Cov khoom lag luam
Dab tsi yog 95-93-2?
1,2,4, {5- tetramethylbzene (CAS tsis muaj .: {4}}} ntawm c₁₀h₁₄ thiab molecular hnyav ntawm 134.22 g / mol. Nws cov qauv molecular muaj nqis plaub metyl pab hloov pauv ntawm lub nplhaib Benzene, ua rau nws lub ntsej muag zoo tshaj plaws nrog lub siab loj tshaj plaws.
1,2,4, {5- tetramethylbzene tshwm li dawb lossis tsis muaju muaju nyob rau hauv chav tsev kub nrog lub camphor zoo li tsw. Nws muaj lub ntsiab lus melting ntawm 78-81 kev kawm txog kev npau taws ntawm xyoo 196-197 degree, ua kua ntom ntom ntawm {}. 89 g / cm³. 89 g / cm³. Nws yog insoluble nyob rau hauv dej (solubility 0. 00348 g / l) tab sis solub, diethyl ethane, benzene, thiab acetone.
Cov ntaub ntawv yooj yim
organic synthesis CAS 95-93-2
| Khoom npe | 1,2,4, 5- tetramethylbzene |
| Cas | 95-93-2 |
| Molecular Cov Qauv | C10H14 |
| Tus hniav loj | 134.22 |
| Ceev | {{0 {0}}. 838G / MLAT 25 degree (Lit.) |
| Melting taw tes | 78 degree |
| Boling Taw | 196-197 degree |
| Flash point | 165 Degree F |
| Dej solubility | insoluble |
| So | 0.00348g/l |
| Vapor presure | 160 hli HG (140 degree) |
| Xim | Dawb rau yuav luag dawb |
Kev siv
Kwv yees li 90% ntawm 1,2,4, {{4 4}} tetrramethoric dianhydride (pmda), tus lej tseem ceeb rau cov neeg sawv cev polyimide, epoxy resin catch tus neeg sawv cev, thiab cov tshuab yas. PMDA tau siv dav hauv Aerospace, cov ntaub ntawv hluav taws xob hauv hluav taws xob, thiab lwm yam lag luam.
Lwm yam kev siv suav nrog kev ua haujlwm raws li lub siab-boiling-point daws cov roj hmab thiab cov khoom siv, tua cov tshuaj hauv hluav taws xob, thiab cov surfactants.
Cov Ntaub Ntawv Kev Nyab Xeeb
Nws yuav tsum tau muab cia rau hauv qhov chaw txias, cua thiab qhuav, kom deb ntawm cov hluav taws thiab muaj zog oxidants, thiab zam kev sib xyaw nrog cov tshuaj acidic. Nws yog tswj hwm ua cov khoom siv hluav taws xob (Un. 1325) rau kev thauj mus los, thiab chav ntim ntim yog III. Nws cov qauv zoo ib yam tso cai rau nws tau sib cais los ntawm lwm lub tetramethylbzene isomers los ntawm khov crystallization.
Tuam txhab tau
Gneebioyog kev ua lag luam-taw qhia thiab tsim kho cov tuam txhab tshuaj tsim kho tshiab. Los ntawm kev tsim kho thev naus laus zis, peb tau cog lus rau kev daws cov txheej txheem kev ua haujlwm ntawm R & D thiab cov khoom lag luam zoo thiab cov kev pabcuam tsawg rau lub lag luam hauv ntiaj teb.
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Cov FAQ
Lub zog ntawm koj lub tuam txhab yog dab tsi?
Tsim nyob rau hauv 2016, peb muaj ntau tshaj 10 xyoo ntawm kev paub hauv kev lag luam tshuaj, thiab peb tuaj yeem muab ntau tshaj 10,}} zoo siab, reagents thiab dyes, uas txaus siab rau lub koob npe loj hauv kev lag luam.
Koj MOQ yog dab tsi?
Rau cov khoom siv nqi siab, peb moq yog 1 gram, feem ntau yog 10 gram. Rau lwm cov khoom lag luam tsawg, peb moq yog 100 grams thiab 1 phaus.
Koj yuav ua li cas thiaj lis kev tsis txaus siab zoo?
Ua ntej tshaj plaws, peb txoj kev tswj hwm zoo tau txo cov teeb meem zoo los ze rau xoom. Yog tias qhov teeb meem zoo yog tshwm sim los ntawm peb, peb yuav hloov cov khoom lossis them nyiaj rov qab koj poob dawb.
Ntev npaum li cas yog lub sijhawm khoom xa tuaj?
Cov khoom me me ntawm cov khoom lag luam yuav xa tawm hauv 3 hnub ua haujlwm. Rau tej khoom muag tshwj xeeb, peb yuav tshwj tseg qhov chaw tom qab qhov kev txiav txim tau lees paub. Feem ntau peb yuav npaj cov zaub mov xa tuaj tsis pub dhau 7-15 hnub.
Cim npe nrov: 1,2,4, {5- tetramethylbzene rau organic synthesis ua li {} {9 {9} Cov neeg tsim khoom, cov chaw tsim khoom, Hoobkas
