Cov khoom lag luam
Cov ntaub ntawv organic yog dab tsi 18- crown -6 yeej}?
18- crown -6}} hexaoxiccaladecane (tseem hu ua {} {{} ether). Nws muaj tus lej ntawm 17455-13-9, molecular cov mis c₁₂h₂₄o₆, thiab molecular hnyav 264.32. Nyob rau hauv chav tsev kub, qhov compound zoo li lub ntsej muag dawb crystalline muaj ntau yam ntawm 42-45 degree thiab ib qho npau npau li ntawm 116 degree (26.6 PA). Nws yog soluble hauv dej thiab ntau yam kev daws teeb meem organic, nrog qhov ntom ntawm txog 1.175 g / cm³.
Raws li ib tug neeg raug cov ntoo ether, catalys {{k},}, {}, {1} matype tsim hauv kev teeb tsa. Qhov no txawv txawv kev saib xyuas xaus rau nws nrog lub peev xwm los xaiv cov hlau complex ions.
Cov ntaub ntawv yooj yim
Organic tshuaj ntaub ntawv 18- crown -6 Cas {2}}
| Khoom npe | {{0 {}} crown -6 |
| Cas | 17455-13-9 |
| Mf | C12H24O6 |
| Mw | 264.32 |
| Einecs | 241-473-5 |
| Melting point | {{0 {}} degree (lit.) |
| Kub taw tes | 116 Degree 0, 2 hli |
| ceev | 1,175 g / cm3 |
| Refronction Index | 1.4580 (kwv yees) |
| Fp | >230 depree f |
| Cia temp. | Khw ntawm 0-5 degree |
Kev siv
Theem hloov catalysis: tshuaj raw rawyny {} {}}}}}} profecicial caturalthesis, pab txhawb kev tawm tsam heterogeneous.
Kev sib cais hlau: nws yog siv rau kev rho tawm cov hlau uas muaj nqis thiab tsawg-lub ntiaj teb ntsiab, raws li rau ion ntxiv thiab txhaj tshuaj.
Tshuaj thiab Biochemistry: Qhov no compound ua ua ib nrab hauv cov tshuaj sthtisesis thiab tab tom siv hauv biomolecular kev tshawb fawb.
Cov ntaub ntawv tshawb fawb: Hauv kev lag luam hluav taws xob, nws ua haujlwm ua cov khoom siv ion-ua haujlwm thiab ua rau kev tsim cov kua siv lead ua cov khoom siv.
Cov Ntaub Ntawv Kev Nyab Xeeb
Cov khoom siv phom sij tsis txaus ntseeg rau XI (kev phom sij), qib kev nyuaj siab {0}}}}}}
Nws yuav tsum tau muab khaws cia rau hauv qhov chaw kaw, txias thiab qhuav, deb ntawm hluav taws thiab tsis sib thooj tshuaj yeeb tshuaj. Hnav cov khoom tiv thaiv tiv thaiv thaum ua haujlwm kom tsis txhob muaj kev sib cuag lossis nqus tau.
Tuam txhab tau
Gneebioyog kev tsim tawm tshwj xeeb hauv kev tshawb fawb, kev loj hlob, ntau lawm thiab muag ntawm lub xeev Henan, npog thaj tsam ntawm 3,600 square metres. Peb muaj tus kws tshaj lij, zoo-nruab nrog thiab cov pab pawg R & D muaj ntau dua 10 xyoo ntawm R & D kev paub. Peb lireagentCov khoom tau dav exported rau ntau lub tebchaws suav nrog Tebchaws Asmeskas, Tebchaws Russia, Tebchaws Asmeskas, Tebchaws Asmeskas, thiab peb muab cov kev pabcuam sai sai rau peb cov neeg siv khoom. Peb vam tias yuav tsim kev sib koom tes ntev thiab muaj kev sib koom tes hauv lub neej yav tom ntej thiab muab cov khoom lag luam zoo tshaj plaws rau peb cov neeg siv khoom.
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Cim npe nrov: 18- crown -6}? {}} Cov khoom lag luam, cov chaw tsim khoom, chaw tsim khoom
