Deuterium isotope effects in the thermal dehydration of boric acid

The thermal dehydration of boric Acid, H 3BO 3, was studied systematically by means of TG and DSC. Deuterium isotope effects in enthalpy change and dehydration temperature in the thermal dehydration stages of H 3BO 3 were examined by means of DSC. The enthalpy change of D 3BO 3 was found to be appre...

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Bibliographic Details
Published in:Thermochimica acta 1980-12, Vol.42 (1), p.43-49
Main Authors: Tanaka, Haruhiko, Ohshima, Satoshi, Ichiba, Sumio, Negita, Hisao
Format: Article
Language:English
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Summary:The thermal dehydration of boric Acid, H 3BO 3, was studied systematically by means of TG and DSC. Deuterium isotope effects in enthalpy change and dehydration temperature in the thermal dehydration stages of H 3BO 3 were examined by means of DSC. The enthalpy change of D 3BO 3 was found to be appreciably larger than that of H 3BO 3, whereas the thermal stability was little affected by deuteration. The isotopic difference in enthalpy change calculated from vibrational frequency shifts upon deuteration of H 3BO 3 was compared with the experimental value.
ISSN:0040-6031
1872-762X
DOI:10.1016/0040-6031(80)87113-9