Theory of phase equilibria and closed‐loop liquid–liquid immiscibility for model aqueous solutions of associating chain molecules: Water +alkanol mixtures

1992 ◽  
Vol 97 (11) ◽  
pp. 8672-8691 ◽  
Author(s):  
Daron G. Green ◽  
George Jackson
Keyword(s):  
Aqueous Solutions ◽  
Phase Equilibria ◽  
Closed Loop ◽  
Liquid Immiscibility ◽  
Chain Molecules

Phase Equilibria of CO2 Hydrate in CaCl2–MgCl2 Aqueous Solutions

2014 ◽  
Vol 59 (8) ◽  
pp. 2630-2633 ◽  
Author(s):  
Zhen Long ◽  
Li Zha ◽  
Deqing Liang ◽  
Dongliang Li
Keyword(s):  
Aqueous Solutions ◽  
Phase Equilibria

THE SURFACE TENSION OF SLIGHTLY SOLUBLE FATTY ACIDS

1946 ◽  
Vol 24a (1) ◽  
pp. 8-14 ◽  
Author(s):  
D. G. Douglas ◽  
C. A. MacKay
Keyword(s):  
Fatty Acids ◽  
Surface Tension ◽  
Aqueous Solutions ◽  
Capillary Rise ◽  
Stable State ◽  
Melting Points ◽  
Considerable Time ◽  
Dilute Solutions ◽  
Chain Molecules ◽  
Capillary Rise Method

Surface tension measurements have been made on normal heptylic, pelargonic, capric, and lauric acids above their melting points and on aqueous solutions of heptylic, pelargonic, capric, and undecylic acids, at various concentrations. A modified capillary rise method was employed. The results indicate that the surface does not reach the stable state at once but requires considerable time, being slower for more dilute solutions and longer chain molecules. Evidence is given for the existence of a monolayer of closely packed molecules, with long axes perpendicular to the surface, each molecule occupying an area of approximately 25 Å for heptylic acid.

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