Tetrahydrofuran
Bekee utu aha: THF; oxolane; Butane, alfa, delta-oxide; Cyclotetramethylene oxide; Diethylene oxide; Furan, tetrahydro-; Furanidine; 1, 2, 3, 4 - tetrahydro - awa 9 - fluoren - 9 - otu.
CAS mba. : 109-99-9
EINECS mba. : 203-726-8
Usoro ihe omimi: C4H8O
Ibu ibu: 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
Ọdịdị molekụla: Tetrahydrofuran 109-99-9
Njupụta: 1.17 g/cm3
Ebe mgbaze: 108.4 ℃
Ebe esi mmiri: 343.2°C na 760 mmHg
Flash ọkụ: 150.7 Celsius
Mmiri solubility: Miscible
Nrụgide ikuku: 7.15E-05mmHg na 25°C
Njirimara anụ ahụ na kemịkal:
Mmiri mmiri na-enweghị agba, nwere isi ether.
Isi ihe na-esi ísì ụtọ nke 67 ℃
Ebe oyi - 108 ℃
Njupụta njikọ 0.985
Ntụgharị refractive nke 1.4050
Ebe Flash - 17 ℃
Solubility bụ miscible na mmiri, mmanya, ketone, benzene, ester, ether, hydrocarbon.
Eji ngwaahịa:
Ejiri ya dị ka ihe mgbaze na akụrụngwa maka njikọ organic

Tetrahydrofuran, nke a na-akpọ THF, bụ ngwakọta organic heterocyclic. Ọ bụ nke otu ether ma bụrụ ngwaahịa hydrogenation zuru oke nke ogige aromatic furan. Tetrahydrofuran bụ otu n'ime ether polar kachasị ike. A na-eji ya dị ka ihe mgbaze pola ọkara na mmeghachi omume kemịkal na mmịpụta. Ọ bụ mmiri mmiri na-agbanwe agbanwe na-enweghị ụcha n'ime ụlọ ma nwee ísì yiri diethyl ether. Soluble na mmiri, ethanol, ether, acetone, Chemicalbook benzene na ihe ndị ọzọ na-agbaze organic, nke a maara dị ka "ihe mgbaze ụwa". Ọ nwere ike ịmegharị ya na mmiri n'ime ụlọ okpomọkụ, nke mere ụfọdụ ndị na-ere ihe reagent na-akwadoghị na-enweta nnukwu uru site na ịgwakọta tetrahydrofuran reagent na mmiri. Ebe THF na-eme ka ọ bụrụ peroxides na nchekwa, a na-agbakwunye BHT antioxidant na ngwaahịa ụlọ ọrụ. Ọdịnaya mmiri na-erughị 0.2%. O nwere njirimara nke obere nsi, obere esi esi na mmiri dị mma.
Ka ọ dị ugbu a, ndị isi ụlọ na-emepụta tetrahydrofuran gụnyere BASF China, Dalian Yizheng (DCJ), Shanxi Sanwei, Sinochem International, na Petrochina Qianguo Refinery, wdg, na ụfọdụ osisi PBT ndị ọzọ na-emepụtakwa akụkụ nke ngwaahịa. Ndekọ ahịa ahịa nke LyondellBasell Industries na United States na Europe bụ: ịdị ọcha 99.90% Chemicalbook, chroma (APHA) 10, mmiri 0.03%, THF hydroperoxide 0.005%, ngụkọta adịghị ọcha 0.05%, na onye na-egbochi oxidation 0.0203% 5% Na ụlọ ọrụ polyurethane, ihe kachasị mkpa bụ ihe eji eme ihe dị ka ihe monomer maka polytetrahydrofuranediol (PTMEG), nke bụkwa otu n'ime isi ihe eji eme ihe nke THF.

Isi ojiji:
Ebumnuche bụ isi
1. Ngwa ngwa nke njikọ nke polyurethane fiber tetrahydrofuran nwere ike ịbụ polycondensation (cationic initiated ring-open repolymerization) n'ime polytetramethylene ether diol (PTMEG), nke a makwaara dị ka tetrahydrofuran homopolyether. A na-eme PTMEG na TOLUene diisocyanate (TDI) ka ọ bụrụ rọba pụrụ iche nke nwere ezigbo mgbochi na-eyi, mgbochi mmanụ, arụmọrụ dị ala na ike dị elu. A na-eji dimethyl terephthalate na 1, 4-butanediol kwadoro ngọngọ polyether polyester elastomer. A na-eme eriri polyurethane elastic fibers (SPANDEX, SPANDEX), roba pụrụ iche na ụfọdụ ihe mkpuchi pụrụ iche sitere na 2000 PTMEG na p-methylene bis (4-phenyl) diisocyanate (MDI). Ojiji kacha mkpa nke THF bụ imepụta PTMEG. Dị ka ọnụ ọgụgụ siri ike si kwuo, a na-eji ihe karịrị 80% nke THF n'ụwa emepụta PTMEG, ebe PTMEG na-ejikarị emepụta eriri spandex na-agbanwe.
2. Tetrahydrofuran bụ ihe mgbaze dị mma nke a na-ejikarị eme ihe, karịsịa maka igbari PVC, polyvinylidene chloride na butaniline. A na-ejikarị ya eme ihe dị ka ihe mgbaze maka mkpuchi elu, mkpuchi mgbochi corrosion, ink mbipụta, teepu magnetik na mkpuchi ihe nkiri. Ihe mkpuchi teepu magnetik, mkpuchi elu PVC, ihe na-eme ka PVC dị ọcha, mwepụ nke ihe nkiri PVC, mkpuchi cellophane, ink na-ebi akwụkwọ plastik, mkpuchi polyurethane thermoplastic, ihe mgbaze maka adhesives, nke a na-ejikarị eme ihe na mkpuchi elu, mkpuchi mkpuchi, inks, ndị na-amịpụta na ndị na-emecha akpụkpọ anụ sịntetik. .
3. A na-eji ya dị ka ihe eji eme ihe maka mmepụta ihe ndị dị ka ọgwụ maka mmepụta nke tetrahydrothiophene, 1.4-dichloroethane, 2.3-dichlorotetrahydrofuran, pentolactone, butyllactone na pyrrolidone, wdg N'ime ụlọ ọrụ ọgwụ, a na-eji kepidine, rifacincin na-arụ ọrụ na-arụ ọrụ, nke a na-eji eme ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta ihe na-emepụta tetrahydrothiophene. progesterone na ụfọdụ ọgwụ hormonal. Enwere ike iji Tetrahydrothiophenol, nke a na-emepụta site na ọgwụgwọ hydrogen sulfide, dị ka ihe na-esi ísì ụtọ (ihe mgbakwunye njirimara) na gas mmanụ ma bụrụkwa isi ihe mgbaze na ụlọ ọrụ ọgwụ.
4. Ihe ndị ọzọ na-eji ihe mgbaze chromatographic (gel permeation chromatography), nke a na-eji ekpomeekpo gas, acetylene mmịpụta ihe mgbaze, ihe polymer, dị ka ìhè stabilizer. Site na ngwa ngwa nke tetrahydrofuran, karịsịa ngwa ngwa ngwa ngwa nke ụlọ ọrụ spandex na China na afọ ndị na-adịbeghị anya, ọchịchọ maka PTMEG na China na-abawanye kwa ụbọchị, na ọchịchọ maka tetrahydrofuran na-egosikwa ọganihu ngwa ngwa.