Diisopropyl ether/Isopropyl Ether
Chidule cha Zamalonda
Dzina la Mankhwala: Isopropyl Ether (yomwe imadziwikanso kuti Diisopropyl Ether, DIPE)
Nambala ya CAS: 108-20-3
Fomula ya Molekyulu: C₆H₁₄O
Kulemera kwa Mamolekyulu: 102.18 g/mol
Mawonekedwe: Madzi opanda mtundu, oyera okhala ndi fungo lofanana ndi la ether
Malo Owira: 68-69°C (154-156°F)
Malo Owala: -28°C (-18°F; chikho chotsekedwa)
Isopropyl Ether ndi mankhwala osungunuka, oyaka moto omwe amadziwika bwino chifukwa cha mphamvu zake zabwino zosungunulira. Monga mankhwala osungunuka a mid-polarity, amasinthasintha kusungunuka kwa zinthu zachilengedwe komanso pang'ono, zomwe zimapangitsa kuti ikhale chinthu chofunikira kwambiri popanga mankhwala, kuchotsa, komanso kuyeretsa mafakitale. Malo ake otentha komanso kusinthasintha pang'ono kumathandizanso kuti zinthu zibwezeretsedwe mosavuta mu njira zosungunulira, zomwe zimathandiza kuti ndalama zigwiritsidwe ntchito moyenera komanso kuti zinthu zizikhala zokhazikika.
Katundu Wofunika & Ubwino
| Katundu | Kufotokozera | Ubwino Wapakati |
| Kusungunuka | Amasungunuka pang'ono m'madzi (~1.2 g/L pa 20°C); amasakanikirana ndi ethanol, acetone, benzene, ndi zinthu zambiri zachilengedwe zosungunulira. | Yogwiritsidwa ntchito kwambiri posungunula mafuta, ma resini, ma sera, ndi mankhwala achilengedwe; imagwirizana ndi zinthu zodziwika bwino zosungunulira |
| Kusakhazikika | Kuthamanga kwa nthunzi: 16.9 kPa pa 20°C; kutentha kochepa (68 - 69°C) | Zimathandiza kuti madzi asungunuke mwachangu mu njira zophikira/kuuma; zimalekanitsa mosavuta kudzera mu distillation |
| Kukhazikika kwa Mankhwala | Yokhazikika pansi pa nthawi yosungira bwino; imawola pang'onopang'ono ikakhudzana ndi asidi amphamvu kapena peroxides | Yodalirika kusungidwa kwa nthawi yayitali (ngati yatetezedwa ku peroxides); yocheperako kuchitapo kanthu ndi zinthu zambiri |
| Kuchulukana (20°C) | 0.725 g/cm³ | Kuchuluka kochepa kumachepetsa ndalama zoyendera; zosavuta kugwiritsa ntchito posakaniza madzi |
| Kutentha Kodzidzimutsa | 443°C (829°F) | Ndi yotetezeka kuposa zosungunulira zomwe zimayaka moto kwambiri (monga diethyl ether) m'malo olamulidwa |
Mapulogalamu Odziwika
Kusinthasintha kwa zosungunulira za Isopropyl Ether komanso kusasinthasintha kwake zimapangitsa kuti zikhale zofunikira kwambiri m'mafakitale osiyanasiyana:
3.1 Kupanga ndi Kutulutsa Mankhwala
Kupanga kwa Zachilengedwe: Kumagwira ntchito ngati chosungunulira cha Grignard reactions, alkylations, ndi esterifications. Polarity yake yochepa imathandiza kuwongolera kuchuluka kwa reaction ndikuwonjezera zokolola za zinthu zomwe sizili polar intermediates.
Kuchotsa Madzi ndi Madzi: Kumagwiritsidwa ntchito kulekanitsa mankhwala achilengedwe kuchokera ku madzi (monga, kuchotsa mankhwala, mankhwala ophera tizilombo, kapena mankhwala okoma kuchokera ku msuzi wophika kapena zotulutsa zomera).
Kupanga Peroxide: Imagwira ntchito ngati zinthu zopangira diisopropyl peroxydicarbonate (IPP), yomwe imayambitsa kupanga ma polymer (monga polyvinyl chloride, PVC).
3.2 Kuyeretsa ndi Kuphimba Mafakitale
Chotsukira Mafuta: Chothandiza kuchotsa mafuta, mafuta, ndi sera kuchokera ku zitsulo (monga zida zamagalimoto, makina) chifukwa cha mphamvu yake yolimba ya ma hydrocarbon.
Zomatira ndi Zomatira: Zimachepetsa ma resins, ma lacquers, ndi zomatira kuti zisinthe kukhuthala, kuonetsetsa kuti zikugwiritsidwa ntchito bwino komanso zimachira mwachangu (zomwe zimagwiritsidwa ntchito mu zomatira zamatabwa, zomatira zamafakitale).
3.3 Kugwiritsa Ntchito Zachipatala ndi Kusanthula
Chromatography Solvent: Imagwiritsidwa ntchito ngati gawo loyenda mu gasi chromatography (GC) ndi high-performance liquid chromatography (HPLC) polekanitsa organic analytes.
