Please use this identifier to cite or link to this item:
|Title:||Effects of organics on efflorescence relative humidity of ammonium sulfate or sodium chloride particles|
|Keywords:||Efflorescence relative humidity|
|Source:||Gao, Y., Yu, L.E., Chen, S.B. (2008-06). Effects of organics on efflorescence relative humidity of ammonium sulfate or sodium chloride particles. Atmospheric Environment 42 (19) : 4433-4445. ScholarBank@NUS Repository. https://doi.org/10.1016/j.atmosenv.2008.02.002|
|Abstract:||The effect of a water-soluble organics on efflorescence relative humidity (ERH) of ammonium sulfate or sodium chloride particles is theoretically investigated on the basis of a previously developed model for ERH of single-component particles [Gao et al., 2006. Efflorescence relative humidity for ammonium sulfate particles Journal of Physical Chemistry A 110, 7602-7608]. The central assumption made is that one species nucleates much faster than the other, and the critical nuclei formation of the former controls the rate of efflorescence. The water-soluble organics (WSOs) appeared to suppress the ERH of salt particles; the decrease in ERH can be more than 30% RH when the mole fraction of WSO is larger than 0.5. The developed model satisfactorily makes quantitative prediction only for the ERH of mixed particles containing WSO with low-surface active nature (glycerol, levoglucosan, and malonic acid). For mixed particles having more surface-active WSO (glutaric and maleic acid), the inaccurate prediction is attributable to the negligence of interactions between solutes and the estimation of interfacial tension between nuclei and the mixed solution. © 2008 Elsevier Ltd. All rights reserved.|
|Source Title:||Atmospheric Environment|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Dec 13, 2017
WEB OF SCIENCETM
checked on Nov 14, 2017
checked on Dec 9, 2017
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.