How to find the surface tension of ethanol glycerol mixture?

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Leo Vleugels

Hi,

Your question was addressed in this article: Article Surface tension and interface of different binary systems of...

Personally, I would measure it and not steer blindly on model data. Not because the work done on this topic was bad, far from that the researchers did an excellent job for sure..... but surface tension is very sensitive to low levels of impurities. Both ethanol and glycerol are know to contain such impurities. And even if you take them in their purest form..... both of them pick up water from the atmosphere rapidly consequently changing the observed surface tension.

Kind regards, Leo

Maheshwar Reddy Gopu

Leo Vleugels Thank you.

Luis Verduzco

I recommend that you use the methodology we proposed in 2006. Ramírez-Verduzco et al. Prediction of the surface tension, surface concentration, and the relative Gibbs adsorption isotherm of binary liquid systems. Fluid Phase Equilibria 246 (2006) 119–130.