THE JOURNAL OF
PHYSICAL CHEMISTRY (Registered in U. S.P a t e n t Office)
VOLUME59
(Copyright, 1955 by the American Chemical Society)
OCTOBER 25, 1055
NWhlBEK
10
THE FOAMING OF SODIUN LAURSTE SOLUTIOXSFACTORS INFLUESCING FOAM STABILITY BY
hr.
CA1\IP .4ND
K. DURHAM
Research Deparlinont, L.nileuer Limited Port Sunlight, Cheshire, England Received January 1 2 , 1966
The effects of addition of electrolytes on the foam stability, surface tension and surface viscosity of 0.1% solutions of Rodium laurate adjusted to pH 10 have been studied. The electrolytes employed had no significant effect on surface viscosity, but, produced a progressive lowel,ing in surface ten8ion which is a function of cation concentrabion. The size and concentration of the hydrated cations were found to influence foam stability; thus the alkali metals increase foam stability in the order Li < N a + < I
