Diisopropyl ether/Isopropyl Ether
Txheej Txheem Cej Luam Khoom
Lub Npe Tshuaj: Isopropyl Ether (tseem hu ua Diisopropyl Ether, DIPE)
Tus lej CAS: 108-20-3
Cov mis molecular: C₆H₁₄O
Qhov Hnyav Molecular: 102.18 g/mol
Tsos: Tsis muaj xim, kua ntshiab nrog rau ntxhiab tsw zoo li ether
Kub Npau: 68-69°C (154-156°F)
Flash Point: -28°C (-18°F; khob kaw)
Isopropyl Ether yog ib qho tshuaj ether uas yoo yaj thiab yoo hlawv uas paub dav txog nws cov khoom zoo heev rau kev yaj. Ua ib qho tshuaj yaj nruab nrab, nws sib npaug kev yaj rau ob qho tib si organic thiab me ntsis polarity, ua rau nws yog ib qho khoom siv tseem ceeb hauv kev tsim tshuaj, kev rho tawm, thiab kev ntxuav hauv kev lag luam. Nws qhov kub qis thiab qhov hloov pauv nruab nrab kuj ua rau yooj yim rov qab tau hauv cov txheej txheem distillation, txhawb kev siv nyiaj thiab kev ruaj khov.
Cov Khoom Tseem Ceeb & Cov Txiaj Ntsig
| Vaj tse | Cov Lus Qhia Tshwj Xeeb | Qhov Zoo Tshaj Plaws |
| Kev yaj tau | Me ntsis yaj hauv dej (~1.2 g/L ntawm 20°C); sib xyaw nrog ethanol, acetone, benzene, thiab feem ntau cov organic solvents | Ntau yam rau kev yaj cov roj, cov resins, waxes, thiab cov organic compounds; sib xws nrog cov co - solvents feem ntau |
| Kev hloov pauv | Lub zog ua pa: 16.9 kPa ntawm 20°C; qhov kub tsawg (68 - 69°C) | Ua kom cov dej noo sai sai hauv cov txheej txheem txheej/qhuav; yooj yim sib cais los ntawm kev distillation |
| Kev Ruaj Ntseg Tshuaj | Ruaj khov nyob rau hauv cov xwm txheej khaws cia ib txwm; decomposes qeeb qeeb thaum kov cov kua qaub muaj zog lossis peroxides | Txhim khu kev qha rau kev khaws cia ntev (thaum tiv thaiv los ntawm peroxides); tsawg kawg nkaus reactivity nrog feem ntau substrates |
| Qhov Ceev (20 ° C) | 0.725 g/cm³ | Qhov ceev tsawg txo cov nqi thauj mus los; yooj yim rau kev tuav hauv cov txheej txheem sib tov kua |
| Kub Kub Uas Pib Hluav Taws Xob | 443°C (829°F) | Muaj kev nyab xeeb dua li cov kuab tshuaj uas yooj yim hlawv (piv txwv li, diethyl ether) hauv cov chaw tswj hwm |
Cov Ntawv Thov Ib Txwm Muaj
Isopropyl Ether txoj kev ua tau zoo thiab kev hloov pauv ntawm cov kuab tshuaj ua rau nws tseem ceeb heev rau ntau yam lag luam:
3.1 Kev Tsim Tshuaj thiab Kev Rho Tawm
Kev Tsim Khoom Siv Organic: Ua haujlwm ua cov tshuaj yaj rau Grignard cov tshuaj tiv thaiv, alkylations, thiab esterifications. Nws qhov polarity qis pab tswj cov nqi tshuaj tiv thaiv thiab txhim kho cov khoom tsim tawm rau cov khoom nruab nrab uas tsis yog polar.
Kev Rho Kua-Kua: Siv los cais cov organic compounds ntawm cov kua dej (piv txwv li, rho cov tshuaj, tshuaj tua kab, lossis cov khoom qab los ntawm cov kua fermentation lossis cov nroj tsuag extracts).
Kev Tsim Peroxide: Ua haujlwm ua cov khoom siv raw rau kev tsim diisopropyl peroxydicarbonate (IPP), uas yog ib qho pib rau kev tsim cov polymer (piv txwv li, polyvinyl chloride, PVC).
3.2 Kev Ntxuav thiab Txheej Txheem Kev Lag Luam
Tus Neeg Ua Kom Cov Roj Tawm: Zoo rau kev tshem tawm cov roj, roj, thiab quav ciab ntawm cov khoom hlau (piv txwv li, cov khoom siv hauv tsheb, tshuab) vim nws muaj zog yaj tau cov hydrocarbons.
Cov Tshuaj Pleev Xim & Cov Tshuaj Nplaum: Ua rau cov resins, lacquers, thiab cov tshuaj nplaum kom yaj kom kho qhov viscosity, ua kom yooj yim siv thiab kho sai (siv rau hauv cov tshuaj pleev xim ntoo, cov tshuaj nplaum rau kev lag luam).
3.3 Kev Siv Hauv Chaw Kuaj Mob & Kev Tshawb Fawb
Chromatography Solvent: Siv ua ib feem ntawm cov khoom siv mobile hauv gas chromatography (GC) thiab high-performance liquid chromatography (HPLC) rau kev sib cais cov organic analytes.
