| 1. |
THE KINETICS OF THE THERMAL DECOMPOSITIONS OF THE LOWER PARAFFINS: V. THE NITRIC OXIDE INHIBITED DECOMPOSITION OFn-BUTANE |
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Canadian Journal of Research,
Volume 18b,
Issue 1,
1940,
Page 1-11
E. W. R. Steacie,
H. O. Folkins,
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摘要:
A detailed investigation of the inhibition by nitric oxide of the thermal decomposition ofn-butane has been carried out over the temperature range 500° to 550 °C.In all cases it was found that inhibition decreased with increasing butane concentration. This suggests that radical recombination occurs in the normal decomposition by ternary collisions with butane molecules acting as third bodies.The activation energies of the normal and inhibited reactions have been determined. For high pressures the two values are in good agreement, viz., 58,200 and 57,200 cal. per mole respectively. The products of the inhibited reaction were also found to be the same as those of the normal reaction.It is concluded that free radical processes predominate, involving comparatively short chains.
ISSN:1923-4287
DOI:10.1139/cjr40b-001
出版商:NRC Research Press
年代:1940
数据来源: NRC
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| 2. |
THE FRACTIONATION OF TURNER VALLEY CRUDE OILS USING STEDMAN COLUMNS |
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Canadian Journal of Research,
Volume 18b,
Issue 1,
1940,
Page 12-29
R. M. Donald,
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摘要:
A sample of Turner Valley crude oil was distilled using a fractionating column 5 ft. high, and it is shown that a number of the compounds present may be isolated in high concentration.At temperatures much above 100 °C. the separations are naturally not as complete, but, judging by the absorption spectra of the higher boiling fractions, each compound is still concentrated in a very narrow boiling range.A very large number of the possible aliphatic and naphthenic compounds are shown to be present, and it is also shown that the aromatic content of the oil is extremely complex.
ISSN:1923-4287
DOI:10.1139/cjr40b-002
出版商:NRC Research Press
年代:1940
数据来源: NRC
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| 3. |
FORMIC ACID AS A SOLVENT FOR OZONIZATION INVESTIGATIONS |
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Canadian Journal of Research,
Volume 18b,
Issue 1,
1940,
Page 30-34
Rodger M. Dorland,
Harold Hibbert,
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摘要:
The use of formic acid as a solvent in ozonization investigations has been developed and its suitability demonstrated by experiments on organic compounds of known structure. This solvent shows a remarkable tendency to protect the aldehyde from oxidation to the carboxyl group. The stability of the aromatic nucleus to ozone is apparently somewhat greater in this solvent than in ethyl acetate.
ISSN:1923-4287
DOI:10.1139/cjr40b-003
出版商:NRC Research Press
年代:1940
数据来源: NRC
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