III. On a new series of hydrocarbons derived from coal-tar
The light oils obtained by the destructive distillation of Cannel-coal at a low temperature, contain, besides the hydrocarbons of the marsh-gas and benzol series, other substances, which are attacked by concentrated sulphuric acid. If the oil, which has been repeatedly shaken with this acid, be subj...
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1867
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Online Access: | http://dx.doi.org/10.1098/rspl.1866.0032 https://royalsocietypublishing.org/doi/pdf/10.1098/rspl.1866.0032 |
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crroyalsociety:10.1098/rspl.1866.0032 2024-06-02T08:05:11+00:00 III. On a new series of hydrocarbons derived from coal-tar 1867 http://dx.doi.org/10.1098/rspl.1866.0032 https://royalsocietypublishing.org/doi/pdf/10.1098/rspl.1866.0032 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Proceedings of the Royal Society of London volume 15, page 132-136 ISSN 0370-1662 2053-9126 journal-article 1867 crroyalsociety https://doi.org/10.1098/rspl.1866.0032 2024-05-07T14:16:01Z The light oils obtained by the destructive distillation of Cannel-coal at a low temperature, contain, besides the hydrocarbons of the marsh-gas and benzol series, other substances, which are attacked by concentrated sulphuric acid. If the oil, which has been repeatedly shaken with this acid, be subjected to distillation, the hydrocarbons which are unacted upon volatilize first, and a black tarry liquid, equal in bulk to about half the crude oil, remains behind. On heating this residue more strongly, a brown oil, having an unpleasant smell, comes over at about 200°C. the temperature rises gradually up to 300°C., and at last a black pitchy mass is left in the retort. Even after repeated rectifications the oil always leaves a solid black residue behind, and it was only by continued fractional distillations over solid caustic potash and metallic sodium, that I succeeded in isolating substances possessing nearly a constant boiling-point and volatilizing almost completely. The compounds which I thus obtained from Cannel-coal oil, boiling below 120°C., are hydrocarbons of the general formula (C n H 2 n -2 ) 2 , as the following analyses and determinations of the vapour-densities show:— (1) C 12 H 20 boiling-point 210°C. ( a ) 0·262 substance gave 0·840 carbonic acid and 0·290 water. ( b ) 0·1978 substance gave 0·635 carbonic acid and 0·2195 water. Article in Journal/Newspaper Carbonic acid The Royal Society Proceedings of the Royal Society of London 15 132 136 |
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The Royal Society |
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English |
description |
The light oils obtained by the destructive distillation of Cannel-coal at a low temperature, contain, besides the hydrocarbons of the marsh-gas and benzol series, other substances, which are attacked by concentrated sulphuric acid. If the oil, which has been repeatedly shaken with this acid, be subjected to distillation, the hydrocarbons which are unacted upon volatilize first, and a black tarry liquid, equal in bulk to about half the crude oil, remains behind. On heating this residue more strongly, a brown oil, having an unpleasant smell, comes over at about 200°C. the temperature rises gradually up to 300°C., and at last a black pitchy mass is left in the retort. Even after repeated rectifications the oil always leaves a solid black residue behind, and it was only by continued fractional distillations over solid caustic potash and metallic sodium, that I succeeded in isolating substances possessing nearly a constant boiling-point and volatilizing almost completely. The compounds which I thus obtained from Cannel-coal oil, boiling below 120°C., are hydrocarbons of the general formula (C n H 2 n -2 ) 2 , as the following analyses and determinations of the vapour-densities show:— (1) C 12 H 20 boiling-point 210°C. ( a ) 0·262 substance gave 0·840 carbonic acid and 0·290 water. ( b ) 0·1978 substance gave 0·635 carbonic acid and 0·2195 water. |
format |
Article in Journal/Newspaper |
title |
III. On a new series of hydrocarbons derived from coal-tar |
spellingShingle |
III. On a new series of hydrocarbons derived from coal-tar |
title_short |
III. On a new series of hydrocarbons derived from coal-tar |
title_full |
III. On a new series of hydrocarbons derived from coal-tar |
title_fullStr |
III. On a new series of hydrocarbons derived from coal-tar |
title_full_unstemmed |
III. On a new series of hydrocarbons derived from coal-tar |
title_sort |
iii. on a new series of hydrocarbons derived from coal-tar |
publisher |
The Royal Society |
publishDate |
1867 |
url |
http://dx.doi.org/10.1098/rspl.1866.0032 https://royalsocietypublishing.org/doi/pdf/10.1098/rspl.1866.0032 |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_source |
Proceedings of the Royal Society of London volume 15, page 132-136 ISSN 0370-1662 2053-9126 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rspl.1866.0032 |
container_title |
Proceedings of the Royal Society of London |
container_volume |
15 |
container_start_page |
132 |
op_container_end_page |
136 |
_version_ |
1800749955958177792 |