On Ethane prepared from Ethyl Iodide, and on the Properties of some Mixtures of Ethane and Butane
In a paper on mixtures of ethane and nitrous oxide, read before the Physical Society of London in May 1895, I communicated a set of observations with regard to the condensation and the critical state of ethane. This substance was prepared by electrolysing sodium acetate: it was purified with fuming...
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Cambridge University Press (CUP)
1897
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crcambridgeupr:10.1017/s0370164600050525 2024-03-03T08:43:34+00:00 On Ethane prepared from Ethyl Iodide, and on the Properties of some Mixtures of Ethane and Butane Kuenen, J. P. 1897 http://dx.doi.org/10.1017/s0370164600050525 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0370164600050525 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Proceedings of the Royal Society of Edinburgh volume 21, page 433-442 ISSN 0370-1646 General Engineering journal-article 1897 crcambridgeupr https://doi.org/10.1017/s0370164600050525 2024-02-08T08:39:21Z In a paper on mixtures of ethane and nitrous oxide, read before the Physical Society of London in May 1895, I communicated a set of observations with regard to the condensation and the critical state of ethane. This substance was prepared by electrolysing sodium acetate: it was purified with fuming sulphuric acid, caustic soda, and phosphorus pentoxide, and condensed in a small copper cylinder, where it was subsequently boiled at low temperature in order to expel all permanent gas. The ethane with which the glass compression-tubes were filled was drawn from the liquid contained in the copper cylinder. Its condensation-pressures and critical constants are contained in the following table, which is taken from the paper mentioned (comp. fig. 3):— The values of p and of the critical constants in Table I. are not absolutely correct. The observations showed the substance to contain some impurity, the condensation-pressures not being quite constant, but showing a slight increase, as is always the case for mixtures. The difference of the pressure at the beginning and at the end of the condensation amounted to 0·43 atmospheres at 15° C. It is, however, unlikely that this impurity in the ethane can have affected the values for p by more than a few tenths of an atmosphere. Nor will the value for the critical temperature differ by more than 0·1 or 0·27° C. from the true value, considering that Andrews' carbonic acid showed changes in vapour-pressure of over two atmospheres under the same circumstances, and that his value for the critical temperature, 30·9° C., is only about 0·4° C. too low. Article in Journal/Newspaper Carbonic acid Cambridge University Press Proceedings of the Royal Society of Edinburgh 21 433 442 |
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Cambridge University Press |
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language |
English |
topic |
General Engineering |
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General Engineering Kuenen, J. P. On Ethane prepared from Ethyl Iodide, and on the Properties of some Mixtures of Ethane and Butane |
topic_facet |
General Engineering |
description |
In a paper on mixtures of ethane and nitrous oxide, read before the Physical Society of London in May 1895, I communicated a set of observations with regard to the condensation and the critical state of ethane. This substance was prepared by electrolysing sodium acetate: it was purified with fuming sulphuric acid, caustic soda, and phosphorus pentoxide, and condensed in a small copper cylinder, where it was subsequently boiled at low temperature in order to expel all permanent gas. The ethane with which the glass compression-tubes were filled was drawn from the liquid contained in the copper cylinder. Its condensation-pressures and critical constants are contained in the following table, which is taken from the paper mentioned (comp. fig. 3):— The values of p and of the critical constants in Table I. are not absolutely correct. The observations showed the substance to contain some impurity, the condensation-pressures not being quite constant, but showing a slight increase, as is always the case for mixtures. The difference of the pressure at the beginning and at the end of the condensation amounted to 0·43 atmospheres at 15° C. It is, however, unlikely that this impurity in the ethane can have affected the values for p by more than a few tenths of an atmosphere. Nor will the value for the critical temperature differ by more than 0·1 or 0·27° C. from the true value, considering that Andrews' carbonic acid showed changes in vapour-pressure of over two atmospheres under the same circumstances, and that his value for the critical temperature, 30·9° C., is only about 0·4° C. too low. |
format |
Article in Journal/Newspaper |
author |
Kuenen, J. P. |
author_facet |
Kuenen, J. P. |
author_sort |
Kuenen, J. P. |
title |
On Ethane prepared from Ethyl Iodide, and on the Properties of some Mixtures of Ethane and Butane |
title_short |
On Ethane prepared from Ethyl Iodide, and on the Properties of some Mixtures of Ethane and Butane |
title_full |
On Ethane prepared from Ethyl Iodide, and on the Properties of some Mixtures of Ethane and Butane |
title_fullStr |
On Ethane prepared from Ethyl Iodide, and on the Properties of some Mixtures of Ethane and Butane |
title_full_unstemmed |
On Ethane prepared from Ethyl Iodide, and on the Properties of some Mixtures of Ethane and Butane |
title_sort |
on ethane prepared from ethyl iodide, and on the properties of some mixtures of ethane and butane |
publisher |
Cambridge University Press (CUP) |
publishDate |
1897 |
url |
http://dx.doi.org/10.1017/s0370164600050525 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0370164600050525 |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_source |
Proceedings of the Royal Society of Edinburgh volume 21, page 433-442 ISSN 0370-1646 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0370164600050525 |
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Proceedings of the Royal Society of Edinburgh |
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21 |
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433 |
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442 |
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1792499009934327808 |