Tetrahydrofuran
Faa-Peretania igoa: THF; oxolane; Butane, alpha, delta-oxide; Cyclotetramethylene oxide; Diethylene oxide; Furan, tetrahydro-; Furanidine; 1, 2, 3, 4 – tetrahydro – 9 h – fluoren – 9 – tasi
CAS nu. : 109-99-9
EINECS nu. : 203-726-8
fua mole: C4H8O
mamafa mole: 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
fausaga mole: Tetrahydrofuran 109-99-9
Malosi: 1.17 g/cm3
Liu liusuavai: 108.4 ℃
Mea fa'apuna: 343.2°C ile 760 mmHg
Emo: 150.7 ° C
Suavai soluble: Miscible
Ausa mamafa: 7.15E-05mmHg ile 25°C
Amioga fa'aletino ma kemisi:
Uiga e leai se lanu manino vai, e manogi ether.
O le vevela o le 67 ℃
Fa'a'aisa – 108 ℃
Tulaga va'aiga 0.985
Ole fa'asino ole 1.4050
Tau moli – 17 ℃
Solubility e fa'afefiloi ma vai, ava malosi, ketone, benzene, ester, eter, hydrocarbon.
Fa'aaogāga o Mea:
Fa'aaogaina e fai ma solvent ma mea mata mo le fa'aogaina o meaola

Tetrahydrofuran, fa'apu'upu'u THF, o le heterocyclic organic compound. E a'afia i le vaega o le ether ma o le gaosiga atoa o le hydrogenation o le furan compound manogi. Tetrahydrofuran o se tasi o ether polar sili ona malosi. E fa'aaogaina e fai ma so'o fa'alaua'itele polar i le fa'agaoioiga fa'ama'i ma le fa'aaogaina. Ose vai e le lanu felanulanua'i ile vevela ole potu ma e tutusa lona manogi ile diethyl eter. Solu i le vai, ethanol, ether, acetone, Chemicalbook benzene ma isi solvents organic, ua taʻua o le "solvent lautele". E mafai ona fefiloi se vaega o le vai i le vevela o le potu, ma o le mafuaaga lea e tele ai tupe maua a nisi tagata fa'atau oloa fa'aletulafono e ala i le fa'afefiloi o le tetrahydrofuran reagent ma le vai. Talu ai ona o le THF e foliga mai e fausia ni peroxide i le teuina, o le antioxidant BHT e masani ona faʻaopoopo i oloa gaosi oloa. Ole mea ole vai e itiiti ifo ile 0.2%. E i ai uiga o le maualalo o le oona, maualalo le vevela ma lelei le suavai.
I le taimi nei, o le tele o fale gaosi oloa o le tetrahydrofuran e aofia ai le BASF China, Dalian Yizheng (DCJ), Shanxi Sanwei, Sinochem International, ma Petrochina Qianguo Refinery, ma isi, ma nisi ISI PBT laau e maua ai foi se vaega o oloa. LyondellBasell Industries 'fa'ailoga fa'atau i le Iunaite Setete ma Europa o: mama 99.90% Chemicalbook, chroma (APHA) 10, susu 0.03%, THF hydroperoxide 0.005%, atoa le mama 0.05%, ma oxidation inhibitor 0.025% ~ 0%. I le polyurethane alamanuia, o le faʻaaogaina sili ona taua o se mea monomer mo polytetrahydrofuranediol (PTMEG), o se tasi foi o faʻaoga autu o le THF.

Fa'aoga autu:
O le faamoemoega autu
1. O mea mata o le tuufaatasia o le polyurethane fiber tetrahydrofuran e mafai ona polycondensation (cationic amataina mama-tatala repolymerization) i polytetramethylene eter diol (PTMEG), ua lauiloa foi o le tetrahydrofuran homopolyether. O le PTMEG ma le TOLuene diisocyanate (TDI) ua faia i le pa'u fa'apitoa ma le lelei o le ofuina o le ofuina, o le suauʻu faʻafefe, le maualalo o le vevela ma le malosi maualuga. Block polyether polyester elastomer na saunia i le dimethyl terephthalate ma le 1, 4-butanediol. Polyurethane elastic fibers (SPANDEX, SPANDEX), paʻu faʻapitoa ma nisi faʻamoemoega faʻapitoa faʻapitoa e faia mai le 2000 PTMEG ma le p-methylene bis (4-phenyl) diisocyanate (MDI). Ole fa'aoga sili ona taua ole THF ole gaosia ole PTMEG. E tusa ai ma fuainumera faʻamaumauga, e sili atu i le 80% o le THF i le lalolagi o loʻo faʻaaogaina e gaosia ai le PTMEG, ae o le PTMEG e masani ona faʻaaogaina e gaosia ai fiber spandex elastic.
2. Tetrahydrofuran o se solvent lelei e masani ona faʻaaogaina, aemaise lava mo le faʻamavaeina o PVC, polyvinylidene chloride ma butaniline. E faʻaaogaina lautele e avea o se solvent mo le faʻapipiʻiina o luga, faʻapipiʻi faʻamaʻi, vaitusi lolomi, faʻamau maneta ma faʻapipiʻi ata. Fa'apipi'i fa'amau maneta, fa'apipi'iina o le PVC, fa'amamāina o le PVC reactor, aveeseina o le PVC ata, fa'aulu cellophane, palasitika lomitusi vaitusi, thermoplastic polyurethane coating, solvent mo fa'apipi'i, fa'aaogaina lautele i luga o fa'alavalava, ufiufi puipui, inks, extractants ma pa'u pa'u fa'auma fa'auma mea .
3. Faʻaaogaina e pei o mea mataʻutia mo le faʻaogaina o meaola e pei o vailaʻau mo le gaosiga o le tetrahydrothiophene, 1.4-dichloroethane, 2.3-dichlorotetrahydrofuran, pentolactone, butyllactone ma pyrrolidone, ma isi. progesterone ma nisi o fualaau oona. Tetrahydrothiophenol, lea e gaosia e le hydrogen sulfide togafitiga, e mafai ona faʻaaogaina e fai ma sui manogi (faʻaopoopo faʻamatalaga) i le kesi suauu ma o le solvent autu foi i fale gaosi oloa.
4. O isi fa'aoga o vaifofo chromatographic (gel permeation chromatography), fa'aaogaina mo le tofo o le kasa fa'alenatura, solvent extraction acetylene, mea polymer, e pei o le fa'amautuina o le malamalama. Faʻatasi ai ma le lautele o le faʻaaogaina o le tetrahydrofuran, aemaise lava le televave o le tuputupu aʻe o pisinisi spandex i Saina i tausaga talu ai nei, o le manaoga mo PTMEG i Saina o loʻo faʻateleina i lea aso ma lea aso, ma o le manaʻoga mo tetrahydrofuran o loʻo faʻaalia ai foi le televave o le tuputupu aʻe.