Tetrahydrofuran
Ingiriisi oo loo yaqaan: THF; oxolane; Butane, alfa,delta-oxide; Cyclotetramethylene oxide; Diethylene oxide; Furan, tetrahydro-; Furanidine; 1, 2, 3, 4 - tetrahydro - 9 saacadood - fluoren - 9 - hal
CAS maya. : 109-99-9
EINECS maya. : 203-726-8
Qaaciddada molecular: C4H8O
Miisaanka molecular: 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
Qaab dhismeedka molecular: Tetrahydrofuran 109-99-9
Cufnaanta: 1.17 g/cm3
Barta dhalaalka: 108.4 ℃
Barta karkarinta: 343.2°C at 760 mmHg
Fiiri: 150.7 ° C
Biyuhu milmayn: Maqnaanshaha
Cadaadiska uumiga: 7.15E-05mmHg at 25°C
Tilmaamaha jirka iyo kiimikaad:
Dareere hufan oo aan midab lahayn, waxay leeyihiin ur ether ah.
Barta karkarinta ee 67 ℃
Bar qaboojinta - 108 ℃
Cufnaanta qaraabada 0.985
Tusmada dib-u-celinta ee 1.4050
Dhibcaha Flash - 17 ℃
Solubility waa la qallafsan yahay biyaha, khamriga, ketone, benzene, ester, ether, hydrocarbon.
Isticmaalka Alaabta:
Loo isticmaalo sida dareere iyo walxo ceeriin ah oo loogu talagalay isku-dhafka organic

Tetrahydrofuran, oo loo soo gaabiyo THF, waa unug dabiici ah oo heterocyclic ah. Waxay ka tirsan tahay kooxda ether-ka waana wax soo saarka hydrogenation oo dhammaystiran oo ka mid ah isku xidhka udgoonka furan. Tetrahydrofuran waa mid ka mid ah eter polar-ka ugu xoogga badan. Waxa loo isticmaalaa sida dareere dhexdhexaad ah oo dabaylaha ah falcelinta kiimikada iyo soo saarista. Waa dareere aan midab lahayn oo isbeddelaya heerkulka qolka wuxuuna leeyahay ur la mid ah diethyl ether. Ku milmay biyaha, ethanol, ether, acetone, kiimikooyinka benzene iyo dareerayaasha kale ee dabiiciga ah, oo loo yaqaan "qalalka caalamiga ah". Waxay noqon kartaa qayb ahaan lagu khalkhal gelin karo biyaha heerkulka qolka, taas oo ah sababta qaar ka mid ah iibiyeyaasha sharci-darrada ah ay ka helaan faa'iido weyn iyagoo ku daraya reagent tetrahydrofuran biyo. Maaddaama THF ay u janjeerto inay samaysato peroxides kaydinta, BHT-da antioxidant guud ahaan waxaa lagu daraa alaabada warshadaha. Biyaha ku jira wax ka yar 0.2%. Waxay leedahay sifooyinka sunta hoose, barta karkarinta hoose iyo dheecaanka wanaagsan.
Waqtigan xaadirka ah, soosaarayaasha waaweyn ee gudaha ee tetrahydrofuran waxaa ka mid ah BASF Shiinaha, Dalian Yizheng (DCJ), Shanxi Sanwei, Sinochem International, iyo Petrochina Qianguo Refinery, iwm. LyondellBasell Industries 'tusmooyinka iibka ee Maraykanka iyo Yurub waa: daahirnimada 99.90% Kiimikada, chroma (APHA) 10, qoyaan 0.03%, THF hydroperoxide 0.005%, wadarta wasakhda 0.05%, iyo oxidation inhibitor 0.025% 5% Warshadaha poliurethane, isticmaalka ugu muhiimsan waa sida walxaha monomer ee polytetrahydrofuranediol (PTMEG), taas oo sidoo kale ah mid ka mid ah isticmaalka ugu muhiimsan ee THF.

Isticmaalka ugu muhiimsan:
Ujeedada ugu weyn
1. Qalabka ceeriin ee isku-dhafka ah ee tetrahydrofuran fiber polyurethane wuxuu noqon karaa polycondensation (cationic initiated repolymerization repolymerization giraanta) galay polytetramethylene ether diol (PTMEG), oo sidoo kale loo yaqaan tetrahydrofuran homopolyether. PTMEG iyo TOLUene diisocyanate (TDI) ayaa laga sameeyay caag gaar ah oo leh caabbinta xirashada wanaagsan, caabbinta saliidda, heerkulka hooseeya iyo awood sare. elastomer polyester-ka xannibaadda waxaa lagu diyaariyey dimethyl terephthalate iyo 1, 4-butanediol. Fiilooyinka laastikada ee polyurethane (SPANDEX, SPANDEX), caag gaar ah iyo qaar ka mid ah dahaarka ujeedooyinka gaarka ah ayaa laga sameeyay 2000 PTMEG iyo p-methylene bis (4-phenyl) diisocyanate (MDI). Isticmaalka ugu muhiimsan ee THF waa in la soo saaro PTMEG. Marka loo eego tirakoobyada qallafsan, in ka badan 80% THF adduunka ayaa loo isticmaalaa si loo soo saaro PTMEG, halka PTMEG inta badan loo isticmaalo in lagu soo saaro fiber spandex elastic.
2. Tetrahydrofuran waa dareere wanaagsan oo caadi ahaan loo isticmaalo, gaar ahaan ku habboon kala dirida PVC, chloride polyvinylidene iyo butaniline. Waxaa si ballaaran loo isticmaalaa sida dareere loogu talagalay daahan dusha sare, daahan ka-hortagga daxalka, daabacaadda khad, cajalad magnetic iyo daahan filimka. Daahan cajalad Magnetic ah, daahan dusha PVC, Nadiifinta reactor PVC, saarista filimka PVC, daahan cellophane, caag daabacaadda qalin, daahan polyurethane thermoplastic, dareere loogu talagalay xabagta, oo si ballaaran loo isticmaalo daahan dusha, daahan ilaalinta, khadadka, soosaarayaasha iyo dhammayn dusha maqaarka synthetic. .
3. Waxaa loo isticmaalaa sida alaabta ceeriin ee isku dhafka dabiiciga ah sida dawooyinka loogu talagalay soo saarista tetrahydrothiophene, 1.4-dichloroethane, 2.3-dichlorotetrahydrofuran, pentolactone, butyllactone iyo pyrrolidone, iwm. progesterone iyo daawooyinka hormoonnada qaarkood. Tetrahydrothiophenol, oo ay soo saarto daawaynta hydrogen sulfide, ayaa loo isticmaali karaa sida wakiilka ur (wax lagu daro) ee gaasta shidaalka iyo sidoo kale dareeraha ugu weyn ee warshadaha dawooyinka.
4. Isticmaalka kale ee dareerayaasha chromatographic (gel permeation chromatography), loo isticmaalo dhadhanka gaaska dabiiciga ah, dareeraha soo saarista acetylene, alaabta polymer, sida xasiliyaha iftiinka. Codsiga ballaaran ee tetrahydrofuran, gaar ahaan kobaca degdega ah ee warshadaha spandex ee Shiinaha sannadihii la soo dhaafay, baahida loo qabo PTMEG ee Shiinaha ayaa sii kordheysa maalinba maalinta ka dambeysa, baahida tetrahydrofuran waxay sidoo kale muujinaysaa isbeddel degdeg ah.