Tetrahydrofuran | 109-99-9
Oloa Fa'amatalaga Fa'aletino:
| Igoa Oloa | Tetrahydrofuran |
| Meatotino | Suavai felanulanua'i felanulanua'i ma se eter-peimanogi. |
| Mea liusuavai(°C) | -108.5 |
| Fa'asao(°C) | 66 |
| Tulaga va'aiga (Suavai=1) | 0.89 |
| Su'ega ausa (ea=1) | 2.5 |
| Malosi ausa (kPa) | 19.3 (20°C) |
| Avela o le mu (kJ/mol) | -2515.2 |
| Mata'utia vevela (°C) | 268 |
| Omiga ogaoga (MPa) | 5.19 |
| Octanol/vaega vai | 0.46 |
| I'uga moli (°C) | -14 |
| vevela fa'amumu (°C) | 321 |
| Tapula'a papa i luga (%) | 11.8 |
| tapula'a pa'u maualalo (%) | 1.8 |
| Solubility | Solute laititi i le vai, soluble i le ethanol, eter. |
Meatotino o Meatotino ma Mausali:
1. Suavai manino e leai se lanu ma se manogi ether-pei. Faafefiloi ma le vai. O le faʻafefiloi o le azeotropic ma le vai e mafai ona faʻafefe ai le cellulose acetate ma caffeine alkaloids, ma o le faʻaogaina o le faʻatinoga e sili atu nai lo le tetrahydrofuran naʻo ia. Ole vaifofo masani masani e pei ole ethanol, ether, aliphatic hydrocarbons, aromatic hydrocarbons, chlorinated hydrocarbons, ma isi mea e mafai ona solo lelei ile tetrahydrofuran. E faigofie ona tuʻufaʻatasia ma le faʻamaʻiina i le ea e faʻatupu ai le peroxide pa. E le pala i u'amea, ma ero i le tele o palasitika ma pa'u. Ona o le vevela, e maualalo le moli, faigofie ona mu i le vevela o le potu. O le okesene i le ea i le taimi o le teuina e mafai ona faʻatupuina le paʻu peroxide ma le tetrahydrofuran. E sili atu ona maua le peroxide i le i ai o le malamalama ma le anhydrous tulaga. O le mea lea, 0.05% ~ 1% o le hydroquinone, resorcinol, p-cresol poʻo ferrous salts ma isi mea faʻaitiitia e masani ona faʻaopoopoina e avea ma antioxidants e faʻalavelave ai le gaosiga o peroxides. O lenei oloa e maualalo le oona, e tatau i le tagata fa'afoe ona ofuina ni mea e puipui ai.
2.Stability: Stable
3. Faʻasaina mea: Acid, alkali, malosi faʻamaʻi faʻamaʻi, okesene
6. Tulaga mo le aloese mai le faʻaalia: Malamalama, ea
7. Polimerization lamatiaga: Polymerization
Talosaga o Mea:
1.E faʻaaogaina lautele ona o lona faʻaogaina lelei ma le faʻasalalau i luga ma totonu o resins. E faʻaaogaina e fai ma solvent i le faʻasologa o le faʻasologa, polymerisation reaction, LiAlH4 faʻaitiitiga faʻafefete faʻafefe ma le esterification tali. O le faʻamavaeina o le polyvinyl chloride, polyvinylidene chloride ma o latou copolymers e maua ai se vaifofo maualalo maualalo, lea e masani ona faʻaaogaina i le gaosiga o faʻamalo o luga, ufiufi puipui, faʻapipiʻi ma ata tifaga. E fa'aaogaina fo'i i vaitusi, vali fa'alava, fa'aputu, fa'amama togafitiga o pa'u fai. O lenei oloa o le self-polymerization ma le copolymerization, e mafai ona gaosia polyether type polyurethane elastomer. O lenei oloa o se mea mataʻina vailaʻau taua, e mafai ona saunia butadiene, nylon, polybutylene glycol eter, γ-butyrolactone, polyvinylpyrrolidone, tetrahydrothiophene ma isi. O lenei oloa e mafai foi ona faʻaaogaina e avea o se mea faʻavauvau i le faʻaogaina o meaola e pei o vailaʻau.
2. Tetrahydrofuran e mafai ona faʻamavae uma mea faʻapitoa e ese mai i le polyethylene, polypropylene ma le fluorine resins, aemaise lava mo le polyvinyl chloride, polyvinylidene chloride ma le butylaniline e lelei le solubility, o loʻo faʻaaogaina lautele e avea o se solvent reactive.
3. I le avea ai o se solvent masani, o le tetrahydrofuran e masani ona faʻaaogaina i luga o faʻamalo, faʻapipiʻi puipui, vaitusi, mea faʻapipiʻi ma togafitiga o le paʻu faʻapitoa.
4.Tetrahydrofuran o se mea mataʻutia taua mo le gaosiga o le polytetramethylene ether glycol (PTMEEG) ma se soli tele mo le falemaʻi. Faʻaaogaina e avea o se solvent mo resini faʻanatura ma gaosia (aemaise vinyl resins), faʻaaogaina foi i le gaosiga o le butadiene, adiponitrile, adiponitrile, adipic acid,hexanediamine ma isi.
5. Faʻaaogaina e pei o le solvent, vailaʻau faʻapipiʻi vaeluaga, suʻesuʻega reagent.
Oloa Teuina Faamatalaga:
1. Teu i totonu ose faleteuoloa malulu, fa'aalili.
2. Taofi ese mai le afi ma le vevela.
3. E le tatau ona sili atu i le 29°C le vevela o le faleteuoloa.
4. Faamaufaailoga le koneteina, e le fesootai ma le ea.
5.E tatau ona teuina eseese mai oxidizing agents, acids,alkalis, ma isi.ma e le tatau ona fefiloi.
6.Adopt pa-faʻamaonia moli ma ea nofoaga.
7. Faʻasaina le faʻaogaina o masini masini ma mea faigaluega e faigofie ona gaosia ai aloiafi.
8.O le nofoaga e teu ai e tatau ona faʻapipiʻiina i le leakage faʻalavelave faʻafuaseʻi meafaigaluega togafitiga ma mea talafeagai malutaga.
