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On Negative Silver Iodide Sols in Sodium n-Laurylate Solutions

R. Despotović ; Laboratory of Colloid Chemistry, Ruder Boskovic Institute. 41001 , Zagreb, P. 0. Box 1016, Croatia, Yugoslavia
V. Leskovar ; Laboratory of Colloid Chemistry, Ruder Boskovic Institute. 41001 , Zagreb, P. 0. Box 1016, Croatia, Yugoslavia

Sažetak

This paper describes a ·physico-chemical •study of the interaction
between the anionic surfactant sodium n-laurylate NaL
and the negative stable silver iodide prepared »in statu nascendi«,
with emphasis on the colloid properties of the system in aqueous
media. Negative stable silver iodide sols of 0.001 M contained
NaL solutions from 0.0000001 M to 0.01 M with 0.001 M Na! at
20 °c. Turbidity measurements show the formation of two pronounced
Tyndall maxima; eleatmn microscopy and X-ray diffraction
analysis data show the dependence of crystallite sizes and
sol dens·tties on the concentration of NaL. For the systems examined
under ageing the results obtained indicate, as a reasonable
possibility, that different effects of NaL on negative silver iodide
sol in statu nascendi for systems with NaL below and above the
critical micellar concentration can be proposed.

Ključne riječi

Hrčak ID:

196482

URI

https://hrcak.srce.hr/196482

Datum izdavanja:

20.2.1976.

Posjeta: 476 *