Tetrahydrofuran
inoa Pelekane: THF; oxolane; Butane, alpha, delta-oxide; Cyclotetramethylene oxide; Diethylene oxide; Furana, tetrahydro-; Furanidine; 1, 2, 3, 4 - tetrahydro - 9 h - fluoren - 9 - hoʻokahi
CAS no. : 109-99-9
EINECS no. : 203-726-8
Huina mole: C4H8O
Kaumaha molekula: 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
Hoʻolālā molekole: Tetrahydrofuran 109-99-9
Māmā: 1.17 g/cm3
Ka helu hehee: 108.4 ℃
Ka helu paila: 343.2°C ma 760 mmHg
Ka uila: 150.7 ° C
Hiki ke hoʻoheheʻe wai: Miscible
Pumi mahu: 7.15E-05mmHg ma 25°C
Nā waiwai kino a me kemika:
ʻO ke ʻano o ka wai aniani ʻaʻole waihoʻoluʻu, loaʻa ka ʻala ether.
ʻO ka helu paila o 67 ℃
ʻO ke kau anuanu – 108 ℃
Māmā pili 0.985
ʻO ka index refractive o 1.4050
Ka helu uila – 17 ℃
Hiki ke hoʻoheheʻe ʻia me ka wai, ka waiʻona, ketone, benzene, ester, ether, hydrocarbon.
Hoʻohana huahana:
Hoʻohana ʻia e like me ka solvent a me ka mea maka no ka synthesis organik

ʻO Tetrahydrofuran, i hoʻopau ʻia ʻo THF, he mea hoʻohuihui heterocyclic. No ka hui ether a ʻo ia ka huahana hydrogenation piha o ka furan compound aromatic. ʻO Tetrahydrofuran kekahi o nā polar ether ikaika loa. Hoʻohana ʻia ʻo ia ma ke ʻano he mea hoʻoheheʻe polar waena i ka hopena kemika a me ka unuhi. He wai hoʻoheheʻe kala ʻole i ka lumi wela a he ʻala like me ka diethyl ether. Hiki ke hoʻoheheʻe ʻia i loko o ka wai, ethanol, ether, acetone, Chemicalbook benzene a me nā mea hoʻoheheʻe ʻokoʻa ʻē aʻe, i kapa ʻia ʻo "universal solvent". Hiki ke hoʻoheheʻe ʻia me ka wai ma ka lumi wela, ʻo ia ke kumu e loaʻa ai ka waiwai nui o kekahi mau mea kūʻai reagent kānāwai ʻole ma ka hui ʻana i ka reagent tetrahydrofuran me ka wai. Ma muli o ka hana ʻana o THF i nā peroxides i ka mālama ʻana, hoʻohui pinepine ʻia ka BHT antioxidant i nā huahana ʻoihana. ʻO ka nui o ka wai ma lalo o 0.2%. Loaʻa iā ia nā hiʻohiʻona o ka haʻahaʻa haʻahaʻa, haʻahaʻa ka paila a me ka wai maikaʻi.
I kēia manawa, ʻo nā mea hana nui o ka home o ka tetrahydrofuran, ʻo ia ka BASF China, Dalian Yizheng (DCJ), Shanxi Sanwei, Sinochem International, a me Petrochina Qianguo Refinery, a me nā mea ʻē aʻe, a me kekahi mau mea kanu PBT ʻē aʻe e hana pū i kahi hapa o nā huahana. LyondellBasell Industries 'kūʻai indexes i loko o ʻAmelika Hui Pū ʻIa a me ʻEulopa: maʻemaʻe 99.90%Chemicalbook, chroma (APHA) 10, moisture 0.03%, THF hydroperoxide 0.005%, huina paumaele 0.05%, a me oxidation inhibitor 0.025% ~ 0.0.025%. I ka ʻoihana polyurethane, ʻo ka hoʻohana nui ʻana he mea monomer no polytetrahydrofuranediol (PTMEG), ʻo ia kekahi o nā hoʻohana nui o THF.

