I-Tetrahydrofuran
Igama elivela kwisiNgesi: THF; i-oxolane; iButane, i-alpha, i-delta-oxide; iCyclotetramethylene oxide; iDiethylene oxide; iFuran, i-tetrahydro-; iFuranidine; 1, 2, 3, 4 – i-tetrahydro – iiyure ezili-9 – i-fluoren – 9 – enye
Inombolo ye-CAS: 109-99-9
Inombolo ye-EINECS: 203-726-8
Ifomula yemolekyuli: C4H8O
Ubunzima beMolekyuli: 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
Ulwakhiwo lwemolekyuli: Tetrahydrofuran 109-99-9
Ubuninzi: 1.17 g/cm3
Iqondo lokunyibilika: 108.4 ℃
Iqondo lokubila: 343.2°C kwi-760 mmHg
Ifleshi: 150.7 ° C
Ukunyibilika kwamanzi: Kuxutywa
Uxinzelelo lomphunga: 7.15E-05mmHg kwi-25°C
Iimpawu zomzimba nezekhemikhali:
Ulwelo olucacileyo olungenambala, olunevumba le-ether.
Iqondo lokubila lama-67 ℃
Iqondo lokuqandisa – 108 ℃
Uxinano oluhambelanayo 0.985
Isalathisi sokuchasana kwe-refractive se-1.4050
Incopho yokutshaza – 17 ℃
Ukunyibilika kudibana namanzi, utywala, i-ketone, i-benzene, i-ester, i-ether, kunye ne-hydrocarbon.
Ukusetyenziswa kweMveliso:
Isetyenziswa njengesinyibilikisi kunye nezinto ezikrwada zokwenziwa kwezinto eziphilayo

I-Tetrahydrofuran, efinyeziweyo nge-THF, yi-heterocyclic organic compound. Ikwiqela le-ether kwaye yimveliso epheleleyo ye-hydrogenation ye-aromatic compound furan. I-Tetrahydrofuran yenye yezona polar ether zinamandla. Isetyenziswa njenge-medium polar solvent kwi-chemical reaction and extraction. Lulwelo oluguquguqukayo olungenambala kubushushu begumbi kwaye lunevumba elifanayo ne-diethyl ether. Inyibilika emanzini, kwi-ethanol, kwi-ether, kwi-acetone, kwi-Chemicalbook benzene nakwezinye izinyibilikisi ze-organic, ezaziwa ngokuba yi-"universal solvent". Ingaxutywa kancinci namanzi kubushushu begumbi, yiyo loo nto abanye abathengisi be-reagent abangekho mthethweni befumana inzuzo enkulu ngokuxuba i-tetrahydrofuran reagent namanzi. Ekubeni i-THF idla ngokwenza ii-peroxides kwindawo yokugcina, i-antioxidant BHT ngokubanzi yongezwa kwiimveliso zoshishino. Umxholo wamanzi ungaphantsi kwe-0.2%. Ineempawu zetyhefu ephantsi, iqondo lokubila eliphantsi kunye nokugeleza okuhle.
Okwangoku, abavelisi basekhaya abakhulu be-tetrahydrofuran baquka i-BASF China, i-Dalian Yizheng (DCJ), i-Shanxi Sanwei, i-Sinochem International, kunye ne-Petrochina Qianguo Refinery, njl.njl., kwaye ezinye izityalo ze-PBT nazo zivelisa inxalenye yeemveliso ezingasemva. Ii-index zentengiso ze-LyondellBasell Industries e-United States naseYurophu zezi: ubumsulwa 99.90% Chemicalbook, i-chroma (APHA) 10, ukufuma 0.03%, i-THF hydroperoxide 0.005%, ukungcola okupheleleyo 0.05%, kunye ne-oxidation inhibitor 0.025% ~ 0.035%. Kwishishini le-polyurethane, ukusetyenziswa okubaluleke kakhulu kukusetyenziswa njenge-monomer ye-polytetrahydrofuranediol (PTMEG), ekwayenye yezona zinto ziphambili ezisetyenziswa yi-THF.

