Introduction：Basic information about CAS 624-64-6|2-butene, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
| Common Name | 2-butene |
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| CAS Number | 624-64-6 | Molecular Weight | 56.10630 |
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| Density | 2 (vs air) | Boiling Point | 1ºC(lit.) |
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| Molecular Formula | C4H8 | Melting Point | -140ºC(lit.) |
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| MSDS | / | Flash Point | <-30 °F |
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Names
| Name | trans-but-2-ene |
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| Synonym | More Synonyms |
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Chemical & Physical Properties
| Density | 2 (vs air) |
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| Boiling Point | 1ºC(lit.) |
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| Melting Point | -140ºC(lit.) |
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| Molecular Formula | C4H8 |
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| Molecular Weight | 56.10630 |
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| Flash Point | <-30 °F |
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| Exact Mass | 56.06260 |
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| LogP | 1.58240 |
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| Vapour density | 2 (vs air) |
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| Vapour Pressure | 2575 mm Hg ( 37.7 °C) |
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| Stability | Stable. Incompatible with strong oxidizing agents, peroxides, peroxyacids, aluminium tetrahydroborate. Extremely flammable. |
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Safety Information
| Hazard Codes | F |
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| Risk Phrases | R12 |
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| Safety Phrases | S16-S38 |
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| RIDADR | UN 1012 2.1 |
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| WGK Germany | 3 |
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| RTECS | EM2932000 |
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| Hazard Class | 2.1 |
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| HS Code | 2901232000 |
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Customs
| HS Code | 2901232000 |
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| Summary | 2901232000 (e)-but-2-ene。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tarrif:2.0%。general tariff:20.0% |
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Synonyms
| MFCD00064458 |
| trans-2-butene |
| EINECS 203-452-9 |
| 2-BUTENE |
