0102030405
0102030405
Babban Tsarkakewar Trans-2-butene Gas (C4H8) Gases Fluorocarbon
Me ya sa kuke shakka ? A tambaye mu Yanzu!
Tuntube muƘayyadaddun bayanai
| Tsafta (Yankin GC%) | 99.81% | >99% |
| 1-Butene | rahoto | |
| ci-2-Butene | 0.10% | rahoto |
| trans-2-Butene | 99.81% | >99% |
| 1,2-Bude | rahoto | |
| 1-Butyne | rahoto | |
| Butane | 0.07% | rahoto |
| Sauran | rahoto |
Bayanin Fasaha
| Tsarin sinadaran | C4H8 |
| Molar taro | 56.106 g/mol |
| Yawan yawa | 0.626 g/ml (trans, 0.9 °C) |
| Wurin narkewa | -105.5C (masu girma dabam) |
bayanin samfurin
Amma-2-ene shine acyclic alkene tare da carbon carbon guda hudu. Shi ne mafi sauƙi alkene yana nuna cis / trans-isomerism (wanda aka fi sani da (E / Z) -isomerism); wato, ya wanzu a matsayin isomers na geometric guda biyu cis-but-2-ene ((Z)-but-2-ene) da trans-but-2-ene ((E)-amma-2-ene).
Isomers biyu suna da matukar wahala a rarrabe ta hanyar distillation saboda kusancin wuraren tafasa su (~ 4 ° C na cis da ~ 1 ° C don trans[5]). Duk da haka, rabuwa ba dole ba ne a yawancin saitunan masana'antu, kamar yadda dukkanin isomers ke yin aiki iri ɗaya a yawancin halayen da ake so. Alamar masana'antu amma-2-ene cakuda shine 70% (Z) -amma-2-ene (cis-isomer) da 30% (E) -amma-2-ene (trans-isomer). Butane da but-1-ene sune najasa na yau da kullun, suna samuwa a 1% ko fiye a cikin cakudawar masana'antu, wanda kuma ya ƙunshi ƙananan adadin isobutene, butadiene da butyne.
bayanin 2