Please use this identifier to cite or link to this item:
Title: Efflorescence relative humidity of mixed sodium chloride and sodium sulfate particles
Authors: Gao, Y.
Yu, L.E. 
Chen, S.B. 
Issue Date: 25-Oct-2007
Citation: Gao, Y., Yu, L.E., Chen, S.B. (2007-10-25). Efflorescence relative humidity of mixed sodium chloride and sodium sulfate particles. Journal of Physical Chemistry A 111 (42) : 10660-10666. ScholarBank@NUS Repository.
Abstract: We study the efflorescence relative humidity (ERH) of particles composed of sodium chloride and sodium sulfate. Both experimental and theoretical investigations are conducted to explore the effects of particle size and mixing ratios between two inorganic materials on ERH. A previously developed theoretical model (Gao et al. J. Phys. Chem. A 2006, 110, 7602; ref 1) is applied as the framework to build a formulation assuming that one salt nucleates much faster than the other, and the critical nuclei formation of the former controls the rate of efflorescence. The predicted ERHs agree favorably with the experimental data, except for particles containing Na2SO4 in a mole fraction of around 0.25. At this composition, our model underestimates the ERH, indicating certain factors involved in the efflorescent processes that are overlooked in our formulation. Relative to particles larger than 40 nm, the Kelvin effect more significantly affects particles smaller than this size. © 2007 American Chemical Society.
Source Title: Journal of Physical Chemistry A
ISSN: 10895639
DOI: 10.1021/jp073186y
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Jan 18, 2022


checked on Jan 11, 2022

Page view(s)

checked on Jan 20, 2022

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.