Tetrahydrofuran
English inagijẹ: THF; oxolane; Butane, alfa,delta-oxide; oxide cyclotetramethylene; Diethylene oxide; Furan, tetrahydro-; Furanidine; 1, 2, 3, 4 - tetrahydro - wakati 9 - fluoren - 9 - ọkan
CAS No. : 109-99-9
EINECS rara. 203-726-8
Ilana molikula: C4H8O
iwuwo molikula: 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
Ilana molikula: Tetrahydrofuran 109-99-9
iwuwo: 1.17 g/cm3
Ojuami yo: 108.4 ℃
Ojutu farabale: 343.2°C ni 760 mmHg
Filaṣi: 150.7 ° C
Omi solubility: Miscible
Titẹ titẹ: 7.15E-05mmHg ni 25°C
Awọn ohun-ini ti ara ati kemikali:
Omi ti ko ni awọ ti ohun kikọ, ni oorun ether.
Ojutu farabale ti 67 ℃
Aaye didi - 108 ℃
Ojulumo iwuwo 0.985
The refractive Ìwé ti 1.4050
Filasi ojuami – 17 ℃
Solubility jẹ miscible pẹlu omi, oti, ketone, benzene, ester, ether, hydrocarbon.
Lilo ọja:
Ti a lo bi epo ati ohun elo aise fun iṣelọpọ Organic

Tetrahydrofuran, abbreviated THF, jẹ ẹya heterocyclic Organic yellow. O jẹ ti ẹgbẹ ether ati pe o jẹ ọja hydrogenation pipe ti agbo aroma ti furan. Tetrahydrofuran jẹ ọkan ninu ether pola ti o lagbara julọ. O ti wa ni lo bi awọn kan alabọde pola epo ni kemikali lenu ati isediwon. O jẹ omi ti ko ni awọ ni iwọn otutu yara ati pe o ni oorun ti o jọra si ether diethyl. Tiotuka ninu omi, ethanol, ether, acetone, Chemicalbook benzene ati awọn nkan ti o nfo Organic miiran, ti a mọ ni “olomi gbogbo agbaye”. O le jẹ aibikita pẹlu omi ni iwọn otutu yara, eyiti o jẹ idi ti diẹ ninu awọn olutaja reagent arufin ṣe awọn ere nla nipa didapọ reagent tetrahydrofuran pẹlu omi. Niwọn igba ti THF n duro lati dagba peroxides ni ibi ipamọ, BHT antioxidant jẹ afikun si awọn ọja ile-iṣẹ. Akoonu omi ko kere ju 0.2%. O ni awọn abuda ti majele kekere, aaye gbigbo kekere ati ṣiṣan ti o dara.
Lọwọlọwọ, awọn olupilẹṣẹ ile pataki ti tetrahydrofuran pẹlu BASF China, Dalian Yizheng (DCJ), Shanxi Sanwei, Sinochem International, ati Petrochina Qianguo Refinery, ati bẹbẹ lọ, ati diẹ ninu awọn ohun ọgbin PBT miiran tun gbejade apakan ti awọn ọja. Awọn atọka tita ti LyondellBasell Industries ni Amẹrika ati Yuroopu jẹ: mimọ 99.90% Kemikali, chroma (APHA) 10, ọrinrin 0.03%, THF hydroperoxide 0.005%, aibikita lapapọ 0.05%, ati inhibitor oxidation 0.0203% 5% Ni ile-iṣẹ polyurethane, lilo pataki julọ jẹ bi ohun elo monomer fun polytetrahydrofuranediol (PTMEG), eyiti o tun jẹ ọkan ninu awọn lilo akọkọ ti THF.

Awọn lilo akọkọ:
Idi pataki
1. Awọn ohun elo aise ti iṣelọpọ ti polyurethane fiber tetrahydrofuran le jẹ polycondensation (cationic initiated ring-sing repolymerization) sinu polytetramethylene ether diol (PTMEG), ti a tun mọ ni tetrahydrofuran homopolyether. PTMEG ati TOLUene diisocyanate (TDI) ni a ṣe sinu rọba pataki pẹlu resistance yiya ti o dara, resistance epo, iṣẹ iwọn otutu kekere ati agbara giga. Àkọsílẹ polyester elastomer ti pese sile pẹlu dimethyl terephthalate ati 1, 4-butanediol. Awọn okun rirọ polyurethane (SPANDEX, SPANDEX), roba pataki ati diẹ ninu awọn ohun elo pataki ti a ṣe lati 2000 PTMEG ati p-methylene bis (4-phenyl) diisocyanate (MDI). Lilo pataki julọ ti THF ni lati ṣe agbejade PTMEG. Gẹgẹbi awọn iṣiro inira, diẹ sii ju 80% ti THF ni agbaye ni a lo lati ṣe agbejade PTMEG, lakoko ti a lo PTMEG ni akọkọ lati ṣe agbejade okun spandex rirọ.
2. Tetrahydrofuran jẹ ohun elo ti o dara julọ ti a lo nigbagbogbo, paapaa ti o dara fun fifọ PVC, polyvinylidene kiloraidi ati butaniline. O ti wa ni o gbajumo ni lilo bi awọn kan epo fun dada bo, egboogi-ipata bo, titẹ sita inki, oofa teepu ati film bo. Ideri teepu oofa, ibora dada PVC, Imudanu PVC riakito, yiyọ fiimu PVC, ibora cellophane, inki titẹ sita ṣiṣu, ibora polyurethane thermoplastic, epo fun awọn adhesives, ti a lo ni lilo pupọ ni awọn aṣọ ilẹ, awọn aṣọ aabo, awọn inki, awọn jade ati awọn aṣoju ipari dada alawọ sintetiki .
3. Ti a lo bi awọn ohun elo aise fun iṣelọpọ Organic gẹgẹbi awọn oogun fun iṣelọpọ tetrahydrothiophene, 1.4-dichloroethane, 2.3-dichlorotetrahydrofuran, pentolactone, butyllactone ati pyrrolidone, bbl Ni ile-iṣẹ elegbogi, a lo fun iṣelọpọ kepidine, rifamycin synthes progesterone ati diẹ ninu awọn oogun homonu. Tetrahydrothiophenol, eyiti o jẹ iṣelọpọ nipasẹ itọju hydrogen sulfide, le ṣee lo bi oluranlowo oorun (afikun idanimọ) ninu gaasi epo ati pe o tun jẹ epo akọkọ ni ile-iṣẹ oogun.
4. Awọn lilo miiran ti awọn ohun elo chromatographic (gel permeation chromatography), ti a lo fun adun gaasi adayeba, iyọkuro iyọkuro acetylene, awọn ohun elo polymer, gẹgẹbi imuduro ina. Pẹlu ohun elo jakejado ti tetrahydrofuran, paapaa idagbasoke iyara ti ile-iṣẹ spandex ni Ilu China ni awọn ọdun aipẹ, ibeere fun PTMEG ni Ilu China n pọ si lojoojumọ, ati ibeere fun tetrahydrofuran tun ṣafihan aṣa idagbasoke iyara.