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We investigated the partial enthalpy of mixing in the eight component system (Ag-Bi-Cd-Ga-In-Pb-Sn-Zn), calculated the solubility of Anthracene in a seven component organic solvent and studied the properties of n-alkanes with 20 to 42 carbon atoms. In systems with 8 components, we have 28 binary interaction parameters: thus uncertainty in one, two or three parameters affects the calculated values...
We have applied our model to the enthalpy and excess Gibbs energy of mixing data of the binary systems Ethanol-Methylcyclohexane, Water-methylacetate, -ethylacetate, -butylacetate and -pentylacetate, and to the ternary systems Acetonitrile-Benzene-Carbon Tetrachloride, Ethanol--Chloroform--1,4-Dioxane, Cyclohexane--2-Propanol--Water, and to the quaternary system Ethyl Alcohol--n-Hexane--Benzene--Methylcyclopentane...
Group discussions centered on four major topics.(1) The importance to solution modeling of realistic extrapolations of C p pure liquids below their melting points was underlined.(2) The use of interpolation models in the dilute solution ranges of multicomponent solutions was discussed. The commonly used Muggianu model is not good in this respect, the Toop model being more physically realistic...
We analyzed the thermodynamic data of the binary system Bi 2 O 3 -B 2 O 3 . The phase diagram contains five compounds, of which four melt congruently, and a miscibility gap, close to pure B 2 O 3 . The three sets of transformation data of Bi 2 O 3 , the enthalpy of mixing data in the liquid, and the critical point of the miscibility...
The solubility of very slightly soluble salts in water, CaSO 4 and PbCl 2 , were analyzed in the presence of another, soluble salt. In one case, CaCl 2 addition, no interaction between the salt (CaSO 4 ) and the third component was found. In all the others cases new interaction parameters were needed to describe the increased solubility. These interaction parameters...
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