Spectroscopic evidence for organic diacid complexation with dissolved silica in aqueous systems—I. Oxalic acid

Organic Geochemistry
By: , and 

Links

Abstract

Increased solubility of quartz and mobilization in contaminated groundwater due to the complexation with dissolved organic acids has been recently proposed [Bennett and Siegel, Nature326, 684–686 (1987)]. Using laser Raman and Fourier transform infrared spectroscopies, we have examined mixed solutions of oxalic and silicic acids at near neutral pH in the tenth molar concentration ranges in an attempt to directly observe the proposed organo-silicate complexes.

In both laser Raman and infrared spectra, product bands were observed that indicate an oxalate/silicic acid ester is being formed in the reaction. These data support the observation that organic diacids can lead to enhanced solubility of quartz in hydrogeological systems.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Spectroscopic evidence for organic diacid complexation with dissolved silica in aqueous systems—I. Oxalic acid
Series title Organic Geochemistry
DOI 10.1016/0146-6380(89)90032-6
Volume 14
Issue 5
Year Published 1989
Language English
Publisher Elsevier
Contributing office(s) Toxic Substances Hydrology Program
Description 4 p.
First page 525
Last page 528
Google Analytic Metrics Metrics page
Additional metadata about this publication, not found in other parts of the page is in this table