Tetrahydrofuran
Magaca Ingiriisiga: THF; oxolane; Butane, alpha, delta-oxide; Cyclotetramethylene oxide; Diethylene oxide; Furan, tetrahydro-; Furanidine; 1, 2, 3, 4 - tetrahydro - 9 saacadood - fluoren - 9 - hal
Lambarka CAS: 109-99-9
Lambarka EINECS: 203-726-8
Qaacidada molecular-ka: C4H8O
Miisaanka molecular: 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
Qaab-dhismeedka molecular: Tetrahydrofuran 109-99-9
Cufnaanta: 1.17 g/cm3
Barta dhalaalaysa: 108.4 ℃
Barta karkarinta: 343.2°C marka la gaaro 760 mmHg
Iftiin: 150.7 ° C
Biyaha milma: Kala firdhisan
Cadaadiska uumiga: 7.15E-05mmHg marka la gaaro 25°C
Sifooyinka jirka iyo kiimikada:
Dareere aan midab lahayn oo hufan, leh ur ether ah.
Barta karkaraya ee 67 ℃
Barta barafaynta - 108 ℃
Cufnaanta qaraabada ah 0.985
Tusmada Refractive ee 1.4050
Barta iftiiminta - 17 ℃
Milmida waxaa lagu milan karaa biyaha, khamriga, ketone, benzene, ester, ether, iyo hydrocarbon.
Isticmaalka Badeecada:
Waxaa loo isticmaalaa sidii dareere iyo walxo cayriin ah oo loogu talagalay isku-darka dabiiciga ah

Tetrahydrofuran, oo loo soo gaabiyo THF, waa isku-dhis dabiici ah oo heterocyclic ah. Waxay ka tirsan tahay kooxda ether waana wax soo saarka hydrogenation-ka oo dhammaystiran ee isku-darka udgoonka furan. Tetrahydrofuran waa mid ka mid ah ether-ka ugu xooggan ee polar-ka. Waxaa loo isticmaalaa sidii dareere dhexdhexaad ah oo polar ah oo ku jira falgalka kiimikada iyo soo saarista. Waa dareere aan midab lahayn oo isbeddela heerkulka qolka wuxuuna leeyahay ur la mid ah diethyl ether. Waxaa lagu milmaa biyaha, ethanol, ether, acetone, Chemicalbook benzene iyo dareere kale oo organic ah, oo loo yaqaan "dareeraha guud". Waxaa qayb ahaan lagu milan karaa biyaha heerkulka qolka, waana sababta qaar ka mid ah iibiyayaasha reagents-ka sharci darrada ah ay u sameeyaan faa'iido weyn iyagoo ku qasaya reagents-ka tetrahydrofuran biyaha. Maadaama THF ay u janjeerto inay samayso peroxides kaydinta, BHT-ga antioxidant-ka guud ahaan waxaa lagu daraa alaabada warshadaha. Waxyaabaha ku jira biyuhu waa wax ka yar 0.2%. Waxay leedahay astaamaha sunta yar, dhibic karkarin yar iyo dareere wanaagsan.
Waqtigan xaadirka ah, soosaarayaasha ugu waaweyn ee gudaha ee tetrahydrofuran waxaa ka mid ah BASF China, Dalian Yizheng (DCJ), Shanxi Sanwei, Sinochem International, iyo Petrochina Qianguo Refinery, iwm., qaar ka mid ah warshadaha kale ee PBT ayaa sidoo kale soo saara qayb ka mid ah wax soo saarka ka soo baxa. Tusmooyinka iibka ee LyondellBasell Industries ee Mareykanka iyo Yurub waa: daahirnimo 99.90%Chemicalbook, chroma (APHA) 10, qoyaan 0.03%, THF hydroperoxide 0.005%, wasakhda guud 0.05%, iyo oksaydhka joojiya 0.025% ~ 0.035%. Warshadaha polyurethane, isticmaalka ugu muhiimsan waa walxo monomer ah oo loogu talagalay polytetrahydrofuranediol (PTMEG), kaas oo sidoo kale ah mid ka mid ah isticmaalka ugu muhiimsan ee THF.

