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]

1-Butyne
Names
IUPAC name
but-1-yne
Other names
But-1-yne
Ethylacetylene
Ethylethyne
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.003.139
EC Number
  • 203-451-3
UNII
UN number 2452
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
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
  1. Lide, David R. (2008). CRC Handbook of Chemistry and Physics, 89th Edition. CRC Press. pp. 3–84. ISBN 978-0-8493-0488-0.
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