Tetrahydrofuran/CAS: 109-99-9

Tetrahydrofuran, mu magambo make THF, ni ikintu cy’umwimerere kivangwa n’amazi. Iri mu itsinda rya ether, ni ikintu cyuzuyemo hydrogene cya furan. Tetrahydrofuran ni imwe muri ether zikomeye cyane, ikoreshwa nk'ikintu cy’umusemburo wa polarity uciriritse mu gukora no gukuramo chemical. Ni amazi adafite ibara kandi ahindagurika mu bushyuhe bw'icyumba, afite impumuro nk'iya ether. Iyo ishongeshejwe mu bintu byinshi by’umwimerere nka amazi, ethanol, ether, acetone, na benzene, yitwa "umusemburo uhoraho". Iyo iri mu bushyuhe bw'icyumba, ivangwa igice n'amazi, kandi bamwe mu bacuruzi b’ibice by’umusemburo mu buryo butemewe n’amategeko babikoresha kugira ngo bunguke cyane bavanga reagent ya tetrahydrofuran n'amazi. Bitewe n'uko THF ikunda gukora peroxide mu gihe cyo kubika, ibicuruzwa by’inganda muri rusange byongera BHT irwanya antioxidant. Ingano y'ubushuhe ≤ 0.2%. Ifite imiterere y'uburozi buke, ubushyuhe buke, n'amazi meza.

Imikoreshereze

1. Uburyo bwo gukora spandex mu bikoresho fatizo tetrahydrofuran ubwayo ishobora kuba polycondensation (by cation yatangijwe ring-opening polymerization) muri polytetramethylene ether glycol (PTMEG), izwi kandi nka tetrahydrofuran homopolymerization ether. PTMEG na toluene diisocyanate (TDI) bikozwe mu buryo burwanya abrasion, burwanya amavuta, bukora neza mu bushyuhe buke, kandi bufite imbaraga nyinshi za rubber zidasanzwe; hamwe na dimethyl terephthalate na 1,4-butanediol bikozwe mu bikoresho bya polyester elastomer ya block polyester. Ubwinshi bwa molekile ya PTT ni 2.000. Ubwinshi bwa molekile ya PTMEG 2000 na p-methylene bis (4-phenyl) diisocyanate (MDI) ikozwe mu migozi ya polyurethane elastic (spandex, SPANDEX fibre), imigozi yihariye hamwe n'ibindi bikoresho byihariye byo kwambara. THF ni yo ikoreshwa cyane mu gukora PTMEG, nk'uko imibare ibivuga, THF irenga 80% by'imigozi ku isi ikoreshwa mu gukora PTMEG, na PTMEG, na PTMEG, na PTMEG, na PTMEG, na PTMEG, na PTMEG, na PTMEG, na PTMEG, na PTMEG, na PTMEG, na PTMEG, na PTMEG, na PTMEG, na PTMEG, na PTMEG, na PTMEG, na PTMEG, na PTMEG, na PTMEG. PTMEG, na PTMEG ikoreshwa cyane cyane mu gukora imigozi ya spandex elastic.
2. Umusemburo mwiza cyane wa tetrahydrofuran ni umuti mwiza ukoreshwa cyane, cyane cyane mu gushonga PVC, polyvinylidene chloride na butylaniline, ukoreshwa cyane nk'umusemburo mu gusiga hejuru, gusiga hasi, inki zo gucapa, kaseti n'inki zo gusiga firime kuri electro-Chemicalbook Aluminium Plating Liquid ishobora kugenzura ubugari bwa aluminiyumu n'Ubwiza. Gusiga hejuru ya kaseti ya magnetique, gusiga hejuru ya PVC, gusukura reactor ya PVC, gukuraho filimi ya PVC, gusiga hejuru ya cellophane, wino yo gucapa ya pulasitiki, gusiga hejuru ya polyurethane ya thermoplastic, gusiga hejuru ya kole, bikoreshwa cyane mu gusiga hejuru, gusiga hejuru, inki, ibikuramo n'ibikoresho byo gutunganya hejuru ku ruhu rw'ubukorano.
3. Ikoreshwa nk'ibikoresho fatizo mu gukora imvange y'ibinyabuzima nk'imiti ikoreshwa mu gukora tetrahydrothiophene, 1.4 - dichloroethane, 2.3 Ikoreshwa mu gukora tetrahydrothiophene, 1.4-dichloroethane, 2.3-dichlorotetrahydrofuran, valerolactone, butyrolactone na pyrrolidone. Mu nganda zikora imiti, ikoreshwa mu gukora inkorora, Rifamycin, progesterone n'imiti imwe n'imwe ikoreshwa mu misemburo. Tetrahydrothiophenol ikorwa binyuze mu kuvura hidorojeni sulfide, ishobora gukoreshwa nk'impumuro nziza mu mwuka uhumanya ikirere (inyongeramusaruro), kandi ni yo mvange nyamukuru mu nganda zikora imiti.
4. Izindi Ngaruka: Umusemburo wa chromatographic (gel permeation chromatography), ukoreshwa mu gusiga impumuro ya gaze karemano, umusemburo wo gukuramo acetylene, n'ibikoresho bigabanya urumuri mu bikoresho bya polymer. Bitewe n'ikoreshwa rya tetrahydrofuran, cyane cyane iterambere ryihuse ry'inganda za spandex zo mu Bushinwa mu myaka ya vuba aha, byatumye icyifuzo cy'Ubushinwa cya PTMEG kiriyongera, kandi icyifuzo cya tetrahydrofuran nacyo ni ikintu gikomeje kwiyongera cyane.

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