Tetrahydrofuran | 109-99-9
Zambiri Zakuthupi:
| Dzina lazogulitsa | Tetrahydrofuran |
| Katundu | Madzi osasunthika opanda mtundu okhala ngati etherfungo. |
| Melting Point (°C) | -108.5 |
| Boiling Point (°C) | 66 |
| Kachulukidwe wachibale (Madzi=1) | 0.89 |
| Kuchuluka kwa nthunzi (mpweya=1) | 2.5 |
| Kuthamanga kwa nthunzi (kPa) | 19.3 (20°C) |
| Kutentha kwamphamvu (kJ/mol) | -2515.2 |
| Kutentha kwambiri (°C) | 268 |
| Critical pressure (MPa) | 5.19 |
| Octanol/water partition coefficient | 0.46 |
| Pothirira (°C) | -14 |
| Kutentha koyatsira (°C) | 321 |
| Kuphulika kwapamwamba (%) | 11.8 |
| Zochepa zophulika (%) | 1.8 |
| Kusungunuka | Kusungunuka pang'ono m'madzi, kusungunuka mu ethanol, ether. |
Katundu ndi Kukhazikika:
1.Zamadzimadzi zowoneka bwino zopanda utoto zokhala ndi fungo la ether. Kusakaniza ndi madzi. Kusakaniza kwa azeotropic ndi madzi kumatha kusungunula cellulose acetate ndi caffeine alkaloids, ndipo kusungunuka kumakhala bwino kuposa tetrahydrofuran yokha. General organic solvents monga Mowa, etha, aliphatic hydrocarbons, onunkhira hydrocarbons, chlorinated hydrocarbons, etc. akhoza bwino kusungunuka mu tetrahydrofuran. Ndikosavuta kuphatikiza ndi okosijeni mumlengalenga kuti mupange peroxide yophulika. Siziwononga zitsulo, komanso imakokolola mapulasitiki ambiri ndi mphira. Chifukwa cha kuwira, kung'anima kumakhala kochepa, kosavuta kugwira moto kutentha kutentha. Oxygen mumlengalenga panthawi yosungiramo amatha kupanga peroxide yophulika ndi tetrahydrofuran. Peroxides amatha kupangidwa pamaso pa kuwala ndi anhydrous mikhalidwe. Choncho, 0,05% ~ 1% ya hydroquinone, resorcinol, p-cresol kapena mchere wa ferrous ndi zinthu zina zochepetsera nthawi zambiri zimawonjezeredwa ngati antioxidants kuti alepheretse kubadwa kwa peroxides. Izi ndi otsika kawopsedwe, woyendetsa ayenera kuvala zida zodzitetezera.
2.Kukhazikika: Kukhazikika
3.Zinthu zoletsedwa: Acids, alkali, amphamvu oxidizing agents, oxygen
6.Makhalidwe opewera kuwonetseredwa: Kuwala, mpweya
7.Polymerization ngozi: Polymerization
Ntchito Yogulitsa:
1.Imagwiritsidwa ntchito kwambiri chifukwa cha kutsekemera kwake komanso kusakanikirana kwapamwamba ndi mkati mwa resins. Amagwiritsidwa ntchito ngati zosungunulira mu mawonekedwe, polymerisation reaction, LiAlH4 kuchepetsa condensation reaction ndi esterification reaction. Kusungunuka kwa polyvinyl chloride, polyvinylidene chloride ndi ma copolymers awo kumabweretsa njira yochepetsetsa ya viscosity, yomwe imagwiritsidwa ntchito popanga zokutira pamwamba, zotetezera, zomatira ndi mafilimu. Amagwiritsidwanso ntchito mu inki, chodulira utoto, chotsitsa, kuchiritsa pamwamba pa zikopa zopanga. Izi ndi self-polymerization ndi copolymerization, akhoza kupanga polyether polyurethane elastomer. Izi ndi zofunika mankhwala zopangira, akhoza kukonzekera butadiene, nayiloni, polybutylene glycol ether, γ-butyrolactone, polyvinylpyrrolidone, tetrahydrothiophene ndi zina zotero. Izi angagwiritsidwenso ntchito ngati wapakatikati mu kaphatikizidwe organic monga mankhwala.
2.Tetrahydrofuran ikhoza kusungunula zinthu zonse zakuthupi kupatulapo polyethylene, polypropylene ndi fluorine resins, makamaka polyvinyl chloride, polyvinylidene chloride ndi butylaniline zimakhala ndi zosungunuka bwino, zimagwiritsidwa ntchito kwambiri ngati zosungunulira zowonongeka.
3.Monga chosungunulira chodziwika bwino, tetrahydrofuran yakhala ikugwiritsidwa ntchito kwambiri popaka pamwamba, zotetezera zotetezera, inki, zotulutsa ndi mankhwala a pamwamba pa zikopa zopangira.
4.Tetrahydrofuran ndizofunikira kwambiri popanga polytetramethylene ether glycol (PTMEEG) ndi zosungunulira zazikulu zamakampani opanga mankhwala. Amagwiritsidwa ntchito ngati zosungunulira zachilengedwe ndi kupanga utomoni (makamaka vinilu resins), amagwiritsidwanso ntchito popanga butadiene, adiponitrile, adiponitrileadipic acid,hexanediamine ndi zina zotero.
5.Kugwiritsidwa ntchito ngati zosungunulira, kaphatikizidwe ka mankhwala apakati, kusanthula reagent.
Zolemba Zosungira:
1.Sungani m'nyumba yosungiramo zoziziritsa komanso mpweya wabwino.
2. Khalani kutali ndi moto ndi gwero la kutentha.
3. Kutentha kwa nyumba yosungiramo katundu sikuyenera kupitirira 29 ° C.
4.Sungani chidebe chosindikizidwa, osakhudzana ndi mpweya.
5. Iyenera kusungidwa mosiyana ndi oxidizing agents, acids,alkalis, ndi zina.ndipo zisasokonezedwe.
6.Adopt magetsi osaphulika komanso malo olowera mpweya wabwino.
7.Letsani kugwiritsa ntchito zida zamakina ndi zida zomwe zimakhala zosavuta kupanga zopsereza.
8.Malo osungira ayenera kukhala ndi zida zowonongeka zowonongeka ndi zipangizo zoyenera zogona.
