Chemical Properties
| Melting point | -35.99°C |
| Boiling point | 10.85°C |
| Density | 0.7090 |
| refractive index | 1.4189 |
| Water Solubility | 1g/L(25 ºC) |
| Henry's Law Constant | 2.0×10-3 mol/(m3Pa) at 25℃, Irmann (1965) |
| Stability | Stability Highly flammable. Readily forms explosive mixtures with air. May form peroxides in storage. |
| EPA Substance Registry System | 1,3-Butadiyne (460-12-8) |