Abstract
The state of existence of mercury - whether mercury exists as a vapor or particulate in a dust-free atmosphere - was studied with aerosol analyzers based on different measurement principles: diffusion tubes, condensation nuclei counter and piezoelectric microbalance mass monitor, by cooling mercury vapor to a given temperature. It was found that mercury exists mostly as a vapor at the supersaturation of several hundreds but that a few percent of mercury is in the particulate state. The formation of particulate mercury takes place at a supersaturation much less than the critical supersaturation predicted by the conventional nucleation theory. 8 figures.
Published Version
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