Cov Tshuaj Rau Kev Npaj Qauv: Yaj cov qauv khov (piv txwv li, lipids, polymers) rau kev tshuaj xyuas tshuaj (piv txwv li, Fourier-transform infrared spectroscopy, FTIR).
3.4 Roj thiab Zog
Cov Tshuaj Ntxiv Roj: Sib xyaw nrog roj av kom txhim kho qib octane thiab txo qhov cav tsoo; kuj ua rau roj ruaj khov thaum lub sijhawm khaws cia.
Kev Nyab Xeeb & Kev Ua Raws Cai
4.1 Cov Lus Qhia Txog Kev Nyab Xeeb
Kev Pheej Hmoo Kub Hnyiab: Cov kua thiab cov pa uas kub hnyiab heev; khaws cia deb ntawm cov nplaim taws qhib, cov hluav taws xob, thiab cov chaw kub (siv cov khoom siv uas tsis tawg hauv cov chaw ua haujlwm).
Kev Tsim Peroxide: Thaum raug cua, lub teeb, lossis cua sov, nws tuaj yeem tsim cov peroxides tawg. Sim cov peroxides (siv daim ntawv starch-iodide) ua ntej siv; pov tseg yog tias pom cov peroxides.
Kev Siv Cov Khoom Siv Tiv Thaiv: Hnav cov hnab looj tes nitrile, cov tsom iav tiv thaiv tshuaj lom neeg, thiab lub tshuab ua pa pa (N95 lossis siab dua) hauv cov chaw uas tsis muaj cua nkag. Tsis txhob kov daim tawv nqaij/qhov muag (tej zaum yuav ua rau khaus) thiab nqus pa pa (tej zaum yuav ua rau kiv taub hau lossis xeev siab).
Kev Khaws Cia: Khaws cia rau qhov chaw txias, tsaus ntuj, thiab muaj cua nkag tau zoo; siv cov thawv iav xim av lossis HDPE uas kaw tau zoo. Ntxiv cov tshuaj peroxide inhibitor (piv txwv li, hydroquinone) rau kev khaws cia ntev.
4.2 Kev Ua Raws Cai
REACH (EU): Sau npe raws li REACH (Tus lej rau npe: 01-2119488787-46-xxxx); ua raws li cov kev txwv ntawm cov khoom tsis huv ntawm peroxide.
OSHA (Tebchaws Meskas): Kev Txwv Kev Ua Haujlwm (OEL): 500 ppm (8-teev TWA); raug cais ua kua dej uas yooj yim hlawv (NFPA Class IB).
GHS Kev Faib Tawm: GHS02 (Cov Kua Uas Yooj Yim Rau Kev Kub Hnyiab), GHS07 (Ua Rau Khaus), GHS08 (Yuav ua rau muaj cov peroxides tawg).
Cov Qauv ISO: Ua tau raws li ISO 6353-2 (Cov lus qhia qib Reagent) rau kev siv hauv chav kuaj mob.
Cov Ntaub Ntawv Txog Kev Siv Tshuab (TDS) Cov Ntsiab Lus Tseem Ceeb
| Cov Qauv | Qib Kev Lag Luam | Qib Reagent | Txoj Kev Ntsuas |
| Kev huv (min) | 99.0% | 99.5% | Kev siv roj chromatography (GC) |
| Cov ntsiab lus noo noo (max) | 0.1% | 0.05% | Kev Ntsuas Karl Fischer |
| Cov ntsiab lus Peroxide (max) | 5 ppm | 1 ppm | Kev Ntsuas Iodometric |
| Acidity (raws li CH₃COOH, max) | 0.005% | 0.001% | Kev Ntsuas Sodium Hydroxide |
| Cov Khoom Tsis Tshua Muaj Peev Xwm Hloov Pauv (max) | 5 mg/kg | 1 mg/kg | Kev ntsuas qhov hnyav |
Vim li cas ho xaiv peb cov Isopropyl Ether (CAS 108-20-3)?
Kev Pheej Hmoo Tsis Muaj Peroxide: Peb cov khoom tau ruaj khov nrog cov tshuaj tiv thaiv qib zaub mov, txo cov peroxide tsim thiab ua kom muaj kev nyab xeeb siv.
Kev Huv Si Sib Xws: Kev tswj kev huv si ntawm ntau pawg (≥99.0% rau qib kev lag luam) txo cov khoom tsis huv uas cuam tshuam cov txheej txheem.
Kev Ntim Khoom Tshwj Xeeb: Muaj nyob rau hauv 1L, 20L, 200L nruas, lossis ISO tanks rau me me 实验室 lossis ntau qhov kev txiav txim lag luam.
Kev Txhawb Nqa Txog Kev Siv Tshuab: Peb pab neeg muab kev qhia txog kev sim peroxide, kev khaws cia, thiab kev siv kom zoo tshaj plaws (piv txwv li, kev sib tov cov kuab tshuaj rau kev rho tawm).
Kev Ua Raws Cai Thoob Ntiaj Teb: Ua tau raws li cov qauv thoob ntiaj teb (REACH, OSHA, ISO) rau kev siv hauv EU, Tebchaws Meskas, thiab cov lag luam Es Xias.
Tiv Tauj Peb
Yog xav paub tus nqi, cov qauv, lossis cov ntaub ntawv TDS/COA tag nrho, hu rau peb pab neeg muag khoom:
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