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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1021/la304744u
|2 doi
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|a eng
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1 |
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|a Bermudez, V M
|e verfasserin
|4 aut
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|a Investigation of the interaction of γ-Al2O3 with aqueous solutions of dimethyl methylphosphonate using infrared multiple internal reflection spectroscopy
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|c 2013
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 29.07.2013
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|a Date Revised 21.11.2013
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a The interaction of dilute solutions of dimethyl methylphosphonate (DMMP) in H(2)O with thin porous layers of γ-Al(2)O(3) has been studied under steady-state conditions using infrared multiple-internal-reflection spectroscopy. Upon the initial introduction of the DMMP solution to a previously H(2)O-saturated surface, DMMP diffuses into the porous layer and displaces weakly hydrogen-bonded H(2)O molecules. This is accompanied by hydrolysis of the γ-Al(2)O(3) to form Al(OH)(3) and/or AlO(OH). The P═O group of DMMP interacts predominantly with H(2)O and gives no clear indication of bonding to the oxide surface itself, from which it is inferred that the displacement of weakly adsorbed H(2)O results from the interaction of acidic Al-OH sites with the methoxy O atoms of DMMP. No hydrolysis of the DMMP, either in solution or in contact with the oxide, was detectable under the present conditions. The results have practical implications in the decontamination of materials following exposure to toxic reagents related to DMMP
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|a Journal Article
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|a Research Support, U.S. Gov't, Non-P.H.S.
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|a Organophosphorus Compounds
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|a Solutions
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|a Water
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|a 059QF0KO0R
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|a dimethyl methylphosphonate
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|a Aluminum Oxide
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1999
|g 29(2013), 5 vom: 05. Feb., Seite 1483-9
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:29
|g year:2013
|g number:5
|g day:05
|g month:02
|g pages:1483-9
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|u http://dx.doi.org/10.1021/la304744u
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