I-Tetrahydrofuran
Isibizo sesiNgisi: THF; uxolane; Butane, alpha, delta-oxide; I-Cyclotetramethylene oxide; I-Diethylene oxide; Furan, tetrahydro-; I-Furanidine; 1, 2, 3, 4 - tetrahydro - 9 h - fluoren - 9 - eyodwa
Inombolo ye-CAS. : 109-99-9
Inombolo ye-EINECS : 203-726-8
Ifomula yemolekyuli: C4H8O
Isisindo se-molecule: 184.2338
I-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
Isakhiwo samangqamuzana: Tetrahydrofuran 109-99-9
Ukuminyana: 1.17 g/cm3
Iphuzu elincibilikayo: 108.4 ℃
Indawo yokubilisa: 343.2°C ku-760 mmHg
I-Flash: 150.7 ° C
Ukunyibilika kwamanzi: Okuxubile
Umfutho we-steam: 7.15E-05mmHg ku-25°C
Izakhiwo zomzimba namakhemikhali:
Uketshezi olusobala olungenambala olungenambala, lube nephunga le-ether.
Iphuzu lokubilisa elingu-67 ℃
Indawo yokubanda – 108 ℃
Ukuminyana okuhlobene 0.985
Inkomba ye-refractive ye-1.4050
Iphoyinti elikhanyayo – 17 ℃
Ukuncibilika kuhlangana namanzi, utshwala, i-ketone, i-benzene, i-ester, i-ether, i-hydrocarbon.
Ukusetshenziswa komkhiqizo:
Isetshenziswa njenge-solvent ne-raw material ye-organic synthesis

I-Tetrahydrofuran, efushanisiwe i-THF, iyinhlanganisela ye-heterocyclic organic. Iyingxenye yeqembu le-ether futhi iwumkhiqizo ophelele we-hydrogenation we-furan ehlanganisiwe enamakha. I-Tetrahydrofuran ingenye ye-ether ye-polar enamandla kakhulu. Isetshenziswa njenge-solvent ye-polar ephakathi ekuphenduleni kwamakhemikhali kanye nokukhipha. Iwuketshezi oluguquguqukayo olungenambala elisezingeni lokushisa elilingana negumbi futhi linephunga elifana nele-diethyl ether. Incibilika emanzini, i-ethanol, i-ether, i-acetone, i-Chemicalbook benzene nezinye izincibilikisi eziphilayo, ezaziwa ngokuthi “i-universal solvent”. Ingase ihlangane kancane namanzi ezingeni lokushisa legumbi, yingakho abanye abathengisi be-reagent abangekho emthethweni benza inzuzo enkulu ngokuxuba i-tetrahydrofuran reagent namanzi. Njengoba i-THF ijwayele ukwenza ama-peroxides endaweni yokugcina, i-antioxidant BHT ngokuvamile yengezwa emikhiqizweni yezimboni. Amanzi angaphansi kuka-0.2%. Inezici zobuthi obuphansi, indawo ephansi yokubilisa kanye ne-fluidity enhle.
Njengamanje, abakhiqizi abakhulu basekhaya be-tetrahydrofuran bahlanganisa i-BASF China, i-Dalian Yizheng (DCJ), i-Shanxi Sanwei, i-Sinochem International, ne-Petrochina Qianguo Refinery, njll., kanye nezinye izitshalo ze-PBT nazo zikhiqiza ingxenye yemikhiqizo. Izinkomba zokuthengisa ze-LyondellBasell Industries e-United States naseYurophu yilezi: ubumsulwa 99.90%Chemicalbook, chroma (APHA) 10, umswakama 0.03%, THF hydroperoxide 0.005%, ukungcola okuphelele 0.05%, kanye ne-oxidation inhibitor 5% ~ 0.025% ~ 0.025%. Embonini ye-polyurethane, ukusetshenziswa okubaluleke kakhulu kunjenge-monomer material ye-polytetrahydrofuranediol (PTMEG), okungenye yezinto ezisetshenziswa kakhulu ze-THF.

Ukusetshenziswa okuyinhloko:
Inhloso eyinhloko
1. Izinto ezisetshenziswayo zokwenziwa kwe-polyurethane fiber tetrahydrofuran ingaba yi-polycondensation (i-cationic initiated ring-opening repolymerization) ibe yi-polytetramethylene ether diol (PTMEG), eyaziwa nangokuthi i-tetrahydrofuran homopolyether. I-PTMEG kanye ne-TOLuene diisocyanate (TDI) zenziwa irabha ekhethekile enokumelana okuhle nokugqoka, ukumelana nowoyela, ukusebenza okuphansi kwezinga lokushisa namandla aphezulu. I-block polyether polyester elastomer yalungiswa nge-dimethyl terephthalate kanye ne-1, 4-butanediol. Imicu ye-polyurethane elastic (i-SPANDEX, SPANDEX), irabha ekhethekile nezinye izimbotshana ezinenhloso ezikhethekile zenziwe kusukela ku-2000 PTMEG kanye ne-p-methylene bis (4-phenyl) diisocyanate (MDI). Ukusetshenziswa okubaluleke kakhulu kwe-THF ukukhiqiza i-PTMEG. Ngokwezibalo ezingezinhle, ngaphezu kwe-80% ye-THF emhlabeni isetshenziselwa ukukhiqiza i-PTMEG, kuyilapho i-PTMEG isetshenziselwa ukukhiqiza i-spandex fiber enwebekayo.
2. I-Tetrahydrofuran iyi-solvent enhle evame ukusetshenziswa, ikakhulukazi efanelekile ukuhlakaza i-PVC, i-polyvinylidene chloride ne-butaniline. Isetshenziswa kabanzi njenge-solvent yokwembathisa indawo engaphezulu, i-anti-corrosion coating, uyinki wokuphrinta, itheyiphu kazibuthe nokuhlanganisa ifilimu. I-Magnetic tape enamathela, i-PVC surface enamathela, UKUHLANZA i-PVC reactor, ukususwa kwefilimu ye-PVC, ukunamathela kwe-cellophane, inki yokuphrinta yepulasitiki, i-thermoplastic polyurethane coating, i-solvent for adhesives, esetshenziswa kakhulu embotsheni yangaphezulu, okokuvikela, oyinki, izikhiqizo kanye nezinto eziqedwayo zesikhumba zokwenziwa. .
3. Isetshenziswa njengezinto zokusetshenziswa ze-organic synthesis ezifana nemithi yokukhiqiza i-tetrahydrothiophene, i-1.4-dichloroethane, i-2.3-dichlorotetrahydrofuran, i-pentolactone, i-butyllactone ne-pyrrolidone, njll. progesterone nezinye izidakamizwa ze-hormonal. I-Tetrahydrothiophenol, ekhiqizwa ukwelashwa kwe-hydrogen sulfide, ingasetshenziswa njenge-ejenti yephunga (isithasiselo sokuhlonza) kugesi kaphethiloli futhi iyisincibilikisi esikhulu embonini yezemithi.
4. Okunye ukusetshenziswa kwezinyibilikisi ze-chromatographic (i-gel permeation chromatography), esetshenziselwa ukunambitheka kwegesi yemvelo, i-acetylene extraction solvent, izinto ze-polymer, njenge-stabilizer yokukhanya. Ngokusetshenziswa okubanzi kwe-tetrahydrofuran, ikakhulukazi ukukhula okusheshayo kwemboni ye-spandex e-China eminyakeni yamuva, isidingo se-PTMEG e-China sikhula usuku nosuku, futhi isidingo se-tetrahydrofuran siphinde sibonise umkhuba wokukhula ngokushesha.