2-Pentyne
- Product Name2-Pentyne
- CAS627-21-4
- CBNumberCB5218567
- MFC5H8
- MW68.12
- EINECS210-989-2
- MDL NumberMFCD00009380
- MOL File627-21-4.mol
Chemical Properties
| Melting point: | −109 °C (−164 °F; 164 K) |
| Boiling point: | 56 to 57 °C |
| Density | 0.71 g/mL |
| vapor pressure | 393 mm Hg ( 37.7 °C) |
| refractive index | 1.40 |
| Flash point: | -20 °C |
| storage temp. | Flammables area |
| solubility | soluble in Ether,Alcohol,Benzene |
| form | clear liquid |
| color | Colorless to Light orange to Yellow |
| Specific Gravity | 0.711 |
| explosive limit | 1.2-8.8%(V) |
| BRN | 1696938 |
| Henry's Law Constant | 5.6×10-4 mol/(m3Pa) at 25℃, Yaws (2003) |
| InChI | 1S/C5H8/c1-3-5-4-2/h3H2,1-2H3 |
| InChIKey | NKTDTMONXHODTI-UHFFFAOYSA-N |
| SMILES | CCC#CC |
| CAS DataBase Reference | 627-21-4(CAS DataBase Reference) |
Safety
| Symbol(GHS) |
  GHS02,GHS07 |
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| Signal word | Danger | |||||||||
| Hazard statements | H225-H315-H319-H335 | |||||||||
| Precautionary statements | P210-P302+P352-P305+P351+P338 | |||||||||
| target organs | Respiratory system | |||||||||
| PPE | Eyeshields, Faceshields, Gloves | |||||||||
| Hazard Codes | F,Xi | |||||||||
| Risk Statements | 11-36/37/38 | |||||||||
| Safety Statements | 16-26-36/37/39 | |||||||||
| RIDADR | UN 3295 3/PG 2 | |||||||||
| WGK Germany | 3 | |||||||||
| F | 10-23 | |||||||||
| HazardClass | 3 | |||||||||
| PackingGroup | II | |||||||||
| HS Code | 29012900 | |||||||||
| Storage Class | 3 - Flammable liquids | |||||||||
| Hazard Classifications |
Eye Irrit. 2 Flam. Liq. 2 Skin Irrit. 2 STOT SE 3 |
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| NFPA 704: |
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