Zhejiang Realsun Chemical Co., Ltd. yog ib qho ntawm feem txhim khu kev qha manufacturers thiab lwm tus neeg ntawm tetrahydrofuran hauv Suav teb. Yog hais tias koj yuav mus yuav zoo tetrahydrofuran, txais tos kom tau txais pricelist thiab dawb qauv los ntawm peb lub hoobkas. Kev pabcuam zoo thiab tus nqi qis yog muaj.
- Suav alias: Tetrahydrofuran
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Lub npe |
Tetrahydrofuran |
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lub ntsiab lus |
TETRAMETHYLENETHERGLYCOL2000POLYMER; Tetrahydrofuran, 99.8% [Tetrahydrofuran, ACS/HPLCCertified]; Tetrahydrofuran, 99.6%, stabilized withBHT, foranalysisACS; Tetrahydrofuran, {{tabilized}%, s HT, tshuaj ntxiv tshuaj; Tetrahydrofuran, 99.9%, anhydrous, stabilized, extrapure; Tetrahydrofuran, 99.5+%, forspectroscopy; Tetrahydrofuran, 99.8%, unstabilized, forHPLC; Tetrahydrofuran, 99.85%, dej<50ppm,stabilized,extradry |
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CAS nr |
109-99-9 |
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Cov mis mos molecular |
C4H8O |
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Molecular hnyav |
72.11 |
Tetrahydrofuran cov khoom
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Melting point |
-108 degree |
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Boiling point |
66 degree |
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Qhov ntom |
0.887 g / mL ntawm 20 degree |
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Refractive Index |
n20/D 1.465 |
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Flash point |
>230℃F |
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Solubility |
soluble hauv dej |
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Daim ntawv |
ua kua |
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tsw |
Ether, ntes tau ntawm 2 txog 50 ppm |
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Tus nqi PH |
7-8 (200g / l, H2O, 20 degree) |
Tetrahydrofuran: Siv thiab Synthesis Methods
Tetrahydrofuran, abbreviated li THF, yog heterocyclic organic compound. Nws belongs rau cov chav kawm ether thiab yog cov khoom siv hydrogenated tag nrho ntawm cov tshuaj tsw qab furan. Tetrahydrofuran yog ib qho ntawm cov polar ethers uas muaj zog tshaj plaws thiab yog siv los ua cov kuab tshuaj nruab nrab hauv cov tshuaj tiv thaiv thiab kev rho tawm. Nws yog xim tsis muaj xim, tsis muaj kuab lom nyob rau hauv chav tsev kub thiab muaj ntxhiab tsw zoo ib yam li ether. Nws yog soluble hauv dej, ethanol, ether, acetone, benzene, thiab feem ntau lwm cov kuab tshuaj organic, thiab hu ua "universal hnyav". Nws yog ib nrab miscible nrog dej nyob rau hauv chav tsev kub, thiab ib co unscrupulous reagent lwm tus neeg siv cov cuab yeej no los ntawm kev sib tov tetrahydrofuran reagent nrog dej kom tau nyiaj. Vim yog qhov nyiam ntawm THF los tsim cov peroxides thaum lub sijhawm cia, cov khoom lag luam feem ntau ntxiv nrog antioxidant BHT. Cov ntsiab lus noo noo tsawg dua lossis sib npaug li 0.2%. Nws muaj cov yam ntxwv ntawm tsis tshua muaj toxicity, tsis tshua muaj boiling point, thiab zoo fluidity.
Kev siv tseem ceeb
1. Tetrahydrofuran (THF), cov khoom siv raw rau cov tshuaj tiv thaiv hluavtaws ntawm spandex, tuaj yeem ua rau tus kheej -condensation (pib los ntawm cationic nplhaib- qhib polymerization) los ua polyoxytetramethylene ether glycol (PTMEG), los yog hu ua tetrahydrofuran homopolyether. PTMEG, thaum ua ke nrog toluene diisocyanate (TDI), tsim cov roj hmab tshwj xeeb uas hnav-tiv taus, roj- tiv taus, muaj qhov kub tsis zoo- ua haujlwm kub, thiab lub zog siab; Thaum ua ke nrog dimethyl terephthalate thiab 1,4-butanediol, nws tsim thaiv cov khoom siv polyester elastic. PTMEG nrog ib tug txheeb ze molecular hnyav ntawm 2000, thaum ua ke nrog p-methylene bis (4- phenyl) diisocyanate (MDI), tsim polyurethane elastic fibers (spandex fibers), tshwj xeeb roj hmab, thiab raw cov ntaub ntawv rau ib co tshwj xeeb-purpose coatings. Qhov tseem ceeb tshaj plaws ntawm kev siv THF yog hauv kev tsim cov PTMEG. Hais lus kwv yees, ntau dua 80% ntawm lub ntiaj teb THF yog siv rau kev tsim cov PTMEG, uas yog siv los tsim cov elastic spandex fibers . 2. Tetrahydrofuran, cov kuab tshuaj muaj txiaj ntsig zoo, yog cov kuab tshuaj zoo heev, tshwj xeeb tshaj yog tsim rau cov kuab tshuaj PVC, polyvinylidene chloride, thiab butylamine. Nws yog dav siv los ua cov kuab tshuaj rau saum npoo, tshuaj tiv thaiv corrosion, luam ntawv inks, sib nqus tapes, thiab zaj duab xis txheej. Thaum siv hauv electroplating aluminium da dej, nws tuaj yeem tswj tau qhov tuab ntawm txhuas txheej thiab ua tiav qhov ci tiav. Nws yog siv los ua ib qho hnyav rau cov nplaum nplaum nplaum, PVC txheej txheej, ntxuav PVC reactors, tshem tawm PVC films, cellophane txheej, yas luam ntawv inks, thermoplastic polyurethane txheej, thiab cov nplaum. Nws yog feem ntau siv rau hauv cov txheej txheem saum npoo, tiv thaiv txheej, inks, extractants, thiab cov tshuaj tua kab mob rau cov tawv nqaij hluavtaws. 3. Tetrahydrofuran yog siv los ua cov khoom siv raw rau cov organic synthesis hauv kev lag luam tshuaj, rau kev tsim cov tetrahydrothiophene, 1,4-dichloroethane, 2,3-dichlorotetrahydrovaltone, butrolactone. pyrrolidone. Hauv kev lag luam kws tshuaj, nws yog siv los ua cov tshuaj hnoos hnoos, rifamycin, progesterone, thiab qee cov tshuaj hormones. Tetrahydrothiophene yog tsim los ntawm kev kho mob nrog hydrogen sulfide thiab tuaj yeem siv los ua cov tshuaj tsw qab (cov cim qhia ntxiv) hauv cov roj roj thiab tseem yog cov kuab tshuaj tseem ceeb hauv kev lag luam tshuaj. 4. Lwm yam Kev Siv Tetrahydrofuran yog siv los ua cov kuab tshuaj chromatographic (gel permeation chromatography), rau cov roj flavouring, acetylene cov ntaub ntawv polymer thiab cov kuab tshuaj. Nrog rau kev siv dav dav ntawm tetrahydrofuran, tshwj xeeb tshaj yog kev loj hlob sai ntawm Tuam Tshoj txoj kev lag luam spandex nyob rau xyoo tas los no, qhov kev thov rau PTMEG hauv Suav teb tau nce zuj zus, ua rau muaj kev loj hlob sai hauv kev thov rau tetrahydrofuran ib yam nkaus.
Cim npe nrov: Tuam Tshoj tetrahydrofuran manufacturers, lwm tus neeg, Hoobkas