Free-Radical Concentrations and Other Properties of Pile-Irradiated Coals
Abstract
Five coals reacted quite differently when they were exposed to pile-irradiation. Little or no change was found in free-radical content for the three coals of lowest carbon content, whereas the two coals of highest carbon content were found to have a considerable increase in free-radical content. The infrared spectra and the apparent hardness of the irradiated coals of higher carbon content indicate that polymerization occurred. Radiation of these coals in chemical reagents may promote reactivity.
References
Austen, D. E. G., paper presented at the Conference on Science in the Use of Coal, spring meeting of the Institute of Fuel (1958).
BREGER, I.A., B GEOL SOC AM 2 67: 1675 (1956).
Breger, I. A., preprint, Proc. Natl. Colloid Symposium, Madison, Wis., June (1956).
Breger, I. A., Origin and Constitution of Coal: 3rd Conference, 1956, in press.
BROWN, J. K., JOURNAL OF THE CHEMICAL SOCIETY: 744 (1955).
Ergun, S., paper presented at the 3rd International Conference on Coal Science, Valkenburg, Netherlands, April (1959).
FRIEDEL, R.A., INFRARED ANALYSIS OF BITUMINOUS COALS AND OTHER CARBONACEOUS MATERIALS, ANALYTICAL CHEMISTRY 28: 22 (1956).
Given, P. H., paper presented at the Conference on Science in the Use of Coal, spring meeting of the Institute of Fuel (1958).
Ingram, D. J. E., Nature 174:797 (1954).
UEBERSFELD, J, PARAMAGNETIC RESONANCE, A NEW PROPERTY OF COAL-LIKE MATERIALS, NATURE 174: 614 (1954).
Wender, I., preprints, Proc. Gas and Fuel Div., Am. Chem. Soc. (1959).
Get full access to this article
View all available purchase options and get full access to this article.
Already a Subscriber?Sign In
Information & Authors
Information
Published In
Science
Volume 130 | Issue 3391
25 December 1959
25 December 1959
Copyright
© 1959.
Submission history
Published in print: 25 December 1959
Authors
Metrics & Citations
Metrics
Article Usage
Altmetrics
Citations
Export citation
Select the format you want to export the citation of this publication.
View Options
Get Access
Log in to view the full text
AAAS login provides access to Science for AAAS Members, and access to other journals in the Science family to users who have purchased individual subscriptions.
- Become a AAAS Member
- Activate your AAAS ID
- Purchase Access to Other Journals in the Science Family
- Account Help
Log in via OpenAthens.
Log in via Shibboleth.
More options
Purchase digital access to this article
Download and print this article for your personal scholarly, research, and educational use.
Buy a single issue of Science for just $15 USD.
View options
PDF format
Download this article as a PDF file
Download PDF