Iindlela eziphambili zokusetyenziswa:
Injongo ephambili
1. Izinto ezisetyenziswayo xa kusenziwa i-polyurethane fiber tetrahydrofuran zinokuba yi-polycondensation (cationic initiated ring-opening repolysis) kwi-polytetramethylene ether diol (PTMEG), eyaziwa ngokuba yi-tetrahydrofuran homopolyether. I-PTMEG kunye ne-TOLuene diisocyanate (TDI) zenziwe ngerabha ekhethekileyo enokumelana kakuhle nokuguguleka, ukumelana neoyile, ukusebenza okuphantsi kobushushu kunye namandla aphezulu. I-block polyester elastomer yalungiswa nge-dimethyl terephthalate kunye ne-1, 4-butanediol. Iifayibha ze-polyurethane elastic (SSPANDEX, SPANDEX), irabha ekhethekileyo kunye nezinye izinto ezikhethekileyo zenziwe nge-2000 PTMEG kunye ne-p-methylene bis (4-phenyl) diisocyanate (MDI). Eyona ndlela ibalulekileyo yokusebenzisa i-THF kukuvelisa i-PTMEG. Ngokwezibalo ezirhabaxa, ngaphezulu kwe-80% ye-THF ehlabathini isetyenziselwa ukuvelisa i-PTMEG, ngelixa i-PTMEG isetyenziselwa ukuvelisa i-elastic spandex fiber.
2. I-Tetrahydrofuran sisinyibilikisi esilungileyo esisetyenziswa kakhulu, esifanelekileyo ngakumbi ekunyibilikiseni i-PVC, i-polyvinylidene chloride kunye ne-butaniline. Isetyenziswa kakhulu njengesinyibilikisi sokufaka umphezulu, isigqubuthelo sokulwa nokugqwala, i-inki yokuprinta, i-magnetic tape kunye nesigqubuthelo sefilimu. Isigqubuthelo se-magnetic tape, isigqubuthelo somphezulu we-PVC, ISIQUBUTHELO SOKUCOCA i-PVC reactor, ukususwa kwefilimu ye-PVC, isigqubuthelo se-cellophane, i-inki yokuprinta yeplastiki, isigqubuthelo se-thermoplastic polyurethane, isigqubuthelo se-adhesives, sisetyenziswa kakhulu kwizigqubuthelo zomphezulu, izigqubuthelo zokukhusela, ii-inki, izihluzi kunye nee-arhente zokugqiba umphezulu wesikhumba esenziweyo.
3. Isetyenziswa njengezinto eziluhlaza zokwenziwa kwezinto eziphilayo ezifana namayeza okuvelisa i-tetrahydrothiophene, i-1.4-dichloroethane, i-2.3-dichlorotetrahydrofuran, i-pentolactone, i-butyllactone kunye ne-pyrrolidone, njl. Kwishishini lamayeza, isetyenziselwa ukwenziwa kwe-kepidine, i-rifamycin, i-progesterone kunye nezinye iziyobisi zehomoni. I-Tetrahydrothiophenol, eveliswa ngonyango lwe-hydrogen sulfide, ingasetyenziswa njenge-aroma agent (i-identification additive) kwi-fuel gas kwaye ikwayi-solvent ephambili kwishishini lamayeza.
4. Ezinye iindlela zokusebenzisa izinyibilikisi ze-chromatographic (i-gel permeation chromatography), ezisetyenziselwa incasa yegesi yendalo, i-acetylene extraction solvent, izinto ze-polymer, ezifana ne-light stabilizer. Ngokusetyenziswa ngokubanzi kwe-tetrahydrofuran, ingakumbi ukukhula ngokukhawuleza kweshishini le-spandex eTshayina kwiminyaka yakutshanje, imfuno ye-PTMEG eTshayina iyanda imihla ngemihla, kwaye imfuno ye-tetrahydrofuran ikwabonisa indlela yokukhula ngokukhawuleza.