Surface tensions and densities of H2SO4 + NH3 + water solutions

Details Surface tensions and densities of H2SO4 + NH3 + water solutions Surface tensions and densities of H2SO4 + NH3 + water solutions

Aug 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3216806h&link_type=abstract

Geophysical Research Letters, Volume 32, Issue 16, CiteID L16806

Physics

2

Atmospheric Composition And Structure: Aerosols And Particles (0345, 4801, 4906), Atmospheric Processes: Clouds And Aerosols, Atmospheric Processes: General Or Miscellaneous

Scientific paper

The static surface tensions and densities of ternary H2SO4 + NH3 + H2O solutions were measured at about 298 K using the Wilhelmy plate method. The mole fractions of H2SO4 ranged from 0 to 0.45 (0 to 82 wt%) and the mole fractions of NH3 from 0 to 0.26 (0 to 25 wt%). The available mole fractions were limited by the concentrations of the original aqueous ammonia solution and salt formation during mixing of sulfuric acid and ammonia. At constant mole fractions of H2SO4, the surface tension reaches its highest value when the mole fraction ratio between NH3 and H2SO4 is 2, corresponding to the binary solution of (NH4)2SO4 + water. The surface tensions and densities are presented, and expressed as polynomials as a function of sulfuric acid and ammonia mole fractions.

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