Tetrahydrofuran
Dzina lachingerezi: THF; oxolane; Butane, alpha, delta-oxide; Cyclotetramethylene okusayidi; Diethylene oxide; Furan, tetrahydro-; Furanidine; 1, 2, 3, 4 - tetrahydro - 9 h - fuloroni - 9 - imodzi
CAS no. : 109-99-9
EINECS no. : 203-726-8
Fomula ya maselo: C4H8O
Kulemera kwa molekyulu: 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
Mapangidwe a maselo: Tetrahydrofuran 109-99-9
Kachulukidwe: 1.17 g/cm3
Malo osungunuka: 108.4 ℃
Malo otentha: 343.2 ° C pa 760 mmHg
Kuwala: 150.7 ° C
Kusungunuka m'madzi: Kusakanikirana
Kuthamanga kwa nthunzi: 7.15E-05mmHg pa 25°C
Thupi ndi mankhwala katundu:
Makhalidwe amadzimadzi owoneka bwino opanda mtundu, amakhala ndi fungo la etha.
Kuwira kwa 67 ℃
Kuzizira - 108 ℃
Kuchulukana kwachibale 0.985
Refractive index ya 1.4050
Kung'anima - 17 ℃
Kusungunuka kumasakanikirana ndi madzi, mowa, ketone, benzene, ester, ether, hydrocarbon.
Kugwiritsa Ntchito Zinthu:
Amagwiritsidwa ntchito ngati zosungunulira komanso zopangira organic synthesis

Tetrahydrofuran, chidule THF, ndi heterocyclic organic pawiri. Ndi ya gulu la ether ndipo ndi wathunthu wa hydrogenation mankhwala a onunkhira pawiri furan. Tetrahydrofuran ndi imodzi mwa ether yamphamvu kwambiri ya polar. Amagwiritsidwa ntchito ngati sing'anga polar zosungunulira mu chemical reaction ndi m'zigawo. Ndi madzi osungunuka opanda mtundu pa kutentha kwa chipinda ndipo ali ndi fungo lofanana ndi diethyl ether. Amasungunuka m'madzi, ethanol, etha, acetone, Chemicalbook benzene ndi zosungunulira zina organic, zomwe zimadziwika kuti "universal solvent". Zitha kukhala zosakanikirana pang'ono ndi madzi kutentha, chifukwa chake mavenda ena osagwirizana ndi malamulo amapeza phindu lalikulu posakaniza tetrahydrofuran reagent ndi madzi. Popeza THF imakonda kupanga peroxides posungira, antioxidant BHT nthawi zambiri imawonjezedwa kuzinthu zamakampani. Madzi ndi osakwana 0.2%. Ili ndi mawonekedwe a kawopsedwe otsika, malo otentha otsika komanso madzi abwino.
Pakalipano, opanga zazikulu zapakhomo za tetrahydrofuran akuphatikizapo BASF China, Dalian Yizheng (DCJ), Shanxi Sanwei, Sinochem International, ndi Petrochina Qianguo Refinery, etc. Zogulitsa za LyondellBasell Industries ku United States ndi ku Europe ndi: kuyera 99.90%Chemicalbook, chroma (APHA) 10, chinyezi 0.03%, THF hydroperoxide 0.005%, zonyansa zonse 0.05%, ndi oxidation inhibitor 5% ~ 0.025% ~ 0.025%. M'makampani a polyurethane, ntchito yofunikira kwambiri imakhala ngati monomer za polytetrahydrofuranediol (PTMEG), yomwe ndi imodzi mwazogwiritsidwa ntchito kwambiri za THF.

Zogwiritsa ntchito kwambiri:
Cholinga chachikulu
1. Zopangira za kaphatikizidwe ka polyurethane fiber tetrahydrofuran zitha kukhala polycondensation (cationic initiated ring-opening repolymerization) mu polytetramethylene ether diol (PTMEG), yomwe imadziwikanso kuti tetrahydrofuran homopolyether. PTMEG ndi TOLuene diisocyanate (TDI) amapangidwa kukhala mphira wapadera wokhala ndi kukana kwabwino, kukana mafuta, kutsika kwa kutentha komanso mphamvu yayikulu. Block polyether polyester elastomer inakonzedwa ndi dimethyl terephthalate ndi 1, 4-butanediol. Zingwe zotanuka za polyurethane (SPANDEX, SPANDEX), mphira wapadera ndi zokutira zina zapadera zimapangidwa kuchokera ku 2000 PTMEG ndi p-methylene bis (4-phenyl) diisocyanate (MDI). Kugwiritsa ntchito kofunikira kwambiri kwa THF ndikupanga PTMEG. Malinga ndi ziwerengero zovuta, oposa 80% a THF padziko lapansi amagwiritsidwa ntchito kupanga PTMEG, pomwe PTMEG imagwiritsidwa ntchito kwambiri popanga zotanuka spandex CHIKWANGWANI.
2. Tetrahydrofuran ndi zosungunulira zabwino zomwe zimagwiritsidwa ntchito, makamaka zoyenera kusungunula PVC, polyvinylidene chloride ndi butaniline. Amagwiritsidwa ntchito kwambiri ngati zosungunulira zokutira pamwamba, anti-corrosion zokutira, inki yosindikiza, tepi ya maginito ndi zokutira zamafilimu. Maginito tepi ❖ kuyanika, PVC pamwamba ❖ kuyanika, KUYERETSA PVC riyakitala, kuchotsa PVC filimu, cellophane ❖ kuyanika, pulasitiki kusindikiza inki, thermoplastic polyurethane ❖ kuyanika, zosungunulira kwa zomatira, chimagwiritsidwa ntchito zokutira pamwamba, zokutira zoteteza, inki, extractants ndi kupanga chikopa pamwamba kutsirizitsa wothandizila. .
3. Amagwiritsidwa ntchito ngati zipangizo zopangira organic synthesis monga mankhwala opangira tetrahydrothiophene, 1.4-dichloroethane, 2.3-dichlorotetrahydrofuran, petolactone, butyllactone ndi pyrrolidone, ndi zina zotero. progesterone ndi mankhwala ena a mahomoni. Tetrahydrothiophenol, yomwe imapangidwa ndi mankhwala a hydrogen sulfide, imatha kugwiritsidwa ntchito ngati fungo lothandizira (chizindikiritso chowonjezera) mumafuta amafuta komanso ndiye chosungunulira chachikulu pamakampani opanga mankhwala.
4. Ntchito zina za chromatographic solvents (gel permeation chromatography), zomwe zimagwiritsidwa ntchito pa kukoma kwa gasi, zosungunulira za acetylene, zipangizo za polima, monga stabilizer ya kuwala. Ndi ntchito lonse la tetrahydrofuran, makamaka kukula mofulumira kwa makampani spandex mu China m'zaka zaposachedwapa, kufunika kwa PTMEG ku China kukuchulukirachulukira tsiku ndi tsiku, ndi kufunika kwa tetrahydrofuran limasonyezanso chizolowezi kukula mofulumira.