Hoʻohana nui:
ʻO ke kumu nui
1. ʻO ka mea maka o ka synthesis o ka polyurethane fiber tetrahydrofuran hiki ke polycondensation (cationic initiated apolymerization hoʻomaka) i polytetramethylene ether diol (PTMEG), i kapa ʻia ʻo tetrahydrofuran homopolyether. ʻO ka PTMEG a me TOLuene diisocyanate (TDI) i hana ʻia i ka lāʻau lapaʻau kūikawā me ke kūpaʻa maikaʻi ʻana o ka ʻaʻahu, ke kūpaʻa ʻaila, ka hana haʻahaʻa haʻahaʻa a me ka ikaika kiʻekiʻe. Hoʻomākaukau ʻia ka polyether polyester elastomer me ka dimethyl terephthalate a me 1, 4-butanediol. Hana ʻia nā fibers elastic polyurethane (SPANDEX, SPANDEX), ka pulupulu kūikawā a me nā mea hoʻonaninani kūikawā mai 2000 PTMEG a me p-methylene bis (4-phenyl) diisocyanate (MDI). ʻO ka hoʻohana nui ʻana o THF ka hana ʻana i ka PTMEG. Wahi a nā ʻikepili koʻikoʻi, ʻoi aku ma mua o 80% o THF i ka honua i hoʻohana ʻia e hana i ka PTMEG, ʻoiai ʻo PTMEG ka mea i hoʻohana nui ʻia e hana i ka fiber spandex elastic.
2. He mea hoʻoheheʻe maikaʻi ʻo Tetrahydrofuran i hoʻohana mau ʻia, kūpono loa no ka hoʻopau ʻana i ka PVC, polyvinylidene chloride a me butaniline. Hoʻohana nui ʻia ia e like me ka solvent no ka uhi ʻana i ka ʻili, ka uhi anti-corrosion, ka ʻīnika paʻi, ka tape magnetic a me ka uhi kiʻiʻoniʻoni. ʻO ka uhi lipine magnetic, ka uhi ʻana o ka PVC, ka hoʻomaʻemaʻe PVC reactor, ka wehe ʻana i ka kiʻiʻoniʻoni PVC, ka uhi cellophane, ka inika paʻi paʻi, ka polyurethane coating thermoplastic, ka mea hoʻoheheʻe no nā mea hoʻopili, hoʻohana nui ʻia i ka uhi ʻana o ka ʻili, nā uhi pale, nā inika, nā mea hoʻopau a me nā mea hoʻopau ʻili synthetic. .
3. Hoʻohanaʻia e like me nā mea waiwai no ka synthesis organik e like me nā lāʻau lapaʻau no ka hanaʻana i ka tetrahydrothiophene, 1.4-dichloroethane, 2.3-dichlorotetrahydrofuran, pentolactone, butyllactone a me pyrrolidone, a me nā mea'ē aʻe. progesterone a me kekahi mau lāʻau hormonal. ʻO Tetrahydrothiophenol, ka mea i hana ʻia e ka mālama ʻana i ka hydrogen sulfide, hiki ke hoʻohana ʻia ma ke ʻano he mea ʻala (identification additive) i ke kinoea wahie a ʻo ia hoʻi ka mea hoʻoheheʻe nui i ka ʻoihana lāʻau.
4. Nā hoʻohana ʻē aʻe o nā mea hoʻoheheʻe chromatographic (gel permeation chromatography), i hoʻohana ʻia no ka ʻono kinoea maoli, acetylene extraction solvent, polymer material, e like me ka light stabilizer. Me ka hoʻohana ākea o ka tetrahydrofuran, ʻoi aku ka wikiwiki o ka ulu ʻana o ka ʻoihana spandex ma Kina i nā makahiki i hala iho nei, ke piʻi nei ka noi no PTMEG ma Kina i kēlā me kēia lā, a ʻo ke koi ʻana no ka tetrahydrofuran e hōʻike ana i kahi ulu wikiwiki.