SURFACTANT-OIL-WATER SYSTEMS NEAR THE AFFINITY INVERSION. PART XI. pH SENSITIVE EMULSIONS CONTAINING CARBOXYLIC ACIDS
作者:
Zuleyka MENDEZ,
RaquelE. ANTON,
Jean-Louis SALAGER,
期刊:
Journal of Dispersion Science and Technology
(Taylor Available online 1999)
卷期:
Volume 20,
issue 3
页码: 883-892
ISSN:0193-2691
年代: 1999
DOI:10.1080/01932699908943825
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Surfactant-oil-water systems in which the surface active substance is a mixture of carboxylic acid and its sodium salt (soap), exhibit emulsion property maps that are consistent with the phase behavior and the general emulsion phenomenology. However they present specific features such as an extended C+multiple emulsion region and a skinked A+W/O emulsion zone. In this case the aqueous phase pH drives the relative hydrophilicity of the acid/salt mixture at interface and plays the role of the most sensitive formulation variable. Studied systems contain C10 to C14 carboxylic acid, NaCl brine and a light distillation cut, as well as alcohols.
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