02): 168-172. doi: 10.3866/PKU.WHXB19890208 shu

THERMODYNAMICS OF ASSOCIATED SOLUTIONS OF ALCOHOLS IN INERT SOLVENTS

1.
Deparment of Chemistry; Lanzhou University; Lanzhou

Received Date: 5 September 1987
Available Online: 15 April 1989

Under the condition of infinite dilution, the activity coefficients previously obtained have been treated by Kretschmer-Wiebe association model combining with Hiidebrand-Scatchard formula. In the binary systems of alcohol and alkanes,no relationship between the self association equilibrium constant and the number of carbon atoms of alkane has been found. The equilibrium constants decrease in the order: methanol>ethanol>n-propanol>n-butanol; n-propanol>isopropanol; n-butanol>isobutanol>sec-butanol>tert-butanol.
The carbon number and isomeric form of the alcohols have little effect on the calculated enthalpy of H-bonding formation, the average value of which is -24.2(+-)1.5 kJ.mol~(-1).
In the systems of alcohol and squalene, the calculated cross interaction coefficients l_(AB), which reflects the degree deviated from Hildebrand-Scatchard formula are negative, the absolute values of which are less than 0.1, and decrease in the order:
methanol>ethanol>n-propanol>n-butanol;
p-propanol>isopropanol;
n-butanol>isobutanol>sec-butanol>tert-butanol.
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