The H2SO4 can then condense together with water vapor (and perhaps organic compounds and / or ammonia) to
form a stable cluster of molecules: A new particle is typically 1 - 2 nanometers in diameter.
Not exact matches
The ions help aerosols —
clusters of mainly sulphuric acid and water molecules — to
form and become
stable against evaporation.
In contrast, the system of sulfuric acid and dimethylamine
forms particles much more efficiently because even the smallest
clusters are essentially
stable against evaporation.
WAXS (wide angle x-ray scattering) analysis of the crystalline particles finally
formed at ambient conditions shows that pure calcite (the
stable polymorph of calcium carbonate)
forms at pH - values corresponding to high binding strength in
clusters and that predominantly vaterite (the least
stable polymorph) and traces of calcite
form at pH - values corresponding to low binding strength in
clusters (fig.
Recently it was suggested that the formation of new atmospheric aerosol particles is connected with the existence of thermodynamically
stable 1 - to 2 - nm
clusters,
formed in the atmosphere by some nucleation mechanism.