Cov khoom lag luam
Petroleum ether yog ib organic sib xyaw. Nws yog ib qho tsis muaj pa thiab cov tshuaj lom neeg uas nws tuaj yeem tsis muaj ntau cov organic, tab sis yog insoluble hauv dej .
| Kev tshwm sim | Volatile, ntshiab, tsis muaj kob thiab tsis fluorescent kua |
| Ceev | 0.653 g / ml |
| Melting taw tes | < −73 °C (−99 °F; 200 K) |
| Kub taw tes | 42-62℃(108-144 Qib F; 315-335 k) |
|
Solubility hauv dej |
Insoluble |
| Solubility hauv ethanol | Soluble |
| Vapor siab | 31 KPA (20 degree) |
|
Cov indexial index (nD) |
1.370 |
| Viscosity | 0.46 mpa a |
Kev siv
- Muaj kuab tshuaj: panroleum ether yog cov organic zoo, siv dav hauv cov tshuaj, tshuab hluav taws xob, hluav taws xob thiab lwm yam kev lag luam .
- Extractant: Hauv chav kuaj, nws feem ntau siv los rho tawm thiab cais cov khoom xyaw organic los ntawm cov tshuaj organic los ntawm kev sib xyaw .
- Cov kuab tshuaj chromatographyrography: hauv roj chromatography ess yog feem ntau siv los ua tus qauv mobile lossis kev txhaj tshuaj .
Hom tau txais txiaj ntsig ntawm Gneegio:
1. Zoo} Cov nqi siab zoo, tus nqi sib tw, kev pabcuam zoo.
2.} nws yog cov neeg siv txoj cai xaiv lub pob .
3. Nws yog tus neeg siv khoom txoj cai xaiv cov kev ntim rau lawv cov khoom los ntawm kev ntim khoom tsis ntev los no.
{{04. Tshwj xeeb} Cov ntaub ntawv tshwj xeeb yog tau thaum tus neeg xaj xaj yog qhov loj txaus, suav nrog cov cai txo qis.
5. Peb lub tuam txhab tau cog lus tseg kom xa cov neeg siv khoom pob rau nws txhais tes kom tau kev ploj thiab kev ua haujlwm tsis txaus thiab ua haujlwm rau hauv.
Tuam txhab tau
GneebioMuab ntau cov khoom lag luam, suav nrog cov tshuaj tua kab mob {}}}} .} rau cov chaw tsim hluav taws xob, peb siv zoo Craftsmanship thiab nruj kev soj ntsuam .
Txais tos tiv tauj peb kom paub meej ntxiv, peb yuav muab koj tus nqi sib tw tshaj plaws!
Tshuaj Txhuam Cov Khoom Siv Tshuaj Txiaj Ntsig
Gneebio Companpress Ib puag ncig
Cov neeg muas zaub mus xyuas GNEEBio Group
Tshuaj Txhuam Siv Khoom Siv Tshuaj Txhuam - Gneebio
Cov FAQ
Q: Yuav ua li cas thiaj tau txais ib qho qauv?
A: Yog tias koj xav tau cov qauv, thov sib txuas lus nrog peb .
Q: Koj puas yog chaw tsim khoom?
A: Peb yog cov chaw tsim tshuaj tshaj lij, muab OEM ODM thiab cov kev pabcuam customized nrog ntau dua 100 xyoo kev.
Q: Txoj kev them nyiaj yog dab tsi?
A: Peb lub sijhawm them nyiaj yog T / T 30% ua ntej, 70% tom qab tau txais daim ntawv B / L (D / P
Q: Koj txoj kev kuaj xyuas kom zoo ua haujlwm li cas?
A: Peb muaj cov kws tshaj lij QC uas ua peb puag ncig zoo kev tshuaj xyuas kom ntseeg tau tias cov khoom xa tawm yog tsis muaj teeb meem .
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.
Cim npe nrov: Exporum Petroleum ether kev sib xyaw Cas}} {0 ws {}} Cov chaw tsim khoom, cov chaw tsim khoom, chaw tsim khoom