Characterization of calcareous deposits in artificial sea water by impedances techniques : 2-deposit of Mg(OH)2 without CaCO3

Mg2+ and the corresponding Mg(OH)2 play roles in the transformation of calcareous deposits in sea water. In this paper, only Mg(OH)2 deposition is considered. The composition of other components involved (except Ca2+ ions) also follows ASTM standards. A model of Mg(OH)2 film formation is presented b...

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Bibliographic Details
Published in:Electrochimica acta 2000-02, Vol.45 (11), p.1837-1845
Main Authors: DESLOUIS, C, FESTY, D, GIL, O, MAILLOT, V, TOUZAIN, S, TRIBOLLET, B
Format: Article
Language:English
Subjects:
Chemical Sciences
Chemistry
Electrochemistry
Exact sciences and technology
General and physical chemistry
Kinetics and mechanism of reactions
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Summary:Mg2+ and the corresponding Mg(OH)2 play roles in the transformation of calcareous deposits in sea water. In this paper, only Mg(OH)2 deposition is considered. The composition of other components involved (except Ca2+ ions) also follows ASTM standards. A model of Mg(OH)2 film formation is presented by considering this film as a porous layer. The basic technique to investigate the Mg(OH)2 film formation has been chronoamperometry used in conjunction with ac impedance and EHD impedance techniques to complement the information about the morphology of the magnesium hydroxide deposit.
ISSN:0013-4686
1873-3859
DOI:10.1016/S0013-4686(99)00403-X