Spectral characterization and kinetics of formation of hypoiodous acid in aqueous solution

Journal Article · Tue Mar 25 23:00:00 EST 1986 · Inorg. Chem.; (United States)

DOI:https://doi.org/10.1021/ic00227a009· OSTI ID:5599378

Palmer, D A; van Eldik, R

The uv-visible absorption spectrum of the transient HOI species was obtained by utilizing the anion-exchange capacity of the mercury carbide polymer (Hg/sub 3/CO(ClO/sub 4/))/sub n/. The spectrum of HOI exhibited an absorption maximum at 278 nm in agreement with a recently reported spectrum obtained by a different method. The kinetics of hydrolysis of iodine to form HOI and I/sup -/ were studied at 20/sup 0/C and an ionic strength of 0.1 M by temperature-jump spectrophotometry. In contrast to the halogens, Cl/sub 2/ and Br/sub 2/, the rate of hydrolysis is controlled by the disproportionation of the conjugate base, I/sub 2/OH/sup -/, with a rate constant of 994 +/- 36 s/sup -1/.

• Research Organization: Oak Ridge National Lab., TN
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5599378
• Journal Information: Inorg. Chem.; (United States), Journal Name: Inorg. Chem.; (United States) Vol. 25:6; ISSN INOCA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ABSORPTION SPECTRA
AQUEOUS SOLUTIONS
CHEMICAL REACTION KINETICS
DATA
DISPERSIONS
EXPERIMENTAL DATA
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
HYPOIODOUS ACID
INFORMATION
INORGANIC ACIDS
IODINE COMPOUNDS
KINETICS
MIXTURES
NUMERICAL DATA
OXYGEN COMPOUNDS
REACTION KINETICS
SOLUTIONS
SPECTRA
SYNTHESIS