Density and Surface Tension of Aqueous H<sub>2</sub>SO<sub>4</sub>at Low Temperature

Myhre, C. E. Lund; Nielsen, Claus J.; Saastad, Ole W.

doi:10.1021/je980013g

Cited by 67 publications

(93 citation statements)

References 24 publications

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“…noted the validity region and accuracy of their parametrisation as presented in Table 9. As a sensitivity analysis compared the nucleation rates obtained using their formulas to rates calculated using the formulas given by Myhre et al (1998), and they reported that the difference in nucleation rates was at most one order of magnitude, in most cases just 10-20%.…”

Section: Binary Homogeneous Nucleation Of Water-sulfuric Acidmentioning

confidence: 99%

Particle Emissions from Domestic Gas Cookers

Glarborg

Livbjerg

Wagner

et al. 2010

Combustion Science and Technology

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Section: Binary Homogeneous Nucleation Of Water-sulfuric Acidmentioning

confidence: 99%

Particle Emissions from Domestic Gas Cookers

Glarborg

Livbjerg

Wagner

et al. 2010

Combustion Science and Technology

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“…Surface tension, density and dielectric constant data for $100% sulphuric acid were not available at 400 K. Instead, the surface tension at 300 K, 0.0725 N m )1 was used (Myhre et al, 1998). Densities of H 2 SO 4 at 300 K were quoted by Myhre et al (1998) for mass fractions of water from 0.123-0.765. A fourth-order polynomial fit to the density variation with mass fraction at 300 K was used to estimate the density of 100% sulphuric acid at 300 K to be 1000 kg m )3 .…”

Section: Electrification and Venusian Cloud Formationmentioning

confidence: 99%

Atmospheric Electrification in the Solar System

Aplin

2006

Surv Geophys

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Atmospheric electrification is not a purely terrestrial phenomenon: all Solar System planetary atmospheres become slightly electrified by cosmic ray ionisation. There is evidence for lightning on Jupiter, Saturn, Uranus and Neptune, and it is possible on Mars, Venus and Titan. Controversy surrounds the role of atmospheric electricity in physical climate processes on Earth; here, a comparative approach is employed to review the role of electrification in the atmospheres of other planets and their moons. This paper reviews the theory, and, where available, measurements, of planetary atmospheric electricity which is taken to include ion production and ion-aerosol interactions. The conditions necessary for a planetary atmospheric electric circuit similar to Earth's, and the likelihood of meeting these conditions in other planetary atmospheres, are briefly discussed. Atmospheric electrification could be important throughout the solar system, particularly at the outer planets which receive little solar radiation, increasing the relative significance of electrical forces. Nucleation onto atmospheric ions has been predicted to affect the evolution and lifetime of haze layers on Titan, Neptune and Triton. Atmospheric electrical processes on Titan, before the arrival of the Huygens probe, are summarised. For planets closer to Earth, heating from solar radiation dominates atmospheric circulations. However, Mars may have a global circuit analogous to the terrestrial model, but based on electrical discharges from dust storms. There is an increasing need for direct measurements of planetary atmospheric electrification, in particular on Mars, to assess the risk for future unmanned and manned missions. Theoretical understanding could be increased by cross-disciplinary work to modify and update models and parameterisations initially developed for a specific atmosphere, to make them more broadly applicable to other planetary atmospheres.

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“…Binary clusters are singly charged. Values of input parameters have been adopted from CRC Handbook of Chemistry and Physics (2002), Kulmala et al (1998) and Myhre et al (1998). Figures 1-4 show the comparisons of the cluster sizes as functions of ambient temperature (T), relative humidity (RH), and the concentration of sulfuric acid vapour calculated from Eqs.…”

Section: Resultsmentioning

confidence: 99%

Formation of binary ion clusters from polar vapours: effect of the dipole-charge interaction

Nadykto

2004

Atmos. Chem. Phys.

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Abstract. Formation of binary cluster ions from polar vapours is considered. The effect of vapour polarity on the size and composition of the critical clusters is investigated theoretically and a corrected version of classical KelvinThomson theory of binary ion-induced nucleation is derived. The model predictions of the derived theory are compared to the results given by classical binary homogeneous nucleation theory and ion-induced nucleation theory. The calculations are performed in wide range of the ambient conditions for a system composed of sulfuric acid and water vapour. It is shown that dipole-charge interaction significantly decreases the size of the critical clusters, especially under the atmospheric conditions when the size of critical clusters is predicted to be small.

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Density and Surface Tension of Aqueous H₂SO₄at Low Temperature

Cited by 67 publications

References 24 publications

Particle Emissions from Domestic Gas Cookers

Particle Emissions from Domestic Gas Cookers

Atmospheric Electrification in the Solar System

Formation of binary ion clusters from polar vapours: effect of the dipole-charge interaction

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Density and Surface Tension of Aqueous H2SO4at Low Temperature

Cited by 67 publications

References 24 publications

Particle Emissions from Domestic Gas Cookers

Particle Emissions from Domestic Gas Cookers

Atmospheric Electrification in the Solar System

Formation of binary ion clusters from polar vapours: effect of the dipole-charge interaction

Contact Info

Product

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Density and Surface Tension of Aqueous H₂SO₄at Low Temperature