But-2-yne

Modify Date: 2024-01-02 18:26:36

But-2-yne Structure
But-2-yne structure
Common Name But-2-yne
CAS Number 503-17-3 Molecular Weight 54.090
Density 0.7±0.1 g/cm3 Boiling Point 25.6±3.0 °C at 760 mmHg
Molecular Formula C4H6 Melting Point -32 °C
MSDS N/A Flash Point -48.5±11.2 °C

 Names

Name but-2-yne
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.7±0.1 g/cm3
Boiling Point 25.6±3.0 °C at 760 mmHg
Melting Point -32 °C
Molecular Formula C4H6
Molecular Weight 54.090
Flash Point -48.5±11.2 °C
Exact Mass 54.046951
LogP 1.46
Vapour Pressure 745.1±0.0 mmHg at 25°C
Index of Refraction 1.393
Storage condition 2-8°C

 Safety Information

Hazard Codes F+,Xi
Risk Phrases R12;R36/37
Safety Phrases S16-S26-S36
RIDADR UN 1144 3/PG 1
WGK Germany 3
RTECS GQ7210000
Packaging Group I
Hazard Class 3

 Synthetic Route

 Synonyms

2-Butyne
Dimethyl acetylene
1,2-dimethylvinylene
Dimethylacetylene
UN1144
MFCD00009275
EINECS 207-962-2
Crotonylene
1-methyl-1-propynyl
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