1-Butyne
1-Butyne, also known as ethylacetylene, but-1-yne, ethylethyne, and UN 2452, is an extremely flammable and reactive alkyne with chemical formula C4H6 and CAS number 107-00-6 that is used in the synthesis of organic compounds. It occurs as a colorless gas.[1]
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| Names | |
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| IUPAC name
but-1-yne | |
| Other names
But-1-yne Ethylacetylene Ethylethyne | |
| Identifiers | |
3D model (JSmol) |
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| ChEBI | |
| ChemSpider | |
| ECHA InfoCard | 100.003.139 |
| EC Number |
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PubChem CID |
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| UNII | |
| UN number | 2452 |
CompTox Dashboard (EPA) |
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| Properties[1] | |
| C4H6 | |
| Molar mass | 54.091 g/mol |
| Density | 0.6783 g cm−3[1] |
| Melting point | −125.7 °C (−194.3 °F; 147.5 K)[1] |
| Boiling point | 8.08 °C (46.54 °F; 281.23 K)[1] |
| Hazards | |
| GHS pictograms |   |
| GHS Signal word | Danger |
GHS hazard statements |
H220, H280 |
| P210, P377, P381, P403, P403 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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| Infobox references | |
See also
References
- Lide, David R. (2008). CRC Handbook of Chemistry and Physics, 89th Edition. CRC Press. pp. 3–84. ISBN 978-0-8493-0488-0.
External links
| Alkali metal (Group 1) hydrides |  Lithium hydride, LiH ionic metal hydride   Beryllium hydride Left (gas phase): BeH2 covalent metal hydride Right: (BeH2)n (solid phase) polymeric metal hydride   Borane and diborane Left: BH3 (special conditions), covalent metalloid hydride Right: B2H6 (standard conditions), dimeric metalloid hydride  Methane, CH4 covalent nonmetal hydride  Ammonia, NH3 covalent nonmetal hydride  Water, H2O covalent nonmetal hydride  Hydrogen fluoride, HF covalent nonmetal hydride | ||||||||||||||||||||
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| Alkaline (Group 2) earth hydrides |
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| Group 13 hydrides |
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| Group 14 hydrides |
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| Pnictogen (Group 15) hydrides |
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| Hydrogen chalcogenides (Group 16 hydrides) |
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| Hydrogen halides (Group 17 hydrides) | |||||||||||||||||||||
| Transition metal hydrides | |||||||||||||||||||||
| Lanthanide hydrides | |||||||||||||||||||||
| Actinide hydrides | |||||||||||||||||||||
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