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Migration during Convective Drying. II–Experimental
Author(s) -
MCDOWELL W.,
MILES L. W. C.
Publication year - 1966
Publication title -
journal of the society of dyers and colourists
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 0037-9859
DOI - 10.1111/j.1478-4408.1966.tb02694.x
Subject(s) - evaporation , convection , diffusion , capillary action , thermodynamics , surface (topology) , chemistry , function (biology) , mechanics , physics , mathematics , geometry , biology , evolutionary biology
In the convective drying of a solution of C. I. Acid Red 1 from the surface of a model capillary system, the concentration of solute has been measured as a function of time and distance from the surface. Analysis of the concentration profiles has shown ( i ) that they are of the expected form, ( ii ) that back‐diffusion is significant near the surface of evaporation, and ( iii ) that they can be approximately described by the equation— The practical significance of these observations is discussed briefly.