1-octyne
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| General | ||||||||||||||||
| Surname | 1-octyne | |||||||||||||||
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| Molecular formula | C 8 H 14 | |||||||||||||||
| Brief description |
colorless liquid with a characteristic odor |
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| properties | ||||||||||||||||
| Molar mass | 110.20 g mol −1 | |||||||||||||||
| Physical state |
liquid |
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| density |
0.7461 g cm −3 (20 ° C) |
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| Melting point |
−79.3 ° C |
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| boiling point |
126.3 ° C |
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| Vapor pressure |
18 hPa (25 ° C) |
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| solubility |
practically insoluble in water (0.024 g l −1 at 25 ° C) |
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| Refractive index |
1.4159 (20 ° C) |
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| As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C | ||||||||||||||||
1-Octyne is a chemical compound from the alkynes group . It has the basic structure of octane with a CC triple bond at the 1-position.
Extraction and presentation
1-Octyne can be obtained from 1-Octene in a two-step reaction . It is also possible to produce it by reacting lithium acetylide with 1-hexyl bromide .
properties
1-Octyne is a colorless liquid with a characteristic odor that is practically insoluble in water.
use
1-Octyne can be used to make alkylboranes .
safety instructions
The vapors of 1-octyne can form an explosive mixture with air ( flash point 16 ° C, ignition temperature 225 ° C).
Individual evidence
- ↑ a b c d e f g h Entry on 1-octyne in the GESTIS substance database of the IFA , accessed on October 14, 2012(JavaScript required) .
- ↑ a b c d David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Physical Constants of Organic Compounds, pp. 3-406.
- ↑ L. Brandsma, HD Verkruijsse: Synthesis of acetylenes, allenes and cumulenes: methods and techniques . 2003, ISBN 978-0-12-125751-4 ( page 99 in the Google book search).
Web links
- Entry for 1-octyne . In: P. J. Linstrom, W. G. Mallard (Eds.): NIST Chemistry WebBook, NIST Standard Reference Database Number 69 . National Institute of Standards and Technology , Gaithersburg MD .