Posted in Contact Angle, Education, Hansen Solubility Parameters, Physical Chemistry

Surface Tension and Density Determination

When moving into our new chemistry building, my graduate student uncovered a relic made in the 1930’s.  It was a cast-iron Du Nuoy ring tensiometer, but we didn’t know that.  We guessed that it had something to do with surface tension, and he did a literature search.  Up popped a 1930’s paper by Harkins and Jordan on the ring method for determining surface tension. 

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