Tetrahydrofuran
Dzina lina la Chingerezi: THF; oxolane; Butane, alpha,delta-oxide; Cyclotetramethylene oxide; Diethylene oxide; Furan, tetrahydro-; Furanidine; 1, 2, 3, 4 – tetrahydro – 9 h – fluoren – 9 – one
Nambala ya CAS: 109-99-9
Nambala ya EINECS: 203-726-8
Fomula ya maselo: C4H8O
Kulemera kwa maselo: 184.2338
InChI: InChI = 1 / C13H12O/c14-13-11-7-13-11-7-9 (11) 10-6-2-10-6-2 (10) 13 / h1, 3, 5, 7 H, 2,4,6,8 H2
Kapangidwe ka maselo: Tetrahydrofuran 109-99-9
Kuchuluka: 1.17 g/cm3
Malo osungunuka: 108.4 ℃
Kutentha: 343.2°C pa 760 mmHg
Kuwala: 150.7 ° C
Kusungunuka kwa madzi: Kusakaniza
Kuthamanga kwa nthunzi: 7.15E-05mmHg pa 25°C
Kapangidwe ka thupi ndi mankhwala:
Madzi owoneka bwino opanda mtundu, okhala ndi fungo la ether.
Kutentha kwa 67 ℃
Malo oziziritsa - 108 ℃
Kuchulukana kwachibale 0.985
Chizindikiro cha refractive cha 1.4050
Powonjezera kutentha - 17 ℃
Kusungunuka kumasakanikirana ndi madzi, mowa, ketone, benzene, ester, ether, ndi hydrocarbon.
Kugwiritsa Ntchito Mankhwala:
Amagwiritsidwa ntchito ngati zosungunulira komanso zopangira zopangira zachilengedwe

Tetrahydrofuran, chidule chake THF, ndi mankhwala achilengedwe a heterocyclic. Ili m'gulu la ether ndipo ndi chinthu chonse cha hydrogenation cha furan. Tetrahydrofuran ndi imodzi mwa ether yamphamvu kwambiri ya polar. Imagwiritsidwa ntchito ngati chosungunulira chapakati cha polar muzochita zamankhwala ndi kutulutsa. Ndi madzi osasinthasintha opanda mtundu kutentha kwa chipinda ndipo ali ndi fungo lofanana ndi diethyl ether. Imasungunuka m'madzi, ethanol, ether, acetone, Chemicalbook benzene ndi zosungunulira zina zachilengedwe, zomwe zimadziwika kuti "zosungunulira zonse". Imatha kusakanikirana pang'ono ndi madzi kutentha kwa chipinda, ndichifukwa chake ogulitsa ena osaloledwa a reagent amapeza phindu lalikulu posakaniza tetrahydrofuran reagent ndi madzi. Popeza THF imakonda kupanga peroxides mu malo osungira, antioxidant BHT nthawi zambiri imawonjezeredwa kuzinthu zamafakitale. Madzi ndi ochepera 0.2%. Ali ndi mawonekedwe a poizoni wochepa, kutentha kochepa komanso kusinthasintha kwabwino.
Pakadali pano, opanga tetrahydrofuran m'nyumba akuphatikizapo BASF China, Dalian Yizheng (DCJ), Shanxi Sanwei, Sinochem International, ndi Petrochina Qianguo Refinery, ndi zina zotero, ndipo mafakitale ena a PBT amapanganso gawo la zinthu zina. Ma index ogulitsa a LyondellBasell Industries ku United States ndi Europe ndi awa: purity 99.90% Chemicalbook, chroma (APHA) 10, chinyezi 0.03%, THF hydroperoxide 0.005%, total deficit 0.05%, ndi oxidation inhibitor 0.025% ~ 0.035%. Mu makampani opanga polyurethane, kugwiritsa ntchito kofunikira kwambiri ndi monga monomer material ya polytetrahydrofuranediol (PTMEG), yomwe ndi imodzi mwamagwiritsidwe ntchito akuluakulu a THF.

Ntchito zazikulu:
Cholinga chachikulu
1. Zipangizo zopangira polyurethane fiber tetrahydrofuran zitha kukhala polycondensation (cationic initiated ring-opening repolymerization) mu polytetramethylene ether diol (PTMEG), yomwe imadziwikanso kuti tetrahydrofuran homopolyether. PTMEG ndi TOLuene diisocyanate (TDI) zimapangidwa kukhala mphira wapadera wokhala ndi kukana bwino kukalamba, kukana mafuta, kutentha kochepa komanso mphamvu zambiri. Block polyester elastomer idapangidwa ndi dimethyl terephthalate ndi 1, 4-butanediol. Ulusi wa polyurethane elastic (SSPANDEX, SPANDEX), mphira wapadera ndi zokutira zina zapadera zimapangidwa kuchokera ku 2000 PTMEG ndi p-methylene bis (4-phenyl) diisocyanate (MDI). Ntchito yofunika kwambiri ya THF ndikupanga PTMEG. Malinga ndi ziwerengero zoyambira, 80% ya THF padziko lonse lapansi imagwiritsidwa ntchito popanga PTMEG, pomwe PTMEG imagwiritsidwa ntchito kwambiri popanga ulusi wa spandex wosalala.
2. Tetrahydrofuran ndi chosungunulira chabwino chomwe chimagwiritsidwa ntchito kwambiri, makamaka choyenera kusungunula PVC, polyvinylidene chloride ndi butaniline. Chimagwiritsidwa ntchito kwambiri ngati chosungunulira pamwamba, choteteza dzimbiri, inki yosindikizira, tepi yamaginito ndi chophimba filimu. Chophimba tepi yamaginito, chophimba pamwamba pa PVC, KUTSUTSA PVC reactor, kuchotsa filimu ya PVC, chophimba cellophane, inki yosindikizira pulasitiki, chophimba polyurethane cha thermoplastic, chosungunulira cha zomatira, chomwe chimagwiritsidwa ntchito kwambiri mu zophimba pamwamba, zophimba zoteteza, inki, zotulutsa ndi zomaliza za chikopa chapadziko lapansi.
3. Amagwiritsidwa ntchito ngati zinthu zopangira zinthu zachilengedwe monga mankhwala opangira tetrahydrothiophene, 1.4-dichloroethane, 2.3-dichlorotetrahydrofuran, pentolactone, butyllactone ndi pyrrolidone, ndi zina zotero. Mu makampani opanga mankhwala, amagwiritsidwa ntchito popanga kepidine, rifamycin, progesterone ndi mankhwala ena a mahomoni. Tetrahydrothiophenol, yomwe imapangidwa ndi hydrogen sulfide treatment, ingagwiritsidwe ntchito ngati fungo (chowonjezera chozindikiritsa) mu mpweya wamafuta ndipo ndiyenso chosungunulira chachikulu mumakampani opanga mankhwala.
4. Ntchito zina za chromatographic solvents (gel permeation chromatography), zomwe zimagwiritsidwa ntchito popangira kukoma kwa gasi wachilengedwe, acetylene extraction solvent, zinthu za polymer, monga light stabilizer. Pogwiritsa ntchito kwambiri tetrahydrofuran, makamaka kukula kwachangu kwa makampani a spandex ku China m'zaka zaposachedwa, kufunikira kwa PTMEG ku China kukuwonjezeka tsiku ndi tsiku, ndipo kufunikira kwa tetrahydrofuran kukuwonetsanso kukula kwachangu.