Original scientific paper

Methorics of the Precipitation Processes. XXIV. Flocculation Phenomena of Non-Ionic Surface-Active Agents on Silver Iodide Sols

Đ. Težak ; »Ruder Boskovic« Institute, Zagreb, Croatia, Yugoslavia
V. Hrust ; »Ruder Boskovic« Institute, Zagreb, Croatia, Yugoslavia
S. Heimer ; »Ruder Boskovic« Institute, Zagreb, Croatia, Yugoslavia
B. Težak ; »Ruder Boskovic« Institute, Zagreb, Croatia, Yugoslavia
M. Wrischer ; »Ruder Boskovic« Institute, Zagreb, Croatia, Yugoslavia

Abstract

An explanation concerning the flocculation and stabilization
action of non-ionic surface-active agents (NSAA) T-X-305 and
T-X-705 on the negatively and positively charged silver iodide
stable sols was attempted by means of tyndallometric and microscopic
investigations.
The flocculation phenomena were found to occur in the concentrational
region of 10-7 to 10-4 mol dm·3 of triton. The influence
of temperature, time, and sol concentration on the kinetics of the
formation of colloid particles was also examined . The mechanism
of flocculation· processes was suggested by assuming that the flocculation
and stabilization of Ag! colloid in the presence of NSAA
is a heterogeneous precipitation characterized by the critical concentrational
and temporal parameters.

Keywords

Hrčak ID:

194525

URI

https://hrcak.srce.hr/194525

Publication date:

15.11.1980.

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