Interaction of Ozone with Sodium Chloride — a Possible Additional Source of Chlorine in the Atmosphere

Леванов, А. В.; Antipenko, E. E.; Zosimov, A. V.; Лунін, В. В.

doi:10.1007/978-94-010-0082-6_24

Cited by 1 publication

(1 citation statement)

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“…As early as 1949, Yeatts and Taube (61) studied the kinetics of production of molecular chlorine upon reaction of ozone with chloride solutions. Aside from studies already mentioned regarding the atmospheric presence of OCl -/HOCl, current interest in atmospheric chlorine have led others to reexamine this reaction in solution (62)(63)(64)(65) or on the surface of NaCl particles (66). In the latter case, recent experiments show that oxygenated products do form even on the dry salt surface (67).…”

Section: Resultsmentioning

confidence: 99%

The Origin of Naturally Occurring Perchlorate: The Role of Atmospheric Processes

Dasgupta

Martinelango

Jackson

et al. 2005

Environ. Sci. Technol.

382

296

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Perchlorate, an iodide uptake inhibitor, is increasingly being detected in new places and new matrices. Perchlorate contamination has been attributed largelyto the manufacture and use of ammonium perchlorate (the oxidizer in solid fuel rockets) and/or the earlier use of Chilean nitrate as fertilizer (approximately 0.1% perchlorate). However, there are regions such as the southern high plains (Texas Panhandle) where there is no clear historical or current evidence of the extensive presence of rocket fuel or Chilean fertilizer sources. The occurrence of easily measurable concentrations of perchlorate in such places is difficult to understand. In the southern high plains groundwater, perchlorate is better correlated with iodate, known to be of atmospheric origin, compared to any other species. We show that perchlorate is readily formed by a variety of simulated atmospheric processes. For example, it is formed from chloride aerosol by electrical discharge and by exposing aqueous chloride to high concentrations of ozone. We report that perchlorate is present in many rain and snow samples. This strongly suggests that some perchlorate is formed in the atmosphere and a natural perchlorate background of atmospheric origin should exist.

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Section: Resultsmentioning

confidence: 99%