thesIt » pure compound http://lakm.us/thesit computer science research log in semi microbloging style Tue, 24 Aug 2010 21:34:55 +0000 http://wordpress.org/?v=2.9 en hourly 1 Generalized Relation Between Surface Ten … http://lakm.us/thesit/218/generalized-relation-between-surface-ten/ http://lakm.us/thesit/218/generalized-relation-between-surface-ten/#comments Thu, 18 Feb 2010 23:14:05 +0000 Arif http://xp-racy.lan/s2/?p=218 Generalized Relation Between Surface Tension and Viscosity: a Study on Pure and Mixed n-alkanes. A. J. Queimada, I. M. Marrucho , E. H. Stenby, J. A. P. Coutinho. Paper presented at the Fifteenth Symposium on Thermophysical Properties, June 22-27, 2003, Boulder, Colorado, USA.

Both for pure compounds and mixtures.

p385.pdf

proceeding info published in Fluid Phase Equilibria

]]> http://lakm.us/thesit/218/generalized-relation-between-surface-ten/feed/ 0 Surface Tension Prediction for Pure Flui … http://lakm.us/thesit/164/surface-tension-prediction-for-pure-flui/ http://lakm.us/thesit/164/surface-tension-prediction-for-pure-flui/#comments Sat, 02 Jan 2010 05:16:12 +0000 Arif http://xp-racy.lan/s2/?p=164 Surface Tension Prediction for Pure Fluids
Joel Escobedo and G. Ali Mansoori. AIChE Journal, Volume 42, No. 5, pp. 1425-1433, May 1996. (this work is cited in their next work: Escobedo 1998)

PureFluidsSTprediction.pdf

]]> http://lakm.us/thesit/164/surface-tension-prediction-for-pure-flui/feed/ 0 The proposed 1996: relating the surface … http://lakm.us/thesit/154/the-proposed-1996-relating-the-surface/ http://lakm.us/thesit/154/the-proposed-1996-relating-the-surface/#comments Fri, 01 Jan 2010 18:19:05 +0000 Arif http://xp-racy.lan/s2/?p=154 Escobedo and Mansoori (AIChE J. 42(5): 1425, 1996) Found original paper: check Escobedo 1996

The proposed 1996 paper relates the surface tension of mixtures to bulk-phase concentrations and properties (i.e. densities). Surface tension of pure organic fluids σ:

\sigma=[P(\rho_l-\rho_v)^4]

The two ρ are densities: liquid and vapour.

They introduced parachor (P), a new expression, derived from statistical mechanics (from Macleod equation) which represents the experimental surface tension of 94 different organic compounds within 1.05 AAD% (average absolute deviations).

(Kumar 2005) It expresses the surface tension of a liquid in equilibrium with its own vapour. Historical reference for parachor cited here: Macleod, Sugden, Quayle, Escobedo.

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