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The coalescence of n‐hexane droplets in aqueous solutions of n‐alcohols
Author(s) -
Sagert Norman H.,
Quinn Michael J.
Publication year - 1979
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450570105
Subject(s) - hexane , dodecanol , coalescence (physics) , chemistry , hexanol , aqueous solution , butanol , octanol , n butanol , nozzle , ethanol , chromatography , organic chemistry , chemical engineering , alcohol , analytical chemistry (journal) , thermodynamics , partition coefficient , physics , astrobiology , engineering
Coalescence times, measured by high speed cinematography, are reported for n‐hexane droplets formed and grown on adjacent nozzles in equilibrated aqueous solutions of ethanol, n‐butanol, n‐hexanol, n‐octanol, n‐decanol and n‐dodecanol. The drops remained attached to the nozzles throughout the coalescence process. Coalescence times increased when alcohols were added to the system. Very similar results were obtained for the alcohols n‐hexanol to n‐dodecanol. When these alcohols, which are much more soluble in n‐hexane than in water, were present, the observed coalescence times could be accounted for best by considering diffusion processes occurring in the n‐hexane. For ethanol and n‐butanol, which are more soluble in water, diffusion processes occurring in the water had to be considered as well.