Name | pent-2-yne |
Synonyms | 2-PENTYNE pent-2-yne Valerylene C2H5CequivCCH3 ETHYLMETHYLACETYLENE 1-Ethyl-2-methylacetylene |
CAS | 627-21-4 |
EINECS | 210-989-2 |
InChI | InChI=1/C5H8/c1-3-5-4-2/h3H2,1-2H3 |
Molecular Formula | C5H8 |
Molar Mass | 68.12 |
Density | 0.721g/cm3 |
Melting Point | -109 °C (lit.) |
Boling Point | 56.7°C at 760 mmHg |
Flash Point | −23 °F |
Vapor Presure | 237mmHg at 25°C |
Appearance | Form Liquid, color Clear colorless to slightly yellow |
Storage Condition | Flammables area |
Refractive Index | 1.406 |
MDL | MFCD00009380 |
Hazard Symbols | Xi - Irritant F+ - Highly flammable |
Risk Codes | R11 - Highly Flammable R36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
UN IDs | 3295 3/PG 2 |
WGK Germany | 3 |
FLUKA BRAND F CODES | 10-23 |
HS Code | 29012900 |
Hazard Class | 3 |
Packing Group | II |
Vapor pressure | 393mm Hg ( 37.7 °C) |
refractive index | n20/D 1.404(lit.) |
flash point | −23 °F |
storage conditions | Flammables area |
morphology | Liquid |
color | Clear colorless to slightly yellow |
Specific gravity | 0.711 |
explosion limit value (explosive limit) | 1.2-8.8%(V) |
BRN | 1696938 |