THE INHIBITION OF CALCITE DISSOLUTION PRECIPITATION - 1,2-DICARBOXYLIC ACIDS

被引：34

作者：

COMPTON, RG

BROWN, CA

机构：

[1] Physical Chemistry Laboratory, Oxford University, Oxford OX1 3QZ, South Parks Road

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1995年 / 170卷 / 02期

关键词：

D O I：

10.1006/jcis.1995.1138

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The dissolution of calcite under conditions of high pH (8.0-9.0) is shown to be strongly inhibited by ca. 10 mM levels of the fully deprotonated forms of succinic acid, phthalic acid, and maleic acid. Channel flow cell measurements are used in each case to deduce the appropriate rate law for dissolution. For the maleate dianion it is demonstrated that the inhibition is likely due to the blocking of dissolution/growth sites at which CaCO3 units are incorporated into or removed from the crystal lattice, whereas for the other two ions it arises from competitive Langmuirian adsorption of the dicarboxylate ions and CO32- on the calcite surface. (C) 1995 Academic Press, Inc.

引用

页码：586 / 590

页数：5

共 12 条

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[7] Weast R.C., Handbook of Chemistry and Physics, (1975)
[8] Compton R.G., Pritchard K.L., Unwin P.R., J. Chem. Soc. Chem. Commun, (1989)
[9] Compton R.G., Unwin P.R., Philos. Trans. R. Soc. London Ser. A, 330, (1990)
[10] Compton R.G., Pritchard K.L., Philos. Trans. R. Soc, London Ser. A, 330, (1990)

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