Tetrahydrofuran
Lebitso le leng la Senyesemane: THF; oxolane; Butane, alpha,delta-oxide; Cyclotetramethylene oxide; Diethylene oxide; Furan, tetrahydro-; Furanidine; 1, 2, 3, 4 – tetrahydro – 9 h – fluoren – 9 – e le nngwe
Nomoro ea CAS: 109-99-9
Nomoro ea EINECS: 203-726-8
Foromo ea limolek'hule: C4H8O
Boima ba limolek'hule: 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
Sebopeho sa limolek'hule: Tetrahydrofuran 109-99-9
Botenya: 1.17 g/cm3
Sebaka sa ho qhibiliha: 108.4 ℃
Boemo ba ho belisa: 343.2°C ho 760 mmHg
Leseli: 150.7 ° C
Ho qhibiliha ha metsi: Hoa tsoakana
Khatello ea mouoane: 7.15E-05mmHg ho 25°C
Thepa ea 'mele le ea lik'hemik'hale:
Mokelikeli o bonaletsang o se nang 'mala oa tlhaku, o na le monko oa ether.
Ntlha e belang ea 67 ℃
Sebaka sa ho hoama – 108 ℃
Sekhahla se lekanyelitsoeng 0.985
Tekanyo ea refractive ea 1.4050
Sebaka sa ho bonesa - 17 ℃
Ho qhibiliha ho ka kopanngoa le metsi, joala, ketone, benzene, ester, ether, hydrocarbon.
Tšebeliso ea Sehlahisoa:
E sebelisoa e le solvent le thepa e tala bakeng sa tlhahiso ea lintho tse phelang

Tetrahydrofuran, e khutsufalitsoeng ka THF, ke motsoako oa lintho tse phelang o sa fetoheng. Ke oa sehlopha sa ether 'me ke sehlahisoa se felletseng sa hydrogenation sa furan ea motsoako o nkhang hamonate. Tetrahydrofuran ke e 'ngoe ea li-ether tse matla ka ho fetisisa tsa polar. E sebelisoa e le tharollo ea polar e mahareng karabelong ea lik'hemik'hale le ho ntšoa ha eona. Ke mokelikeli o feto-fetohang o se nang 'mala mochesong oa kamore 'me o na le monko o tšoanang le oa diethyl ether. E qhibiliha ka metsing, ethanol, ether, acetone, Chemicalbook benzene le li-solvent tse ling tsa tlhaho, tse tsejoang e le "solvent ea bokahohle". E ka kopanngoa hanyane le metsi mochesong oa kamore, ke ka lebaka leo barekisi ba bang ba li-reagent tse seng molaong ba fumanang phaello e kholo ka ho kopanya reagent ea tetrahydrofuran le metsi. Kaha THF e atisa ho etsa li-peroxide polokelong, antioxidant BHT hangata e eketsoa lihlahisoa tsa indasteri. Bongata ba metsi bo ka tlase ho 0.2%. E na le litšobotsi tsa chefo e tlase, ntlha e tlase ea ho belisa le ho phalla hantle.
Hona jwale, bahlahisi ba ka sehloohong ba tetrahydrofuran malapeng ba kenyeletsa BASF China, Dalian Yizheng (DCJ), Shanxi Sanwei, Sinochem International, le Petrochina Qianguo Refinery, jj., mme dimela tse ding tsa PBT le tsona di hlahisa karolo ya dihlahiswa tse setseng. Dintlha tsa thekiso tsa LyondellBasell Industries United States le Europe ke: bohloeki 99.90% Chemicalbook, chroma (APHA) 10, mongobo 0.03%, THF hydroperoxide 0.005%, ho se hlweke ho felletseng 0.05%, le oxidation inhibitor 0.025% ~ 0.035%. Indastering ya polyurethane, tshebediso ya bohlokwa ka ho fetisisa ke thepa ya monomer bakeng sa polytetrahydrofuranediol (PTMEG), e leng e nngwe ya tshebediso e ka sehloohong ya THF.

Tšebeliso e ka sehloohong:
Morero o ka sehloohong
1. Thepa e tala ea ho kopanya polyurethane fiber tetrahydrofuran e ka ba polycondensation (cationic initiated ring-opening repolymerization) ho polytetramethylene ether diol (PTMEG), e tsejoang hape e le tetrahydrofuran homopolyether. PTMEG le TOLuene diisocyanate (TDI) li entsoe ka rabara e khethehileng e nang le khanyetso e ntle ea ho tsofala, khanyetso ea oli, ts'ebetso e tlase ea mocheso le matla a phahameng. Block polyester elastomer e ile ea lokisoa ka dimethyl terephthalate le 1, 4-butanediol. Likhoele tsa elastic tsa polyurethane (SSPANDEX, SPANDEX), rabara e khethehileng le liaparo tse ling tse khethehileng li entsoe ka 2000 PTMEG le p-methylene bis (4-phenyl) diisocyanate (MDI). Tšebeliso ea bohlokoa ka ho fetisisa ea THF ke ho hlahisa PTMEG. Ho ea ka lipalo-palo tse akaretsang, ho feta 80% ea THF lefatšeng e sebelisetsoa ho hlahisa PTMEG, ha PTMEG e sebelisoa haholo ho hlahisa elastic spandex fiber.
2. Tetrahydrofuran ke solvent e ntle e sebediswang haholo, haholoholo e loketse ho qhala PVC, polyvinylidene chloride le butaniline. E sebediswa haholo e le solvent bakeng sa ho kwahela bokahodimo, ho kwahela ka ho thibela mafome, enke ya khatiso, theipi ya makenete le ho kwahela ka filimi. Ho kwahela ka theipi ya makenete, ho kwahela bokahodimo ba PVC, HO HLATSWA ha reaktara ya PVC, ho tloswa ha filimi ya PVC, ho kwahela ka cellophane, enke ya khatiso ya polasetiki, ho kwahela ka polyurethane ya thermoplastic, solvent bakeng sa dikhomaretsi, e sebediswa haholo ho kwahela bokahodimo, ho kwahela ka tshireletso, enke, di-extractants le di-agent tsa ho qetela bokahodimo ba letlalo la maiketsetso.
3. E sebediswa e le thepa e tala bakeng sa tlhahiso ya dintho tse phelang jwalo ka meriana bakeng sa tlhahiso ya tetrahydrothiophene, 1.4-dichloroethane, 2.3-dichlorotetrahydrofuran, pentolactone, butyllactone le pyrrolidone, jj. Indastering ya meriana, e sebediswa bakeng sa tlhahiso ya kepidine, rifamycin, progesterone le meriana e meng ya dihormone. Tetrahydrothiophenol, e hlahiswang ka kalafo ya hydrogen sulfide, e ka sebediswa e le moemedi wa monko (eketsang boitsebiso) kgaseng ya mafura mme hape ke tharollo e ka sehloohong indastering ya meriana.
4. Tšebeliso e 'ngoe ea li-solvent tsa chromatographic (gel permeation chromatography), tse sebelisoang bakeng sa tatso ea khase ea tlhaho, solvent ea acetylene extraction, thepa ea polymer, joalo ka stabilizer ea leseli. Ka ts'ebeliso e pharaletseng ea tetrahydrofuran, haholo-holo kholo e potlakileng ea indasteri ea spandex Chaena lilemong tsa morao tjena, tlhoko ea PTMEG Chaena e ntse e eketseha letsatsi le letsatsi, 'me tlhoko ea tetrahydrofuran le eona e bontša mokhoa oa kholo e potlakileng.