Tetrahydrofuran
Igoa fa'aperetania: THF; oxolane; Butane, alpha,delta-oxide; Cyclotetramethylene oxide; Diethylene oxide; Furan, tetrahydro-; Furanidine; 1, 2, 3, 4 – tetrahydro – 9 h – fluoren – 9 – tasi
Numera o le CAS: 109-99-9
Numera o le EINECS: 203-726-8
Fua fa'atatau molekiula: C4H8O
Mamafa molekiula: 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 molekiula: Tetrahydrofuran 109-99-9
Mafiafia: 1.17 g/cm3
Tulaga e liusuavai ai: 108.4 ℃
Pupula: 343.2°C i le 760 mmHg
Moli: 150.7 ° C
Fa'asolo i le vai: Fa'asolo i le vai
Mamafa o le ausa: 7.15E-05mmHg i le 25°C
Uiga faaletino ma vailaʻau:
O uiga o le vai manino e leai se lanu, e iai le manogi eter.
O le vevela pupuna o le 67 ℃
Tulaga aisa – 108 ℃
Mafiafia fa'atatau 0.985
O le fa'asinomaga fa'ata'ita'i o le 1.4050
Tulaga e fa'amumu ai le ea – 17 ℃
E mafai ona fa'afefiloi le solubility ma le vai, alcohol, ketone, benzene, ester, ether, hydrocarbon.
Fa'aaogāina o le Oloa:
Fa'aaogaina o se solvent ma mea mata mo le fa'aputuga fa'aola

O le Tetrahydrofuran, faapuupuuina le THF, o se heterocyclic organic compound. E aofia i le ether group ma o le hydrogenation atoa lea o le aromatic compound furan. O le Tetrahydrofuran o se tasi o polar ether sili ona malosi. E faʻaaogaina o se medium polar solvent i le faʻagasologa o vailaʻau ma le faʻamamāina. O se vai e leai se lanu e feliuliuaʻi i le vevela o le potu ma e tutusa lona manogi ma le diethyl ether. E solo i le vai, ethanol, ether, acetone, Chemicalbook benzene ma isi organic solvents, e taʻua o le "universal solvent". E mafai ona fefiloi faʻatasi ma le vai i le vevela o le potu, o le mafuaʻaga lea e maua ai e nisi o faʻatau oloa faʻasolitulafono ni tupe mama tele e ala i le faʻafefiloi o le tetrahydrofuran reagent ma le vai. Talu ai ona e masani ona fausia e le THF ni peroxides i le teuina, o le antioxidant BHT e masani ona faʻaopoopoina i oloa tau alamanuia. O le aofaʻi o le vai e itiiti ifo i le 0.2%. E iai ona uiga o le maualalo o le oona, maualalo le pupuna ma lelei le sologa lelei.
I le taimi nei, o kamupani tetele o loʻo gaosia le tetrahydrofuran i totonu o le atunuʻu e aofia ai le BASF China, Dalian Yizheng (DCJ), Shanxi Sanwei, Sinochem International, ma le Petrochina Qianguo Refinery, ma isi, ma o isi fale gaosi PBT e gaosia foʻi nisi o vaega o oloa faʻaopoopo. O faʻailoga faʻatau a LyondellBasell Industries i le Iunaite Setete ma Europa o: mama 99.90%Chemicalbook, chroma (APHA) 10, susu 0.03%, THF hydroperoxide 0.005%, aofaʻi o mea leaga 0.05%, ma le oxidation inhibitor 0.025% ~ 0.035%. I le alamanuia polyurethane, o le faʻaaogaina sili ona taua o le avea ma mea monomer mo le polytetrahydrofuranediol (PTMEG), o se tasi foʻi lea o faʻaaogaina autu o le THF.

Fa'aoga autū:
O le fa'amoemoega autū
1. O mea mata o le fa'aputuga o le alava polyurethane tetrahydrofuran e mafai ona fa'aogaina le polycondensation (cationic initiated ring-opening repolymerization) i le polytetramethylene ether diol (PTMEG), e ta'ua fo'i o le tetrahydrofuran homopolyether. O le PTMEG ma le TOLuene diisocyanate (TDI) e faia i ni pa'u fa'apitoa e tete'e lelei i le ofuina, tete'e i le suau'u, fa'atinoga maualalo i le vevela ma le malosi maualuga. O le poloka polyether polyester elastomer na saunia i le dimethyl terephthalate ma le 1, 4-butanediol. O alava elastic polyurethane (SPANDEX, SPANDEX), pa'u fa'apitoa ma nisi o ufiufi fa'apitoa e faia mai le 2000 PTMEG ma le p-methylene bis (4-phenyl) diisocyanate (MDI). O le fa'aoga sili ona taua o le THF o le gaosia lea o le PTMEG. E tusa ai ma fuainumera, e silia ma le 80% o le THF i le lalolagi e fa'aaogaina e gaosia ai le PTMEG, ae o le PTMEG e fa'aaogaina tele e gaosia ai le alava elastic spandex.
2. O le Tetrahydrofuran o se vailaʻau lelei e masani ona faʻaaogaina, aemaise lava mo le faʻataʻapeʻapeina o le PVC, polyvinylidene chloride ma le butaniline. E faʻaaogaina lautele o se vailaʻau mo le ufiufi o luga, ufiufi e teteʻe i le ele, vaitusi lolomi, lipine maneta ma le ufiufi o ata tifaga. Ufi lipine maneta, ufiufi o luga PVC, FAʻAMAMĀINA o le reactor PVC, aveese o ata tifaga PVC, ufiufi cellophane, vaitusi lolomi palasitika, ufiufi polyurethane thermoplastic, vailaʻau mo mea faʻapipiʻi, e faʻaaogaina lautele i ufiufi o luga, ufiufi puipui, vaitusi, mea e aveese ai mea ma mea e faʻauma ai luga o le paʻu faʻapitoa.
3. Fa'aaogaina o mea mata mo le fa'aputuga fa'alenatura e pei o vaila'au mo le gaosiga o le tetrahydrothiophene, 1.4-dichloroethane, 2.3-dichlorotetrahydrofuran, pentolactone, butyllactone ma pyrrolidone, ma isi. I le alamanuia o vaila'au, e fa'aaogaina mo le fa'aputuga o le kepidine, rifamycin, progesterone ma nisi vaila'au fa'alehormone. O le Tetrahydrothiophenol, lea e gaosia e ala i le togafitiga o le hydrogen sulfide, e mafai ona fa'aaogaina o se mea manogi (fa'aopoopoga fa'ailoa) i le kesi suau'u ma o le vaila'au autu fo'i lea i le alamanuia o vaila'au.
4. Isi fa'aaogāga o chromatographic solvents (gel permeation chromatography), e fa'aaogā mo le tofo o le kesi masani, acetylene extraction solvent, polymer materials, e pei o le light stabilizer. Fa'atasi ai ma le lautele o le fa'aaogāina o le tetrahydrofuran, aemaise lava le vave tuputupu a'e o le alamanuia spandex i Saina i tausaga talu ai nei, o le mana'oga mo le PTMEG i Saina o lo'o fa'atupula'ia i lea aso ma lea aso, ma o le mana'oga mo le tetrahydrofuran o lo'o fa'aalia ai fo'i se aga vave o le tuputupu a'e.