Ion-molecular composition of the methanesulfonic acid-water system from IR spectroscopic data
A study of the equilibria in acid-water systems as a function of the ratio of the components is of interest from the point of view of ascertaining the mechanism of the catalytic activity of aqueous solutions of strong acids. Methanesulfonic acid is classified as a strong acid, which makes it a convenient subject for a study of the state of the equilibria of various systems. The equilibrium compositions and structures of the ionic and molecular complexes in the CH/sub 3/SO/sub 3/H-H/sub 2/O system over the entire range of the concentrations of the components were determined by IR spectroscopy; the highest concentration of the anionic forms is reached at a water:acid ratio of 2:1. Primarily H/sub 5/O/sup 2 +/ ions are formed at high acid concentrations, and the presence of CH/sub 3/SO/sub 3/H. OSO/sub 2/CH/sub 3/ complexes was also revealed.
- Research Organization:
- Institute of Chemical Physics, Academy of Sciences of the USSR, Moscow
- OSTI ID:
- 7252086
- Journal Information:
- Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States), Vol. 34:7, PT.1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
AQUEOUS SOLUTIONS
CATALYTIC EFFECTS
INFRARED SPECTRA
SULFONIC ACID ESTERS
CHEMICAL COMPOSITION
COMPLEXOMETRY
COORDINATION VALENCES
DISSOCIATION
EQUILIBRIUM
OPACITY
PH VALUE
QUANTITY RATIO
SOLVATION
STRUCTURAL CHEMICAL ANALYSIS
DISPERSIONS
ESTERS
MIXTURES
OPTICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PHYSICAL PROPERTIES
SOLUTIONS
SPECTRA
VALENCE
400201* - Chemical & Physicochemical Properties