Tetrahydrofuran
Igama lesiNgesi: THF; uxolane; Butane, alpha,delta-oxide; Cyclotetramethylene oxide; I-Diethylene oxide; Furan, tetrahydro-; iFuranidine; 1, 2, 3, 4 – tetrahydro – 9 h – fluoren – 9 – enye
Inombolo yeCAS. : 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
Isakhiwo semolekyuli: Tetrahydrofuran 109-99-9
Ubuninzi: 1.17 g/cm3
Indawo yokunyibilikisa: 108.4 ℃
Indawo yokubilisa: 343.2 ° C kwi-760 mmHg
Ukukhanya: 150.7 ° C
Ukunyibilika kwamanzi: Iyaxutywa
Uxinzelelo lomphunga: 7.15E-05mmHg ku-25°C
Iimpawu zomzimba kunye neekhemikhali:
Ulwelo olubonakalayo olungenambala olungenambala, lunevumba le-ether.
Iqondo lokubila lika 67 ℃
Indawo yomkhenkce – 108 ℃
Uxinzelelo olunxulumeneyo 0.985
Isalathisi se-refractive se-1.4050
Indawo edanyazayo – 17 ℃
Ukunyibilika kuyadityaniswa namanzi, utywala, iketone, benzene, ester, ether, hydrocarbon.
Ukusetyenziswa kweMveliso:
Isetyenziswa njenge-solvent kunye nemathiriyeli ekrwada kwi-organic synthesis

I-Tetrahydrofuran, i-THF efinyeziweyo, yi-heterocyclic organic compound. Iyeyeqela le-ether kwaye iyimveliso epheleleyo ye-hydrogenation ye-furan yekhompawundi enuka kamnandi. I-Tetrahydrofuran yenye yezona zinamandla kwi-ether yepolar. Isetyenziswe njenge-solvent ye-polar ephakathi kwi-chemical reaction kunye ne-extraction. Lulwelo oluguquguqukayo olungenambala kubushushu begumbi kwaye linevumba elifana nele-diethyl ether. Inyibilika emanzini, i-ethanol, i-ether, i-acetone, i-Chemicalbook benzene kunye nezinye izinyibilikisi eziphilayo, ezaziwa ngokuba “sisinyibilikisi sendalo yonke”. Inokuthi ixutywe ngokuyinxenye ngamanzi kwindawo yobushushu begumbi, yiyo loo nto abanye abathengisi be-reagent abangekho mthethweni benza inzuzo enkulu ngokuxuba i-tetrahydrofuran reagent namanzi. Ekubeni i-THF ithanda ukwenza iiperoxides kwindawo yokugcina, i-antioxidant BHT yongezwa ngokubanzi kwiimveliso zoshishino. Isiqulatho samanzi singaphantsi kwe-0.2%. Ineempawu zobutyhefu obuphantsi, indawo ebilayo ephantsi kunye nolwelo oluhle.
Okwangoku, abavelisi abakhulu basekhaya be-tetrahydrofuran baquka i-BASF China, i-Dalian Yizheng (DCJ), i-Shanxi Sanwei, i-Sinochem International, kunye ne-Petrochina Qianguo Refinery, njl., kunye nezinye izityalo ze-PBT zivelisa inxalenye yemveliso. Izalathi zentengiso zeLyondellBasell Industries eUnited States naseYurophu zezi: ubumsulwa 99.90%Chemicalbook, chroma (APHA) 10, ukufuma 0.03%, THF hydroperoxide 0.005%, ukungcola okupheleleyo 0.05%, kunye ne-oxidation inhibitor 5% ~ 0.025% ~ 0.025%. Kwishishini le-polyurethane, ukusetyenziswa okubaluleke kakhulu njengento ye-monomer ye-polytetrahydrofuranediol (PTMEG), nayo enye yezona zinto zisetyenziswayo kwi-THF.

Eyona nto isetyenziswayo:
Injongo ephambili
1. I-raw material ye-synthesis ye-polyurethane fiber tetrahydrofuran ingaba yi-polycondensation (i-cationic initiated ring-opening repolymerization) kwi-polytetramethylene ether diol (PTMEG), eyaziwa ngokuba yi-tetrahydrofuran homopolyether. I-PTMEG kunye ne-TOLuene diisocyanate (TDI) zenziwe kwi-rubber ekhethekileyo kunye nokumelana nokunxiba kakuhle, ukumelana neoli, ukusebenza kweqondo lokushisa eliphantsi kunye namandla aphezulu. I-Block polyether polyester elastomer yalungiswa nge-dimethyl terephthalate kunye ne-1, i-4-butanediol. I-polyurethane elastic fibers (i-SPANDEX, i-SPANDEX), i-rubber ekhethekileyo kunye nezinye iinjongo ezikhethekileyo zokugquma zenziwe kwi-2000 PTMEG kunye ne-p-methylene bis (4-phenyl) diisocyanate (MDI). Olona setyenziso lubalulekileyo lweTHF kukuvelisa iPTMEG. Ngokwezibalo ezirhabaxa, ngaphezu kwe-80% ye-THF emhlabeni isetyenziselwa ukuvelisa i-PTMEG, ngelixa i-PTMEG isetyenziselwa ukuvelisa i-elastic spandex fiber.
2. I-Tetrahydrofuran i-solvent efanelekileyo esetyenziswa ngokuqhelekileyo, ngokukodwa ifanelekile ukuchithwa kwe-PVC, i-polyvinylidene chloride kunye ne-butaniline. Isetyenziswa ngokubanzi njengesinyibilikisi sokwambathisa umphezulu, i-anti-corrosion coating, inki yokuprinta, iteyiphu yemagnethi kunye nefilimu yokwaleka. Iteyiphu yokwaleka ngeMagnetic, iPVC yokwambathisa umphezulu, UKUCOCA i-PVC reactor, ukususwa kwefilimu yePVC, ukutyabeka kwe-cellophane, inki yoshicilelo lweplastiki, i-thermoplastic polyurethane coating, i-solvent for adhesives, isetyenziswa ngokubanzi kwi-coatings yomphezulu, iingubo ezikhuselayo, i-inki, i-extractants kunye ne-synthetic leagent yokugqiba umphezulu wesikhumba. .
3. Isetyenziswe njengezinto ezibonakalayo kwi-organic synthesis efana ne-pharmaceuticals yokuvelisa i-tetrahydrothiophene, i-1.4-dichloroethane, i-2.3-dichlorotetrahydrofuran, i-pentolactone, i-butyllactone kunye ne-pyrrolidone, njl. progesterone kunye nezinye iziyobisi zehomoni. I-Tetrahydrothiophenol, eveliswa ngonyango lwe-hydrogen sulfide, ingasetyenziswa njenge-agent yevumba (i-identification additive) kwi-fuel gas kwaye ikwayi-solvent ephambili kwishishini lamayeza.
4. Okunye ukusetyenziswa kwe-chromatographic solvents (i-gel permeation chromatography), esetyenziselwa ukunambitheka kwegesi yendalo, i-acetylene extraction solvent, izinto ze-polymer, ezifana ne-stabilizer yokukhanya. Ngokusetyenziswa okubanzi kwe-tetrahydrofuran, ngakumbi ukukhula ngokukhawuleza koshishino lwe-spandex e-China kwiminyaka yakutshanje, imfuno ye-PTMEG e-China iyanda imihla ngemihla, kwaye imfuno ye-tetrahydrofuran ibonisa ukukhula ngokukhawuleza.