Tetrahydrofuran |109-99-9
Raraunga A-tinana Hua:
| Ingoa Hua | Tetrahydrofuran |
| Āhuatanga | Ko te wai karekau he tae me te ahua-eterekakara. |
| Ira Whakarewa(°C) | -108.5 |
| Ira Kohua(°C) | 66 |
| Kiato whanaunga (Wai=1) | 0.89 |
| Te kiato kohu (hau=1) | 2.5 |
| Te pehanga kohu kukū (kPa) | 19.3 (20°C) |
| Te wera o te ngingiha (kJ/mol) | -2515.2 |
| Te pāmahana tino nui (°C) | 268 |
| pēhanga arohaehae (MPa) | 5.19 |
| Te whakarea wehewehenga octanol/wai | 0.46 |
| Irahiko (°C) | -14 |
| Te pāmahana whakakā (°C) | 321 |
| Tepe pahū o runga (%) | 11.8 |
| Te rohe pahū iti (%) | 1.8 |
| Wairewa | He iti te wairewa ki te wai, te wairewa ki te waihano, te etera. |
Ngā Āhuatanga Hua me te Pūmautanga:
1.Ko te wai marama kore tae me te kakara rite-etere.Miscible ki te wai.Ka taea e te ranunga azeotropic me te wai te whakakore i te cellulose acetate me te kawheine alkaloids, a he pai ake te mahi whakakore i te tetrahydrofuran anake.Ka taea te rewa pai i roto i te tetrahydrofuran nga whakarewa waro whanui penei i te waiwaro, te etera, te hauwai aliphatic, te hauwai kakara, te hauwai maataa, me etahi atu.He ngawari te whakakotahi me te waikura i roto i te hau ki te whakaputa peroxide pahū.Kare e pirau ki nga konganuku, ka pirau ki te maha o nga kirihou me nga rapa.Na te mea e koropupu ana, he iti te tohu uira, he ngawari ki te hopu ahi i te pāmahana rūma.Ko te hāora i te rangi i te wa e rokiroki ana ka taea te whakaputa peroxide pahū ki te tetrahydrofuran.Ko nga peroxides ka kaha ake te hanga i te aroaro o te marama me te kore wai.Na reira, ko te 0.05% ~ 1% o te hydroquinone, te resorcinol, te p-cresol, te tote ferrous ranei me etahi atu matū whakaheke ka taapirihia hei antioxidants hei aukati i te whakatipuranga o te peroxides.He iti te paitini o tenei hua, me mau kakahu tiaki te kaiwhakahaere.
2.Stability: Stable
3.Nga matū kua whakakorehia: Waikawa, kawakore, nga mea whakahaora kaha, te hāora
6.Nga tikanga mo te karo i te waahi: Maama, hau
7. Te whakakoioratanga morearea: Polymerisation
Taupānga Hua:
1. Kei te whakamahia nuitia na te pai o te uruhanga me te diffusivity ki te mata me te roto o te kapia.Ka whakamahia hei whakarewa i roto i te tauhohenga whakatakotoranga, te tauhohenga polymerisation, te tauhohenga whakaahuru whakaheke LiAlH4 me te tauhohenga esterification.Ko te whakakorenga o te polyvinyl chloride, te polyvinylidene chloride me o ratou copolymers ka puta he otinga viscosity iti, e whakamahia nuitia ana i roto i te hanga o nga paninga mata, nga paninga tiaki, nga piripiri me nga kiriata.Ka whakamahia ano hoki i roto i te mangumangu, te peita peita, te tangohanga, te maimoatanga mata o te hiako horihori.Ko tenei hua he polymerisation whaiaro me te copolymerisation, ka taea te hanga polyether momo polyurethane elastomer.Ko tenei hua he rauemi matū nui, ka taea te whakarite butadiene, nylon, polybutylene glycol ether, γ-butyrolactone, polyvinylpyrrolidone, tetrahydrothiophene me etahi atu.Ka taea hoki te whakamahi i tenei hua hei takawaenga i roto i te whakahiato waro penei i nga raau taero.
Ka taea e 2.Tetrahydrofuran te whakakore i nga pūhui waro katoa i tua atu i te polyethylene, te polypropylene me te kapia fluorine, ina koa mo te polyvinyl chloride, te polyvinylidene chloride me te butylaniline he pai te whakarewatanga, ka whakamahia nuitia hei whakarewa urupare.
3.Ka rite ki te whakarewa noa, kua whakamahia te tetrahydrofuran i roto i nga whakakikorua o te mata, te whakamarumaru whakamarumaru, te waituhi, te tangohanga me te maimoatanga mata o te hiako horihori.
Ko te 4.Tetrahydrofuran he rauemi mata nui mo te hanga o te polytetramethylene ether glycol (PTMEEG) me te whakarewa nui mo te ahumahi rongoa.Ka whakamahia hei whakarewa mo nga kapia taiao me te waihanga (ina koa nga kapia vinyl), ka whakamahia ano ki te hanga i te butadiene, adiponitrile, adiponitrile, waikawa adipic,hexanediamine me etahi atu.
5.Whakamahia hei whakarewa, te whakahiato matū takawaenga, reagent tātari.
Nga Tuhipoka Rokiroki Hua:
1. Rokiroki i roto i te whare putunga hauhautanga, whai hau.
2.Kia matara atu i te ahi me te puna wera.
3.Ko te pāmahana whare putunga kaua e neke ake i te 29°C.
4. Kia hiritia te ipu, kaua e pa ki te hau.
5.Me penapena motuhake mai i nga kaikawe, waikawa,kawakore, etc.a kaua rawa e uru.
6.Adopt rama pahū-tohu me whakaurunga ventilation.
7. Ka aukati i te whakamahi i nga taputapu miihini me nga taputapu ngawari ki te whakaputa korakora.
8.Ko te waahi rokiroki me whakauru ki nga taputapu maimoatanga ohorere leakage me nga taonga whakaruru tika.
