Dab tsi yog o -} xyooj?
CAS 95 {- 47 {- 6 o-xyho-xyho)yog ib qho isomer ntawm dimethylenzene nyob rau hauv uas ob mehlyl pawg yog txuas rau txoj haujlwm hloov chaw. Yog tias muaj ob qho chaw hloov mus rau ob qho kev sib txuas ntawm cov atoms ntawm Benzene, peb hu qhov kev teeb tsa no "Ortho" kev teeb tsa. Yog li ntawd, lub npe o -}}} énene keeb kwm los ntawm lub npe "{3}}} xyooj". Nov yog tsab cai lij choj isomer ntawm para thiab meta kev teeb tsa ntawm dimethylenzene. O {{6 {}}}}}}} tshwm sim ua kua ntawm chav tsev kub. Nws yog cov kua tsis muaj kob uas yog cov roj pleev ib nyuag thiab muaj hluav taws kub heev.
Dab tsi yog P -} xyooj?
CAS 106 {- 42-3 p-lyleneyog ib qho isomer ntawm dimethylenzene, nrog ob methyl pawg txuas ntxiv rau kev hloov chaw ntawm cov chaw hloov chaw. Yog hais tias ob qho chaw hloov tau txuas rau ob qho rov qab cov atombon atoms ntawm benzene, qhov no yog hu ua 'para' configuration. Yog li no, lub npe p-}}} éno} - xyooj. Nws tseem yog qhov kev cai lij choj isomer ntawm Ortho thiab Meta kev teeb tsa ntawm Dimethyllebenzene. P -}} âure yog xim tsis muaj kob, cov kua roj heev ntawm chav sov.
Dab tsi yog qhov sib txawv ntawm o {{{0} â}}} - â xylam?
| Yam zoo | O - ey xyo -} ey xylene) | P - ey xy {-} ey xylene) |
|---|---|---|
| Cov Qauv Tshuaj | Ob Metyl pawg ntawm cov pa yeeb nyob ib sab (1,2-txoj hauj lwm) | Ob Metyl pawg ntawm cov rov qab carbon atoms (1,4-txoj hauj lwm) |
| Kev siv thawj | Kev tsim cov phthal anhydride | Kev tsim khoom ntawm Terephthalic acid (PTA) |
| Qhov tseem ceeb derivative | Cov Tshuab Zuag (rau PVC) & Cov Nyiaj Txiag Polyester Polyester | TSIAJ yas (fwj, ntim) & polyester fibers |
| Kub taw tes | 144 Qib | 138 Qib |
Txog Peb
Gneebioyog ib lub tuam txhab siv tshuaj lom neeg muaj kev tshawb fawb txog kev tshawb fawb, ntau lawm, thiab kev muag khoom. Gneebio adlts muaj diversified, cov cuab tam- lub teeb kev loj hlob qauv, lag luam} tsim cov khoom lag luam, thiab kev tsim khoom lag luam. Tau ntau xyoo, lub tuam txhab tau ua tiav txoj hauv kev ywj pheej thiab kev sib koom tes ntawm kev lag luam, thiab kev tshawb nrhiav cov kev koom tes muaj zog nrog ntau pawg. Lub tuam txhab tuav cov cai ywj pheej thiab cov khoom xa tawm, thiab cov khoom lag luam raug xa tawm mus rau Nyij Pooj, Kaus Lim Qab Zib suav nrog Asmeskas, Tebchaws Asmeskas, Is Nrias teb, thiab Africa.
Ntim
Galvanized Hlau Nruas Ntim: 180Kgs rau ib nruas, 14.4tons ib 20'fcl
Cia
Khaws rau hauv qhov chaw txias, cua thiab qhuav, tsis txhob muaj hnub ci, thiab tsis txhob sib ze ntawm cov hluav taws. Them sai sai rau kev saib xyuas nrog kev saib xyuas thaum tuav, thiab thauj raws li cov kev cai ntawm cov tshuaj lom
