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Freezing point behavior of the ternary reciprocal salt pair system involving the morpholine and 2,2艂‐dipyridylamine salts of stearic and palmitic acids
Author(s) -
Mod Robert R.,
Magne Frank C.,
Skau Evald L.
Publication year - 1962
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02637661
Subject(s) - eutectic system , chemistry , freezing point , phase diagram , morpholine , stearic acid , salt (chemistry) , thermodynamics , melting point , ternary operation , crystallization , double salt , dibasic acid , crystallography , phase (matter) , organic chemistry , microstructure , physics , computer science , programming language
Binary and quasi‐binary freezing point data have been obtained to establish the freezing point diagram for the ternary reciprocal salt pair system, involving the morpholine and 2,2艂‐dipyridylamine salts of stearic and palmitic acids. The diagram shows that there are six crystallization surfaces representing equilibrium with crystals of MS, MP, DS, DP, DSƃDP, and MSƃDP. The compositions and primary freezing points of the six peritectic and five eutectic mixtures have been determined. From the diagram it is possible to predict for any molten mixture of these four salts under equilibrium conditions the temperature at which crystals of each component will appear on cooling, the yields of these crystals and the composition of the liquid phase at various temperatures, and the temperature at which maximum yields of crystals of the specific salts can be obtained.