In order to model the transport and fate of aniline and chloroaniline in the subsurface, the geochemical reactions between these contaminants and important metals and minerals surfaces must be quantified. / The thermodynamic stabilities of the aqueous and surface aluminum-aniline and aluminum-2-chloroaniline complexes were investigated at 55$ sp circ$C and 80$ sp circ$C. Solubility and adsorption experiments place quantitative constraints on the thermodynamic properties of these complexes. No evidence was found for stable Al-aniline or Al-2-chloroaniline aqueous complexes. Conversely, the adsorption data provide unequivocal evidence for the presence of two distinct surface Al-aniline and A-chloroaniline complexes according to the following reactions: (1) $Aniline sp circ + { equiv}Al(OH) sp circ leftrightarrow { equiv}(AlOH(Aniline) sp circ$; (2) $Aniline sp circ + { equiv}Al(O) sp- leftrightarrow { equiv}AlO(Aniline) sp-$; (3) $Chloroaniline sp circ + { equiv}Al(OH) sp circ leftrightarrow { equiv}AlOH(Chloroaniline) sp circ$; (4) $Chloroaniline sp circ + { equiv}Al(OH sb2) sp+ leftrightarrow { equiv}AlOH sb2(Chloroaniline) sp+$. / A constant capacitance model is used to quantify the stability constants for reactions (1) - (4), and the results yield equilibrium constant values of 10$ sp{2.09}$, 10$ sp{2.67}$, 10$ sp{2.87}$ and 10$ sp{2.30}$ respectively. These results indicate that mineral surface complexation can significantly affect total aniline and chloroaniline budgets.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.27921 |
| Date | January 1997 |
| Creators | Yane, Lawrence. |
| Contributors | Fein, Jeremy (advisor) |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Master of Science (Department of Earth and Planetary Sciences.) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 001617642, proquestno: MQ37179, Theses scanned by UMI/ProQuest. |
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