Ntawm no yog cov kws tshaj lij kev sib piv ntawm n - hexane nrog lwm cov kuab tshuaj:
n {- hexane vs. Lwm cov kuab tshuaj- kev sib piv
| Ntiag tug | n - hexane | Tshuaj mob pob thuam | Cyclohexane | Acetone | Ethyl Acetate |
|---|---|---|---|---|---|
| Tshuaj Cov Qauv | C₆H₁₄ | C₇H₁₆ | C₆H₁₂ | C₃H₆O | C₄H₈O₂ |
| Boiling taw tes (degree) | 69 | 98 | 81 | 56 | 77 |
| Flash taw tes (degree) | -22 | -4 | -20 | -17 | -4 |
| ODP / GWP | 0/11 | 0/12 | 0/12 | 0/1 | 0/3 |
| Cov kuab fais fab | High (Alipaj) | Tswj kav | Siab (Cyclics) | Siab heev (polars) | High (Esters) |
| Lom zem | Neurotoxic | Tsawg toxic | Tsawg toxic | Qi | Qi |
| Cov Ntawv Qhia Tseem Ceeb | Cov roj tawm, cov nplaum | Pharma, xim av | Polymer ua | Ntxuav, resins | Txheej, inks |
Kev sib tw zoo ntawm n - hexane:
Tus nqi - ua tau hauj lwm zoo: 15-20% pheej yig dua li hephane / cyclohexane rau cov roj extraction
Zoo dua Kev Xaiv: Kev sib cais zoo dua ntawm tsis - recound (piv txwv li, zaub roj)
Seev dua evaporation: nyiam rau cov nplaum kho vs. hephane
Thaum twg los xav txog kev xaiv:
Txog kev nyab xeeb: Heptane (Ntau dua Flash taw tes)
Rau polar cov tebchaw: acetone
Rau cov polymers tshwj xeeb: cyclohexane
Ceeb Toom Ceeb Toom: N - hexane tseem muaj feem xyuam hauv cov roj extraction (90% kev txhawj xeeb ua lag luam vim nws tus nqi tsis sib xws / kev ua tau zoo piv.
Xav tau kev qhia tshwj xeeb lossis nqi? Tiv tauj peb!
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Cim npe nrov: N - hexane folvent hauv cov nkoj vas nthiv hauv cov nkoj nrawm thoob ntiaj teb, cov chaw muag khoom, Hoobkas
