Cov khoom lag luam
Paraxylene yog cov kua tsis muaj kob uas muaj cov tshuaj tsw qab lossis ua kom tawg, actone thiab decomposition ntawm cov kub kub tsim cov phom sij txaus ntshai .
|
Tshuaj Cov Qauv |
C8H10 |
| Tus hniav loj | 106.168 G · Mol−1 |
| Kev tshwm sim | Muaj kua tsis muaj xim |
| Tus ntxhiab | Yeeb yaj kiab |
| Ceev | 0.861 g / ml |
| Melting taw tes | 13.2 Qib (55.8 Degree F; 286.3 k) |
| Kub taw tes | 138.35 Degree (281.03 Qib F; 411.50 K) |
|
Solubility hauv dej |
Insoluble |
| Solubility hauv ethanol | Heev soluble |
| Solubility hauv diethy ether | Heev soluble |
| Vapor siab | 9 mmhg (20 degree)[5] |
|
Sib Nqus Tau Zoo (χ) |
-76.78·10−6cm3mol |
|
Cov indexial index (nD) |
1.49582 |
| Viscosity | 0. 7385 CP ntawm 0 degree 0.6475 CP ntawm 20 degree |
Kev siv
- Kev tsim cov ntaub ntawv polyester: ntau dua 99% ntawm paraxylene yog siv nyob rau hauv kev tsim cov tshuab huv si acid (PTA) {1}.
- Kev npaj poly paraxylene: poly paraxylene tuaj yeem ua rau cov qauv duab ua yeeb yaj kiab, yog hom kev tiv thaiv, tshuaj, tiv thaiv thiab lwm cov liaj teb.
- Lwm yam kev siv: paraxylene yog cov khoom siv raw rau kev tsim khoom, thiab kuj tseem siv tau los ua cov tshuaj, thiab kuj tseem ua rau cov qauv tshuaj rau chromatogrographic.
Tuam txhab tau
Ua raws li kev ua lag luam lub tswv yim ntawm "thev naus laus zis, kev ua lag luam tshwj xeeb thiab kev tswj hwm zoo los ntawm kev tswj hwm kev ua tau zoo thiab kev tswj hwm kev ua tau zoo thiab kev tswj hwm kev ua haujlwm.
Txais tos tiv tauj peb kom paub meej ntxiv, peb yuav muab koj tus nqi sib tw tshaj plaws!
Cov FAQ
Q: Yuav ua li cas txog koj tus nqi?
A: Hoobkas nqe {{}}} Koj tuaj yeem xa koj cov lus nug (cov khoom lag luam, qhov chaw koj tuaj yeem tiv toj nrog koj tsis pub dhau 24 teev.
Q: Koj MOQ yog dab tsi?
A: Koj tuaj yeem ntsuas cov qauv xws li ob peb gram / kilograms .
b . Koj tseem tuaj yeem tso ib qho kev txiav txim me me xws li koj muaj kev ntseeg siab} Tom qab peb muaj kev ntseeg siab .
Q: Koj lub sijhawm xa khoom dab tsi?
A: Feem ntau cov zaub mov xa tuaj yuav ua nyob rau hauv 7-15 hnub tawm tsam kev paub tseeb .
Q: Yuav ua li cas kom tau txais cov lus hais?
A: Peb xav tau qee lub sijhawm los xam thiab xav tau cov ntaub ntawv tshwj xeeb los ntawm koj {{} Cov ntaub ntawv xav tau rau cov lus yuav txawv ntawm cov khoom sib txawv .
Xws li:
. Cov txheej txheem thiab cov khoom lag luam thiab khoom lag luam khoom.
b . cov khoom siv thiab loj .
c . kev txiav txim kom muaj nuj nqis .
Cim npe nrov: Paraxylene lossis P-Xylene CAS}}}}}}}, Tuam Tshoj Paraxylene lossis P-Xylene Case {3} Cov neeg tsim khoom, cov chaw tsim khoom, Hoobkas