0102030405
0102030405
ʻO ke kinoea ʻaila wai hoʻomaʻemaʻe kiʻekiʻe (C4H8) nā kinoea fluorocarbon
No ke aha e kānalua ai ? E nīnau iā mākou i kēia manawa!
Kāhea iā mā˚ouNā kikoʻī
| Maʻemaʻe(GC Area %) | 99.83% | 99.0% min |
| 1-Butene | 0.03% | hōʻike |
| cis-2-Butene | 99.83% | hōʻike |
| trans-2-Butene | 0.14% | hōʻike |
| 1,2-Butadiene | hōʻike | |
| 1-Butyne | hōʻike |
ʻIke ʻenehana
| ʻO ke kimekema | C4H8 |
| Molar mass | 56.106 g/mol |
| ʻO ka mānoanoa | 0.641 g/ml (cis, 3.7 °C) |
| Lae hehee | −138.9 °C (−218.0 °F; 134.2 K) (cis) |
wehewehe huahana
Akā ʻo ka-2-ene he alkene acyclic me nā ʻātoma kalapona ʻehā. ʻO ia ka alkene maʻalahi e hōʻike ana i ka cis/trans-isomerism (ʻike pū ʻia ʻo (E/Z) -isomerism); ʻo ia hoʻi, aia ia ma ke ʻano he ʻelua isomers geometric cis-but-2-ene ((Z) -but-2-ene) a me trans-but-2-ene ((E) -but-2-ene).
Paʻakikī loa ka hoʻokaʻawale ʻana o nā isomer ʻelua ma ka distillation ma muli o ka kokoke o ko lākou mau wahi paila (~ 4 °C no cis a me ~1 °C no trans[5]). Eia naʻe, ʻaʻole pono ka kaʻawale ʻana ma ka hapa nui o nā ʻoihana ʻoihana, no ka mea, ua like ka hana ʻana o nā isomer ʻelua i ka hapa nui o nā hopena i makemake ʻia. He 70% (Z) -but-2-ene (cis-isomer) a me 30% (E)-but-2-ene (trans-isomer) kahi hui hana ma'amau akā-2-ene. ʻO Butane a me but-1-ene nā mea haumia maʻamau, aia ma ka 1% a ʻoi aʻe paha i loko o nā hui ʻoihana, aia nō hoʻi nā mea liʻiliʻi o isobutene, butadiene a me butyne.
wehewehe2