Published March 2, 1981 | Version v1
Journal article Metadata-only

The kinetic deuterium isotope effect in the thermal dehydration of boric acid

Creators

  • 1. Hiroshima Univ. (Japan). Lab. of Chemistry
  • 2. Hiroshima Univ. (Japan). Dept. of Chemistry

Description

The kinetic deuterium isotope effect in the thermal dehydration process from H3BO3 to HBO2(III) was determined using simultaneous TG and DSC. The rate constant ratio of H3BO3 to D3BO3 obtained by the analysis of isothermal TG and DSC curves was found to be smaller than unity. Both activation energy, E, and frequency factor, A, for the dehydration of H3BO3 proved to be larger than those of D3BO3, using non-isothermal TG and DSC. The origin of the deuterium kinetic isotope effect in the thermal dehydration of boric acid is also briefly discussed. (orig.)

Additional details

Publishing Information

Journal Title
Thermochim. Acta
Journal Volume
44
Journal Issue
1
Series
CODEN: THACA.;Thermochim. Acta.
Journal Page Range
37-42
ISSN
0040-6031

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
14778274
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Progress Report
Descriptors DEI
BORIC ACID; CHEMICAL REACTION KINETICS; DEHYDRATION; DEUTERIUM COMPOUNDS; ENTHALPY; ISOTOPE EFFECTS; ISOTOPE RATIO; PYROLYSIS; TIME DEPENDENCE
Descriptors DEC
BORON COMPOUNDS; CHEMICAL REACTIONS; DECOMPOSITION; HYDROGEN COMPOUNDS; INORGANIC ACIDS; KINETICS; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; REACTION KINETICS; THERMODYNAMIC PROPERTIES