Activities and osmotic coefficients of tropospheric aerosols: (NH4)2SO4(aq) and NaCl(aq)

Moonis R. Ally; Simon L. Clegg; Jerry Braunstein; John M. Simonson

doi:10.1006/jcht.2000.0825

Activities and osmotic coefficients of tropospheric aerosols: (NH₄)₂SO_4(aq) and NaCl_(aq)

Moonis R. Ally, Simon L. Clegg, Jerry Braunstein, John M. Simonson

Research output: Contribution to journal › Article › peer-review

41 Citations (Scopus)

Abstract

The theory of multilayer adsorption for concentrated aqueous electrolytes developed by Ally and Braunstein (1998) is used to calculate the thermodynamic activities and osmotic coefficients of supersaturated solutions of (NH4)2SO4(aq) and NaCl (aq) which are among man-made aerosols of atmospheric importance. The basis of the model is the postulate of Stokes and Robinson that concentrated aqueous electrolytes may be viewed as an irregular ionic lattice structure. Application to the electrolytes mentioned above is a special case of the generalized results which are proven (Ally and Braunstein, Braunstein and Ally) to be consistent with the Gibbs–Duhem equation. Calculated thermodynamic properties are compared against experimental data from isopiestic and electrodynamic balance (EDB) measurements.

Original language	English
Pages (from-to)	905-915
Number of pages	11
Journal	Journal of Chemical Thermodynamics
Volume	33
Issue number	8
DOIs	https://doi.org/10.1006/jcht.2000.0825
Publication status	Published - 2001

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10.1006/jcht.2000.0825

Cite this

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title = "Activities and osmotic coefficients of tropospheric aerosols: (NH4)2SO4(aq) and NaCl(aq)",

abstract = "The theory of multilayer adsorption for concentrated aqueous electrolytes developed by Ally and Braunstein (1998) is used to calculate the thermodynamic activities and osmotic coefficients of supersaturated solutions of (NH4)2SO4(aq) and NaCl (aq) which are among man-made aerosols of atmospheric importance. The basis of the model is the postulate of Stokes and Robinson that concentrated aqueous electrolytes may be viewed as an irregular ionic lattice structure. Application to the electrolytes mentioned above is a special case of the generalized results which are proven (Ally and Braunstein, Braunstein and Ally) to be consistent with the Gibbs–Duhem equation. Calculated thermodynamic properties are compared against experimental data from isopiestic and electrodynamic balance (EDB) measurements.",

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AU - Ally, Moonis R.

AU - Clegg, Simon L.

AU - Braunstein, Jerry

AU - Simonson, John M.

PY - 2001

Y1 - 2001

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AB - The theory of multilayer adsorption for concentrated aqueous electrolytes developed by Ally and Braunstein (1998) is used to calculate the thermodynamic activities and osmotic coefficients of supersaturated solutions of (NH4)2SO4(aq) and NaCl (aq) which are among man-made aerosols of atmospheric importance. The basis of the model is the postulate of Stokes and Robinson that concentrated aqueous electrolytes may be viewed as an irregular ionic lattice structure. Application to the electrolytes mentioned above is a special case of the generalized results which are proven (Ally and Braunstein, Braunstein and Ally) to be consistent with the Gibbs–Duhem equation. Calculated thermodynamic properties are compared against experimental data from isopiestic and electrodynamic balance (EDB) measurements.

U2 - 10.1006/jcht.2000.0825

DO - 10.1006/jcht.2000.0825

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JO - Journal of Chemical Thermodynamics

JF - Journal of Chemical Thermodynamics

SN - 0021-9614

IS - 8

ER -