Original scientific paper

The Behaviour of the System Gelatin - Ferric Chloride -Neutral Electrolyte - Hydrochloric Acid or Sodium Hydroxide in an Aqueous Medium.* I. Phenomenology and the Method of Investigation by Division into Simpler Systems

R. Wolf ; Laboratory of Physical Chemstry , Faculty of Science, University of Zagreb, Zagreb, Croatia, Yugoslavia
B. Težak ; Laboratory of Physical Chemstry , Faculty of Science, University of Zagreb, Zagreb, Croatia, Yugoslavia

Abstract

The behaviour of the four-component system: gelatin-FeC13 - NaCl (neutral electrolyte) - pH (HCl or NaOH) was investigated. The regions of the gel formation, of the precipitation of brown Fe(OH)3 flocks , of flocks and gel appearing together, and of the clear solution, were investigated and represented on a threedimensional diagram (Fig. 13.). The gelatin concentration was kept at the constant value of 0.4250/o, but the concentra tions of FeCl3,
the concentrations of NaCl and the pH values were varied and used as coordinates on Fig. 13.

Keywords

Hrčak ID:

246327

URI

https://hrcak.srce.hr/246327

Publication date:

30.12.1957.

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