The Use of the Exchange Between Carbon Dioxide, Carbonic Acid, Bicarbonate Ion, and Water for Isotopic Concentration
A study was made of the exchange of oxygen and carbon in the reactions: CO2 (dissolved)+H2O⇄H2CO3,CO2 (dissolved)+OH−⇄HCO3−.It was found that the rate of the first could be increased four or five times and the rate of the second up to 2000 times by heterogeneous catalysis. Investigation of the use o...
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Online Access: | http://dx.doi.org/10.1063/1.1723865 https://pubs.aip.org/aip/jcp/article-pdf/11/9/403/18793187/403_1_online.pdf |
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craippubl:10.1063/1.1723865 2024-05-19T07:38:53+00:00 The Use of the Exchange Between Carbon Dioxide, Carbonic Acid, Bicarbonate Ion, and Water for Isotopic Concentration Reid, Allen F. Urey, Harold C. 1943 http://dx.doi.org/10.1063/1.1723865 https://pubs.aip.org/aip/jcp/article-pdf/11/9/403/18793187/403_1_online.pdf en eng AIP Publishing The Journal of Chemical Physics volume 11, issue 9, page 403-412 ISSN 0021-9606 1089-7690 journal-article 1943 craippubl https://doi.org/10.1063/1.1723865 2024-05-02T06:42:58Z A study was made of the exchange of oxygen and carbon in the reactions: CO2 (dissolved)+H2O⇄H2CO3,CO2 (dissolved)+OH−⇄HCO3−.It was found that the rate of the first could be increased four or five times and the rate of the second up to 2000 times by heterogeneous catalysis. Investigation of the use of these catalyzed reactions for separation of the oxygen and carbon isotopes was carried out both by the use of a static bomb technique and by the operation of fractionating columns. The effects of different operating conditions were indicated, and the necessity for turbulent flow in the gas phase was established. Pressures from one through fifty atmospheres were tried, as the increase of CO2 pressure increases the concentration of CO2 (dissolved) and thus speeds up the exchange. A comparison of the above method with the HCN – CN− method of separation of carbon isotopes shows the cyanide exchange to be somewhat faster and to require less time to come to production, somewhat doubtful advantages when they must be coupled with the polymerization and poisonous properties of the hydrogen cyanide, as well as with its greater cost. Article in Journal/Newspaper Carbonic acid AIP Publishing The Journal of Chemical Physics 11 9 403 412 |
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Open Polar |
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AIP Publishing |
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craippubl |
language |
English |
description |
A study was made of the exchange of oxygen and carbon in the reactions: CO2 (dissolved)+H2O⇄H2CO3,CO2 (dissolved)+OH−⇄HCO3−.It was found that the rate of the first could be increased four or five times and the rate of the second up to 2000 times by heterogeneous catalysis. Investigation of the use of these catalyzed reactions for separation of the oxygen and carbon isotopes was carried out both by the use of a static bomb technique and by the operation of fractionating columns. The effects of different operating conditions were indicated, and the necessity for turbulent flow in the gas phase was established. Pressures from one through fifty atmospheres were tried, as the increase of CO2 pressure increases the concentration of CO2 (dissolved) and thus speeds up the exchange. A comparison of the above method with the HCN – CN− method of separation of carbon isotopes shows the cyanide exchange to be somewhat faster and to require less time to come to production, somewhat doubtful advantages when they must be coupled with the polymerization and poisonous properties of the hydrogen cyanide, as well as with its greater cost. |
format |
Article in Journal/Newspaper |
author |
Reid, Allen F. Urey, Harold C. |
spellingShingle |
Reid, Allen F. Urey, Harold C. The Use of the Exchange Between Carbon Dioxide, Carbonic Acid, Bicarbonate Ion, and Water for Isotopic Concentration |
author_facet |
Reid, Allen F. Urey, Harold C. |
author_sort |
Reid, Allen F. |
title |
The Use of the Exchange Between Carbon Dioxide, Carbonic Acid, Bicarbonate Ion, and Water for Isotopic Concentration |
title_short |
The Use of the Exchange Between Carbon Dioxide, Carbonic Acid, Bicarbonate Ion, and Water for Isotopic Concentration |
title_full |
The Use of the Exchange Between Carbon Dioxide, Carbonic Acid, Bicarbonate Ion, and Water for Isotopic Concentration |
title_fullStr |
The Use of the Exchange Between Carbon Dioxide, Carbonic Acid, Bicarbonate Ion, and Water for Isotopic Concentration |
title_full_unstemmed |
The Use of the Exchange Between Carbon Dioxide, Carbonic Acid, Bicarbonate Ion, and Water for Isotopic Concentration |
title_sort |
use of the exchange between carbon dioxide, carbonic acid, bicarbonate ion, and water for isotopic concentration |
publisher |
AIP Publishing |
publishDate |
1943 |
url |
http://dx.doi.org/10.1063/1.1723865 https://pubs.aip.org/aip/jcp/article-pdf/11/9/403/18793187/403_1_online.pdf |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_source |
The Journal of Chemical Physics volume 11, issue 9, page 403-412 ISSN 0021-9606 1089-7690 |
op_doi |
https://doi.org/10.1063/1.1723865 |
container_title |
The Journal of Chemical Physics |
container_volume |
11 |
container_issue |
9 |
container_start_page |
403 |
op_container_end_page |
412 |
_version_ |
1799478380710592512 |