Chosungunulira Chokonzekera Zitsanzo: Chimasungunula zitsanzo zolimba (monga mafuta, ma polima) kuti ziwunikidwe ndi mankhwala (monga Fourier-transform infrared spectroscopy, FTIR).
3.4 Mafuta ndi Mphamvu
Chowonjezera Mafuta: Chosakaniza ndi mafuta kuti chiwongolere kuchuluka kwa octane ndikuchepetsa kugwedezeka kwa injini; chimathandizanso kukhazikika kwa mafuta panthawi yosungira.
Chitetezo ndi Kutsatira Malamulo
4.1 Malangizo Oteteza
Chiwopsezo Choyaka: Madzi ndi nthunzi zomwe zimayaka kwambiri; sungani kutali ndi malawi otseguka, nthunzi zoyaka, ndi malo otentha (gwiritsani ntchito zida zoteteza kuphulika m'malo ogwirira ntchito).
Kupanga kwa Peroxide: Imatha kupanga ma peroxide ophulika ikakumana ndi mpweya, kuwala, kapena kutentha pakapita nthawi. Yesani ma peroxide (pogwiritsa ntchito pepala la starch-iodide) musanagwiritse ntchito; tayani ngati ma peroxide apezeka.
Zida Zodzitetezera: Valani magolovesi a nitrile, magalasi oteteza khungu, ndi chopumira mpweya (N95 kapena kupitirira apo) m'malo opanda mpweya wabwino. Pewani kuyang'ana khungu/maso (kungayambitse kuyabwa) ndi kupuma mpweya (kungayambitse chizungulire kapena nseru).
Kusunga: Sungani pamalo ozizira, amdima, komanso opumira bwino; gwiritsani ntchito magalasi a amber kapena zotengera za HDPE zomwe sizingalowe mpweya. Onjezani mankhwala oletsa peroxide (monga hydroquinone) kuti musunge kwa nthawi yayitali.
4.2 Kutsatira Malamulo
REACH (EU): Yolembetsedwa pansi pa REACH (Nambala Yolembetsa: 01-2119488787-46-xxxx); ikutsatira malamulo okhudza zinyalala za peroxide.
OSHA (US): Malire Okhudzana ndi Kuwonongeka Pantchito (OEL): 500 ppm (TWA ya maola 8); yogawidwa ngati madzi oyaka (NFPA Class IB).
Gulu la GHS: GHS02 (Madzi Oyaka Moto), GHS07 (Wokwiyitsa), GHS08 (Angapange ma peroxide ophulika).
Miyezo ya ISO: Imakwaniritsa ISO 6353-2 (mafotokozedwe a Reagent grade) kuti igwiritsidwe ntchito mu labotale.
Mfundo Zazikulu za Technical Data Sheet (TDS)
| Chizindikiro | Giredi ya Mafakitale | Kalasi ya Reagent | Njira Yoyesera |
| Chiyero (mphindi) | 99.0% | 99.5% | Kujambula kwa Gasi (GC) |
| Chinyezi (chosapitirira muyeso) | 0.1% | 0.05% | Karl Fischer Titration |
| Kuchuluka kwa Peroxide (kuchuluka) | 5 ppm | 1 ppm | Kuchuluka kwa Iodometric |
| Asidi (monga CH₃COOH, max) | 0.005% | 0.001% | Kuchuluka kwa Sodium Hydroxide |
| Zotsalira Zosasinthasintha (zosatha) | 5 mg/kg | 1 mg/kg | Gravimetry |
N’chifukwa Chiyani Muyenera Kusankha Isopropyl Ether Yathu (CAS 108-20-3)?
Kuopsa Kochepa kwa Peroxide: Katundu wathu amakhazikika ndi zoletsa zakudya, zomwe zimachepetsa kupanga peroxide ndikuwonetsetsa kuti akugwiritsidwa ntchito bwino.
Kuyera Kokhazikika: Kulamulira kuyera kwa batch-to-batch (≥99.0% ya kalasi yamafakitale) kumachepetsa zinyalala zomwe zimasokoneza njira.
Ma CD Opangidwa Mwamakonda: Amapezeka mu ng'oma za 1L, 20L, 200L, kapena matanki a ISO a maoda ang'onoang'ono a 实验室 kapena mafakitale akuluakulu.
Thandizo laukadaulo: Gulu lathu limapereka malangizo pa kuyesa peroxide, kusunga, ndi kukonza bwino ntchito (monga kusakaniza zosungunulira kuti zichotsedwe).
Kutsatira Malamulo Padziko Lonse: Kukwaniritsa miyezo yapadziko lonse lapansi (REACH, OSHA, ISO) kuti igwiritsidwe ntchito m'misika ya EU, US, ndi Asia.
Lumikizanani nafe
Kuti mudziwe mitengo, zitsanzo, kapena zikalata zonse za TDS/COA, funsani gulu lathu logulitsa:
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