I-Tetrahydrofuran |109-99-9
Idatha Yendawo Yomkhiqizo:
| Igama Lomkhiqizo | I-Tetrahydrofuran |
| Izakhiwo | Uketshezi oluguquguqukayo olungenambala olufana ne-etheriphunga. |
| I-Melting Point (°C) | -108.5 |
| Indawo yokubilisa(°C) | 66 |
| Ukuminyana okuhlobene (Amanzi=1) | 0.89 |
| Ukuminyana komhwamuko okuhlobene (umoya=1) | 2.5 |
| Umfutho womhwamuko ogcwele (kPa) | 19.3 (20°C) |
| Ukushisa komlilo (kJ/mol) | -2515.2 |
| Izinga lokushisa elibalulekile (°C) | 268 |
| Ingcindezi ebucayi (I-MPa) | 5.19 |
| I-Octanol/i-partition coefficient yamanzi | 0.46 |
| Iphoyinti elikhanyayo (°C) | -14 |
| Izinga lokushisa lokushisa (°C) | 321 |
| Umkhawulo wokuqhuma okuphezulu (%) | 11.8 |
| Umkhawulo wokuqhuma ophansi (%) | 1.8 |
| Ukuncibilika | Incibilika kancane emanzini, incibilika ku-ethanol, i-ether. |
Izakhiwo Zomkhiqizo Nozinzo:
1.Uketshezi olukhanyayo olungenambala olunephunga elifana ne-ether.Hlanganisa namanzi.Ingxube ye-azeotropic ngamanzi ingancibilikisa i-cellulose acetate ne-caffeine alkaloids, futhi ukusebenza kokuncibilika kungcono kunokwe-tetrahydrofuran kuphela.Izinyibilikisi ezivamile ezifana ne-ethanol, i-ether, ama-aliphatic hydrocarbon, ama-hydrocarbon anephunga elimnandi, ama-hydrocarbon ane-chlorinated, njll. zingancibilika kahle ku-tetrahydrofuran.Kulula ukuhlanganisa ne-oxidation emoyeni ukukhiqiza i-peroxide eqhumayo.Ayikonakali ezinsimbi, futhi iguguleka kumapulasitiki amaningi namarabha.Ngenxa yephuzu elibilayo, i-flash point iphansi, kulula ukubamba umlilo ekamelweni lokushisa.Umoya-mpilo osemoyeni ngesikhathi sokugcinwa ungakhiqiza i-peroxide eqhumayo nge-tetrahydrofuran.Ama-peroxides maningi amathuba okuthi akheke lapho kukhona ukukhanya kanye nezimo ezingenamanzi.Ngakho-ke, u-0.05% ~ 1% we-hydroquinone, i-resorcinol, i-p-cresol noma i-ferrous salts nezinye izinto ezinciphisayo kuvame ukungezwa njengama-antioxidants ukuvimbela ukukhiqizwa kwama-peroxides.Lo mkhiqizo unobuthi obuphansi, opharetha kufanele agqoke amagiya okuzivikela.
2.Ukuzinza: Ukuzinza
3.Izinto ezivinjelwe: Ama-Acids, i-alkali, ama-oxidising aqinile, umoya-mpilo
6.Imibandela yokugwema ukuchayeka: Ukukhanya, umoya
7.Ingozi ye-Polymerization: I-Polymerization
Isicelo somkhiqizo:
I-1.Isetshenziswa kakhulu ngenxa yokungena kahle kwayo kanye nokuhlukana kwayo ebusweni nangaphakathi kwama-resin.Isetshenziswa njenge-solvent ekuphenduleni kwefomethi, ukusabela kwe-polymerisation, ukusabela kokuncishiswa kwe-LiAlH4 nokusabela kwe-esterification.Ukuqedwa kwe-polyvinyl chloride, i-polyvinylidene chloride kanye nama-copolymers awo kubangela isisombululo esiphansi se-viscosity, esivame ukusetshenziselwa ukwakhiwa kwezingubo ezingaphezulu, okokuvikela, okunamathelayo namafilimu.Ibuye isetshenziswe kuyinki, i-stripper kapende, i-extractant, i-surface treatment yesikhumba sokwenziwa.Lo mkhiqizo uyi-self-polymerization kanye ne-copolymerization, ungakha i-polyether yohlobo lwe-polyurethane elastomer.Lo mkhiqizo uyinto ebalulekile yamakhemikhali eluhlaza, ingalungiswa i-butadiene, inayiloni, i-polybutylene glycol ether, i-γ-butyrolactone, i-polyvinylpyrrolidone, i-tetrahydrothiophene njalonjalo.Lo mkhiqizo ungasetshenziswa futhi njengento ephakathi kokuhlanganisa izinto eziphilayo njengezidakamizwa.
I-2.I-Tetrahydrofuran ingancibilikisa zonke izinhlanganisela eziphilayo ngaphandle kwe-polyethylene, i-polypropylene kanye ne-fluorine resins, ikakhulukazi i-polyvinyl chloride, i-polyvinylidene chloride ne-butylaniline inokunyibilika okuhle, isetshenziswa kabanzi njenge-solvent esebenzayo.
I-3.Njenge-solvent evamile, i-tetrahydrofuran ivame ukusetshenziswa ekugqokeni okungaphezulu, izigqoko zokuzivikela, iziyinki, ama-extractants kanye nokwelashwa kwendawo yesikhumba sokwenziwa.
I-4.I-Tetrahydrofuran iyinto ebalulekile yokukhiqiza i-polytetramethylene ether glycol (PTMEEG) kanye ne-solvent enkulu embonini yezemithi.Isetshenziswa njenge-solvent yama-resin emvelo nawokwenziwa (ikakhulukazi ama-vinyl resins), nawo asetshenziswa ekukhiqizeni i-butadiene, i-adiponitrile, i-adip.i-onitrilei-adipic acid,hexanediamine nokunye.
I-5.Isetshenziswa njenge-solvent, i-chemical synthesis intermediate, i-reagent yokuhlaziya.
Amanothi Okugcina Umkhiqizo:
1.Gcina endaweni epholile, nengena umoya.
2. Gcina kude nomlilo kanye nomthombo wokushisa.
3. Izinga lokushisa le-warehouse akufanele lidlule ku-29°C.
4.Gcina isitsha sivaliwe, akuhlangene nomoya.
5.Kufanele igcinwe ngokuhlukana nama-oxidizing agents, ama-acids,ama-alkali, njll.futhi akufanele neze ixutshwe.
6.Adopt izibani ezingaqhumi kanye nezindawo zokungenisa umoya.
7.Vimbela ukusetshenziswa kwemishini namathuluzi alula ukwenza izinhlansi.
I-8.Indawo yokugcina kufanele ifakwe imishini yokwelapha izimo eziphuthumayo ezivuzayo kanye nezinto zokukhosela ezifanele.
