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An apparatus for the study of fast precipitation reactions

Published online by Cambridge University Press:  05 July 2018

David Rickard
David Rickard*
Affiliation:
Department of Geology, Cardiff University, Cardiff CF1 3YE, Wales
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Abstract

An apparatus is described for the measurement of the rates of fast precipitation reactions. It consists of a T-tube, where reactants are added to the arms of the T, mixed rapidly at the junction, and the rates of disappearance of reactants or appearance of products are measured along the stem of the T. The geometry of the system results in a steady state being established in the apparatus, enabling detailed analysis of reaction progress. The apparatus has been used to investigate the kinetics and mechanism of iron sulphide precipitation reactions. It has enabled measurements to be made with relatively high precision and good accuracy of the first 130 ms of reaction time.

Keywords

reaction kineticsprecipitationiron sulphide
Type
Geochemistry
Information
Mineralogical Magazine , Volume 53 , Issue 373 , December 1989 , pp. 527 - 530
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1989

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References

Chou, L. and Wollast, R. (1984) Study of the weathering of albite at room temperature and pressure with a fiuidized bed reactor. Geochim Cosmochim. Acta 40, 41-50.Google Scholar
Giggenbach, W. (1971) Optical spectra of highly alkaline sulfide solutions and the second dissociation constant of hydrogen sulfide. Inorg. Chem. 10, 1333-8.CrossRefGoogle Scholar
Morse, J. W., Millero, F. J., Cornwell, J. C., and Rickard D. (1987) The chemistry of the hydrogen sulfide and iron sulfide systems in natural waters. Earth Sci. Rev. 24, 1-42.CrossRefGoogle Scholar
Ostwald, W. Z. (1897) Studien uber die Bildung und Umwaldung fester Korper. 1. Abhandlung: Ubersattigung and Uberkaltung. Zeits. Phys. Chem. 22, 289-330.Google Scholar
Rickard, D. and Sjoberg, E. L. (1983) Mixed kinetic control of calcite dissolution rates. Am. J. Sci. 283, 815-30.CrossRefGoogle Scholar
Schoonen, M. A. A. and Barnes, H. L. (1988) An approximation to the second dissociation constant for H2S. Geochim. Cosmochim. Acta 52, 649-54.CrossRefGoogle Scholar