Tetrahydrofuran | 109-99-9 ib
Product Physical Data:
| Khoom npe | Tetrahydrofuran |
| Cov khoom | Cov kua tsis muaj xim tsis muaj kuab lom nrog cov ether-zoo litsw. |
| Melting Point (° C) | -108.5 |
| Boiling Point(° C) | 66 |
| Relative density (Dej = 1) | 0.89 ib |
| Relative vapor density (air = 1) | 2.5 |
| Saturated vapor siab (kPa) | 19.3 (20°C) kub |
| Thaum tshav kub kub combustion (kJ / mol) | -2515.2 |
| Qhov kub thiab txias (°C) | 268 |
| Critical siab (MPa) | 5.19 ib |
| Octanol / dej faib coefficient | 0.46 ib |
| Flash point (°C) | -14 |
| Ignition kub (°C) | 321 |
| Upper tawg txwv (%) | 11.8 ib |
| Tsawg tawg txwv (%) | 1.8 |
| Solubility | Me ntsis soluble hauv dej, soluble hauv ethanol, ether. |
Product Properties thiab Stability:
1.Colorless pob tshab kua nrog ether-zoo li tsw. Miscible nrog dej. Cov azeotropic sib tov nrog dej tuaj yeem yaj cov cellulose acetate thiab caffeine alkaloids, thiab kev ua kom tiav yog zoo dua li ntawm tetrahydrofuran ib leeg. Cov kuab tshuaj organic xws li ethanol, ether, aliphatic hydrocarbons, aromatic hydrocarbons, chlorinated hydrocarbons, thiab lwm yam tuaj yeem yaj tau zoo hauv tetrahydrofuran. Nws yog ib qho yooj yim los ua ke nrog oxidation nyob rau hauv cov huab cua los ua kom tawg peroxide. Nws yog non-corrosive rau hlau, thiab erosive rau ntau plastics thiab rubbers. Vim yog qhov kub ntawm qhov kub, qhov taw tes flash yog qhov tsawg, yooj yim rau ntes hluav taws ntawm chav tsev kub. Cov pa oxygen nyob rau hauv cov huab cua thaum lub sij hawm cia tuaj yeem tsim cov peroxide tawg nrog tetrahydrofuran. Peroxides feem ntau yuav tsim nyob rau hauv lub xub ntiag ntawm lub teeb thiab anhydrous tej yam kev mob. Yog li, 0.05% ~ 1% ntawm hydroquinone, resorcinol, p-cresol lossis ferrous ntsev thiab lwm yam tshuaj txo qis feem ntau ntxiv los ua cov tshuaj tua kab mob los tiv thaiv kev tsim cov peroxides. Cov khoom no tsis tshua muaj toxicity, tus neeg teb xov tooj yuav tsum hnav cov iav tiv thaiv.
2.Stability: ruaj khov
3. Cov tshuaj txwv tsis pub: Acids, alkali, muaj zog oxidizing tus neeg sawv cev, oxygen
6.Txoj kev zam kom tsis txhob raug: Lub teeb, huab cua
7.Polymerisation txaus ntshai: Polymerisation
Khoom siv:
1.Nws yog dav siv vim nws zoo permeability thiab diffusivity rau saum npoo thiab sab hauv ntawm resins. Nws yog siv los ua hnyav hauv cov tshuaj tiv thaiv, cov tshuaj tiv thaiv polymerisation, LiAlH4 txo cov tshuaj tiv thaiv condensation thiab esterification cov tshuaj tiv thaiv. Kev sib cais ntawm polyvinyl chloride, polyvinylidene chloride thiab lawv cov copolymers ua rau cov kua dej tsis muaj viscosity, uas feem ntau yog siv rau hauv kev tsim cov txheej txheej saum npoo, tiv thaiv txheej, nplaum thiab zaj duab xis. Nws kuj yog siv nyob rau hauv number case, xim stripper, extractant, nto kho cov tawv nqaij. Cov khoom no yog tus kheej-polymerisation thiab copolymerisation, tuaj yeem tsim polyether hom polyurethane elastomer. Cov khoom no yog ib qho tseem ceeb ntawm cov khoom siv raw, tuaj yeem npaj butadiene, nylon, polybutylene glycol ether, γ-butyrolactone, polyvinylpyrrolidone, tetrahydrothiophene thiab lwm yam. Cov khoom no kuj tseem siv tau los ua ib qho nruab nrab hauv cov organic synthesis xws li tshuaj.
2.Tetrahydrofuran muaj peev xwm yaj tag nrho cov organic tebchaw uas tsis yog polyethylene, polypropylene thiab fluorine resins, tshwj xeeb tshaj yog rau polyvinyl chloride, polyvinylidene chloride thiab butylaniline muaj zoo solubility, yog dav siv raws li ib tug reactive hnyav.
3.As ib qho hnyav hnyav, tetrahydrofuran tau nquag siv hauv cov txheej txheem saum npoo, tiv thaiv txheej, inks, extractants thiab nto kho cov tawv nqaij.
4.Tetrahydrofuran yog ib qho tseem ceeb raw khoom rau zus tau tej cov polytetramethylene ether glycol (PTMEEG) thiab ib qho hnyav hnyav rau kev lag luam kws tshuaj. Siv los ua cov kuab tshuaj rau cov khoom siv ntuj thiab hluavtaws (tshwj xeeb yog cov yas yas), kuj tseem siv rau hauv kev tsim cov butadiene, adiponitrile, adip.onitrileadipic acid,hexanediamine thiab lwm yam.
5.Siv raws li hnyav, tshuaj synthesis intermediate, analytical reagent.
Cov ntawv khaws cia khoom:
1. Khaws rau hauv qhov chaw txias, cua txias.
2. Khaws kom deb ntawm qhov hluav taws kub thiab cua sov.
3.Lub warehouse kub yuav tsum tsis pub tshaj 29 ° C.
4. Khaws lub thawv kaw, tsis tiv nrog huab cua.
5.Nws yuav tsum tau muab cais tawm ntawm cov neeg ua haujlwm oxidizing, acids,alkalis, lwm.thiab yuav tsum tsis txhob sib xyaw.
6.Ua kom tawg-pov thawj teeb pom kev zoo thiab qhov cua qhov chaw.
7. Txwv tsis pub siv cov cuab yeej siv tshuab thiab cov cuab yeej uas yooj yim los tsim cov pob zeb.
8.Qhov chaw cia khoom yuav tsum tau nruab nrog cov khoom siv kho mob thaum muaj xwm ceev thiab cov khoom siv vaj tse tsim nyog.
