1-Butyne
- But-1- in
- Ethylacetylene
Colorless gas with a smell acetylenähnlichem
Gaseous
- 0.67 g · cm -3 (liquid phase at the boiling point )
- 2.34 g · l-1 (gas, 15 ° C, 1000 hPa )
-125.73 ° C
8.07 ° C
1581 hPa (20 ° C)
- Practically insoluble in water
- Soluble in ethanol and diethyl ether
Risk
165.2 kJ / mol
Template: Infobox chemical / molecular formula search available
1-butyne is a hydrocarbon selected from the homologous series of alkynes and isomeric with 2 -butyne.
Production and representation
1-butyne can be gained (eg bromoethane ) by reaction of ethyne with a halogen Ethan.
Properties
1-butyne is a highly flammable gas which forms explosive mixtures with air or oxygen over a wide concentration range. Due to its triple bond is 1-butyne very reactive. So it adds willingly halogens. In higher concentrations of 1-butyne acting narcotic.
It has a critical temperature of 190.6 ° C, a critical pressure of 48.6 bar, a critical density of 0.245 kg / l and a triple point temperature of -125.7 ° C.