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The effect of C02 on the speciation of bromine in low-temperature geological solutions: an XANES study

Evans, Katy; Mavrogenes, John; Newville, M


CO2-rich solutions are common in geological environments. An XANES (X-ray absorption near-edge structure) study of Br in CO2-bearing synthetic fluid inclusions has revealed that Br exhibits a strong pre-edge feature at temperatures from 298 to 423 K. Br in CO2-free solutions does not show such a feature. The feature becomes smaller and disappears as temperature increases, but reappears when temperature is reduced. The size of the feature increases with increasing X(CO2) in the fluid inclusion,...[Show more]

CollectionsANU Research Publications
Date published: 2007
Type: Journal article
Source: Journal of Synchrotron Radiation
DOI: 10.1107/S0909049507001112


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