1967•Transactions of the Faraday SocietyRequires access

Reaction between stearic acid and calcium ions at the air/water interface using surface viscometry. Part 2.—Mixed films of octadecanol and stearic acid

R.P. Enever, N. Pilpel

Abstract

Measurements have been made of the force-area characteristics, surface potentials and surface viscosities of mixed films of octadecanol and stearic acid spread on M/2000 Calcium chloride. The stearic acid portion of the film reacts to form calcium stearate, the reaction obeying ⅔-order kinetics. The octadecanol behaves practically as an inert diluent. The free energy of activation of viscous flow of calcium stearate is about 25 kcal mole–1.

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Key concepts: Stearic acid, Calcium stearate, Chemistry, Diluent, Calcium, Viscometer, Stearate, Kinetics