Isticmaalka ugu muhiimsan:
Ujeeddada ugu weyn
1. Maaddada cayriin ee isku-darka fiilada polyurethane tetrahydrofuran waxay noqon kartaa polycondensation (dib-u-habaynta cationic initiated ring-opening repolymerization) oo loo beddelo polytetramethylene ether diol (PTMEG), oo sidoo kale loo yaqaan tetrahydrofuran homopolyether. PTMEG iyo TOLuene diisocyanate (TDI) waxaa laga sameeyaa caag gaar ah oo leh iska caabin wanaagsan oo xirasho, iska caabin saliid, waxqabad heerkul hooseeya iyo xoog sare. Polyester polyether elastomer waxaa lagu diyaariyey dimethyl terephthalate iyo 1, 4-butanediol. Fiilooyinka laastikada Polyurethane (SPANDEX, SPANDEX), caag gaar ah iyo dahaadh gaar ah ayaa laga sameeyay 2000 PTMEG iyo p-methylene bis (4-phenyl) diisocyanate (MDI). Isticmaalka ugu muhiimsan ee THF waa in la soo saaro PTMEG. Sida laga soo xigtay tirakoobyada qallafsan, in ka badan 80% THF adduunka ayaa loo isticmaalaa in lagu soo saaro PTMEG, halka PTMEG inta badan loo isticmaalo in lagu soo saaro fiber spandex laastikada ah.
2. Tetrahydrofuran waa dareere wanaagsan oo si caadi ah loo isticmaalo, gaar ahaan ku habboon milmida PVC, polyvinylidene chloride iyo butaniline. Waxaa si weyn loogu isticmaalaa dareere ahaan dahaarka dusha sare, dahaarka ka hortagga daxalka, khad daabacan, cajalad birlab ah iyo dahaarka filimka. Dahaarka cajaladda birlabka ah, dahaarka dusha sare ee PVC, NADIIFINTA fal-galiyaha PVC, ka saarista filimka PVC, dahaarka cellophane, khad daabacan oo balaastig ah, dahaarka polyurethane ee thermoplastic, dareere loogu talagalay dhejisyada, si ballaaran loogu isticmaalo dahaarka dusha sare, dahaarka ilaalinta, khadyada, soosaarayaasha iyo wakiilada dhammaystirka dusha sare ee maqaarka ee macmal ah.
3. Waxaa loo isticmaalaa walxo ceeriin ah oo loogu talagalay isku-darka dabiiciga ah sida daawooyinka soo saarista tetrahydrothiophene, 1.4-dichloroethane, 2.3-dichlorotetrahydrofuran, pentolactone, butyllactone iyo pyrrolidone, iwm. Warshadaha dawooyinka, waxaa loo isticmaalaa isku-darka kepidine, rifamycin, progesterone iyo qaar ka mid ah daawooyinka hoormoonka. Tetrahydrothiophenol, oo lagu soo saaro daaweynta hydrogen sulfide, waxaa loo isticmaali karaa sidii wakiil ur ah (wax lagu daro aqoonsiga) ee gaaska shidaalka waana dareeraha ugu weyn ee warshadaha dawooyinka.
4. Adeegsiyada kale ee dareerayaasha koromografiga (jel permeation chromatography), oo loo isticmaalo dhadhanka gaaska dabiiciga ah, dareeraha soo saarista acetylene, walxaha polymer-ka, sida xasiliyaha iftiinka. Iyada oo la adeegsanayo tetrahydrofuran ballaaran, gaar ahaan kobaca degdegga ah ee warshadaha spandex ee Shiinaha sannadihii ugu dambeeyay, baahida loo qabo PTMEG ee Shiinaha ayaa sii kordheysa maalinba maalinta ka dambeysa, baahida loo qabo tetrahydrofuran sidoo kale waxay muujineysaa isbeddel kobac degdeg ah.