Skip to main content

Research Repository

Advanced Search

Evaporation of liquids from structured and non-structured mixtures

Beverley, Katharine Jane


Katharine Jane Beverley


John H. Clint

Paul D. I. Fletcher


The work presented in this thesis describes the evaporation rates of a wide variety of samples obtained under a controlled gas flow using a gravimetric technique. Evaporation rates for pure liquids with vapour pressures ranging from 0.1 to 500 Torr, water contained in silica particles, alkane/squalane mixtures, hexane gelled with silica particles, surfactant/water mixtures, immiscible layered liquid mixtures and emulsions have been determined. For pure liquids and simple unstructured liquid mixtures, the evaporation rate is limited by diffusion through a stagnant vapour layer at the liquid surface. As the degree of structure within the liquid mixture increases, the time taken for concentration gradients developing in the evaporation process to relax becomes longer relative to the time taken for diffusion through the stagnant vapour layer. For highly structured liquid mixtures, the rate limiting process switches to diffusion and convection within the liquid mixture. In the case of creamed oil-in-water emulsions, evaporation of the continuous water phase is limited by diffusion through the stagnant vapour layer, whilst the evaporation rate of the emulsified oil is consistent with a mechanism in which the oil drops remain separated from the vapour phase by a thin water film. Oil transport from the drops to the vapour occurs by diffusion of dissolved oil across this film.


Beverley, K. J. (2004). Evaporation of liquids from structured and non-structured mixtures. (Thesis). University of Hull. Retrieved from

Thesis Type Thesis
Deposit Date Aug 21, 2013
Publicly Available Date Feb 23, 2023
Keywords Chemistry
Public URL
Additional Information Department of Chemistry, The University of Hull
Award Date Jan 1, 2004


Thesis (8.9 Mb)

Copyright Statement
© 2004 Beverley, Katharine Jane. All rights reserved. No part of this publication may be reproduced without the written permission of the copyright holder.

Downloadable Citations