Tetrahydrofuran
Chirungu aas: THF; oxolane; Butane, alpha, delta-oxide; Cyclotetramethylene oxide; Diethylene oxide; Furan, tetrahydro-; Furanidine; 1, 2, 3, 4 - tetrahydro - 9 h - fluoren - 9 - imwe
CAS kwete. : 109-99-9
EINECS nhamba. : 203-726-8
Molecular formula: C4H8O
Molecular uremu: 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
Molecular chimiro: Tetrahydrofuran 109-99-9
Kuwanda: 1.17 g/cm3
Kunyungudika: 108.4 ℃
Poindi yekubikira: 343.2°C pa760 mmHg
Kupenya: 150.7 ° C
Kunyungudika kwemvura: Kusanganiswa
Kutsiga kwemvura: 7.15E-05mmHg pa25°C
Zvenyama nemakemikari zvivakwa:
Hunhu husina ruvara runoonekera mvura, ine ether kunhuwa.
Iyo yekubikira nzvimbo ye67 ℃
Nzvimbo yechando - 108 ℃
Hukama density 0.985
Iyo refractive index ye1.4050
Flash point - 17 ℃
Solubility inosanganiswa nemvura, doro, ketone, benzene, ester, ether, hydrocarbon.
Kushandiswa Kwechigadzirwa:
Inoshandiswa se solvent uye mbishi zvinhu zve organic synthesis

Tetrahydrofuran, yakapfupikiswa THF, ndeye heterocyclic organic compound. Iyo ndeyeboka reether uye ndiyo yakazara hydrogenation chigadzirwa cheinonhuhwirira musanganiswa furan. Tetrahydrofuran ndeimwe yakasimba kwazvo polar ether. Inoshandiswa sepakati polar solvent mumakemikari reaction uye kubvisa. Imvura isina ruvara inoputika patembiricha yekamuri uye ine kunhuhwirira kwakafanana kune diethyl ether. Inonyungudika mumvura, ethanol, ether, acetone, Chemicalbook benzene uye zvimwe organic solvents, inozivikanwa se "universal solvent". Inogona kusanganiswa nemvura patembiricha yekamuri, ndosaka vamwe vatengesi zvisiri pamutemo reagent vachiita purofiti yakakura nekusanganisa tetrahydrofuran reagent nemvura. Sezvo THF inoda kuumba peroxides mukuchengetedza, iyo antioxidant BHT inowanzowedzerwa kune zvigadzirwa zvemaindasitiri. Mvura iri pasi pe 0.2%. Iyo ine hunhu hwehupfu hwakaderera, yakaderera kubikira poindi uye yakanaka fluidity.
Parizvino, vagadziri vakuru vekumba vetetrahydrofuran vanosanganisira BASF China, Dalian Yizheng (DCJ), Shanxi Sanwei, Sinochem International, uye Petrochina Qianguo Refinery, nezvimwewo, uye zvimwe ZVIMWE PBT zvidyarwa zvinogadzirawo chikamu chezvakagadzirwa. Zvirongwa zvekutengesa zveLyondellBasell Industries muUnited States neEurope ndezvi: kuchena 99.90% Chemicalbook, chroma (APHA) 10, mwando 0.03%, THF hydroperoxide 0.005%, kusachena kwese 0.05%, uye oxidation inhibitor 5% ~ 0.025%. Muindasitiri yepolyurethane, iyo inonyanya kukosha kushandiswa ndeye monomer zvinhu zvepolytetrahydrofuranediol (PTMEG), inova imwe yemashandisirwo makuru eTHF.

Main kushandiswa:
Chinangwa chikuru
1. Iyo yakasvibiswa yekugadzirwa kwe polyurethane fiber tetrahydrofuran inogona kuva polycondensation (cationic initiated ring-opening repolymerization) mu polytetramethylene ether diol (PTMEG), inozivikanwawo se tetrahydrofuran homopolyether. PTMEG uye TOLuene diisocyanate (TDI) inogadzirwa kuita rabha yakakosha nekupfeka kwakanaka kuramba, mafuta kuramba, kuderera kwekushisa kuita uye simba rakakura. Block polyether polyester elastomer yakagadzirwa ne dimethyl terephthalate uye 1, 4-butanediol. Polyurethane elastic fibers (SPANDEX, SPANDEX), rabha yakakosha uye mamwe machira echinangwa akakosha anogadzirwa kubva ku2000 PTMEG uye p-methylene bis (4-phenyl) diisocyanate (MDI). Kunyanya kukosha kushandiswa kweTHF kugadzira PTMEG. Zvinoenderana nehuwandu hwakakasharara, inopfuura 80% yeTHF munyika inoshandiswa kugadzira PTMEG, nepo PTMEG ichinyanya kushandiswa kugadzira elastic spandex fiber.
2. Tetrahydrofuran yakanaka inonyungudutsa inowanzoshandiswa, kunyanya yakakodzera kunyungudutsa PVC, polyvinylidene chloride uye butaniline. Inoshandiswa zvakanyanya sechinhu chinonyungudutsa chekuputira pamusoro, anti-corrosion coating, inki yekudhinda, magineti tepi uye firimu coating. Magnetic tape coating, PVC surface coating, KUCHENZA PVC reactor, kubviswa kwePVC film, cellophane coating, plastic printing inki, thermoplastic polyurethane coating, solvent for adhesives, inoshandiswa zvakanyanya mukuputira pamusoro, machira ekudzivirira, ingi, extractants uye synthetic leather surface finishing agents. .
3. Inoshandiswa sezvinhu zvakasvibiswa zvekugadzirwa kwezvinhu zvakadai semishonga yekugadzirwa kwe tetrahydrothiophene, 1.4-dichloroethane, 2.3-dichlorotetrahydrofuran, petolactone, butyllactone uye pyrrolidone, nezvimwewo. progesterone uye mamwe mahomoni zvinodhaka. Tetrahydrothiophenol, iyo inogadzirwa nehydrogen sulfide kurapwa, inogona kushandiswa sechinhu chinonhuwa (identification additive) mumafuta gasi uye zvakare ndiyo inonyanya kunyungudutsa muindasitiri yemishonga.
4. Mamwe mashandisirwo echromatographic solvents (gel permeation chromatography), anoshandiswa kunakidza gasi rechisikigo, acetylene extraction solvent, polymer zvinhu, zvakadai sechiedza stabilizer. Nekushandiswa kwakakura kwe tetrahydrofuran, kunyanya kukurumidza kukura kwe spandex indasitiri muChina mumakore achangopfuura, kudiwa kwePTMEG muChina kuri kuwedzera zuva nezuva, uye kudiwa kwe tetrahydrofuran kunoratidzawo kukurumidza kukura maitiro.