Croatica Chemica Acta, Vol. 49 No. 1, 1977.
Original scientific paper
Characterization of the Precipitation Processes of Negatively Charged Silver Bromide by the Influence of Non-Ionic Surface-Active Agent and Temperature Change
V. Hrust
; Department of Physical Chemistry, Institute of Chemistry, University of Zagreb, POB 163, Zagreb, Croatia, Yugoslavia
B. Težak
; Department of Physical Chemistry, Institute of Chemistry, University of Zagreb, POB 163, Zagreb, Croatia, Yugoslavia
Abstract
The kinetics of precipitation in sols in statu nascendi was
studied near the complex solubiLi1ty limit of the negatively charged
silver bromide precipitate. Different precipitation processes were observed by the analysis of the critical time of precipitation and were characterized by the influence of the non-ionic surface-active agent Triton-X-305 and by the change of temperature during the precipitation.
The results show that two processes of the growth of seoondary
str.uctur.es from primary particles take place in relation to the potassium bromide concentrations in excess: aggregation which takes
place at lower, and crystallization which occurs at higher concentrations
of potassium bromide in excess.
Keywords
Hrčak ID:
196407
URI
Publication date:
25.3.1977.
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