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Gas ti o ga julọ ti Epo epo (C4H8) Fluorocarbon Gas
Kini idi ti o ṣiyemeji? Beere wa Bayi!
Pe waAwọn pato
| Mimo(Agbegbe GC%) | 99.83% | 99.0% iṣẹju |
| 1-Butene | 0.03% | iroyin |
| cis-2-Butene | 99.83% | iroyin |
| kabo-2-Butene | 0.14% | iroyin |
| 1,2-Butadiene | iroyin | |
| 1-Butyne | iroyin |
Imọ Alaye
| Ilana kemikali | C4H8 |
| Iwọn Molar | 56,106 g / mol |
| iwuwo | 0.641 g/mlcis, 3.7°C) |
| Ojuami yo | -138.9 °C (-218.0 °F; 134.2 K) (cis) |
ọja apejuwe
Ṣugbọn-2-ene jẹ alkene acyclic pẹlu awọn ọta erogba mẹrin. O jẹ alkene ti o rọrun julọ ti o nfihan cis / trans-isomerism (ti a tun mọ ni (E / Z) -isomerism); eyini ni, o wa bi meji geometric isomers cis-but-2-ene ((Z) -ṣugbọn-2-ene) ati trans-sugbon-2-ene ((E) -ṣugbọn-2-ene).
Awọn isomers meji naa nira pupọ lati yapa nipasẹ distillation nitori isunmọtosi awọn aaye sisun wọn (~ 4 ° C fun cis ati ~ 1 °C fun trans[5]). Sibẹsibẹ, iyapa ko ṣe pataki ni ọpọlọpọ awọn eto ile-iṣẹ, bi awọn isomers mejeeji ṣe huwa bakanna ni pupọ julọ awọn aati ti o fẹ. Apapọ ile-iṣẹ aṣoju ṣugbọn-2-ene jẹ 70% (Z) - ṣugbọn-2-ene (cis-isomer) ati 30% (E) - ṣugbọn-2-ene (trans-isomer). Butane ati but-1-ene jẹ awọn idoti ti o wọpọ, ti o wa ni 1% tabi diẹ sii ni awọn akojọpọ ile-iṣẹ, eyiti o tun ni awọn iwọn kekere ti isobutene, butadiene ati butyne.
apejuwe2