Interaction of H2O and CD3OH with sulfuric acid studied by H-1-NMR: broad-line at 4 K and high resolution at 300 K

Authors
Batamack, P Fraissard, J
Citation
P. Batamack et J. Fraissard, Interaction of H2O and CD3OH with sulfuric acid studied by H-1-NMR: broad-line at 4 K and high resolution at 300 K, COLL SURF A, 158(1-2), 1999, pp. 207-210
Citations number
16
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
ISSN journal
09277757 → ACNP
Volume
158
Issue
1-2
Year of publication
1999
Pages
207 - 210
Database
ISI
SICI code
0927-7757(19991110)158:1-2<207:IOHACW>2.0.ZU;2-S
Abstract
The interaction of limited amounts of H2O and CD3OH with H2SO4 has been qua ntitatively studied by broad-line H-1 NMR at 4 K. Simulation of broad-line spectra shows that in aqueous sulfuric acid solutions, H2SO4.xH(2)O with x less than or equal to 4, the first ionisation yields the hydroxonium ion wh ereas HSO4- is such a weak acid that no interaction with water molecules is detected. The results for CD3OH/H2SO4 = 0.52 and 1.02 show that CD3OH is p rotonated and hydronium ion are formed. (C) 1999 Elsevier Science B.V. All rights reserved.