Cov khoom
1,2-Diformyloxyethane
Diformyloxyethane Cov ntaub ntawv yooj yim
| Boiling point | 174-178 ° C (lit.) |
| ceev | 1.226 g / mL ntawm 20 ° C (lit.) |
| vapor siab | 1.72 hPa ntawm 25 ℃ |
| Refractive Index | n20/D 1.415 |
| LogP | -0.69 |
| CAS DataBase Reference | 629-15-2 (CAS DataBase Reference) |
| NIST Chemistry Reference | 1,2-Ethanediol diformate (629-15-2) |
| EPA Tshuaj Registry System | 1,2-Ethanediol, 1,2-diformate (629-15-2) |
Product Description
1,2-Diformyloxyethane, tseem hu ua acetoacetaldehyde los yog acetate acetaldehyde, yog cov tshuaj sib xyaw nrog cov mis molecular C4H6O3.Nws yog ib qho acetal compound uas muaj ob pawg formyl (aldehyde) sib koom ua ke rau lub hauv paus oxygen atom.1,2-Diformyloxyethane tuaj yeem ua ke los ntawm reacting formaldehyde (CH2O) nrog acetaldehyde (C2H4O) nyob rau hauv muaj cov kua qaub catalyst.Nws yog cov kua uas tsis muaj xim nrog cov ntxhiab tsw qab.1,2-Diformyloxyethane tuaj yeem siv los ua ib qho nruab nrab hauv cov organic synthesis thiab ua cov kuab tshuaj los yog cov tshuaj reagent hauv qee cov tshuaj tiv thaiv.Nws tseem tuaj yeem siv los ua tus neeg sawv cev flavoring hauv kev lag luam zaub mov.Txawm li cas los xij, nws yog ib qho tseem ceeb heev uas yuav tau ua cov tshuaj no nrog kev saib xyuas zoo vim tias nws yog nplaim taws thiab tuaj yeem ua rau lub qhov muag, tawv nqaij thiab ua pa yog tias tsis ua haujlwm zoo.
Cov ntaub ntawv kev nyab xeeb
| Hazard Codes | Xn |
| Risk Statements | 22-41 : kuv |
| Cov lus hais txog kev nyab xeeb | 26-36 : kuv |
| WGK Germany | 3 |
| RTECS | KW5250000 |
Kev siv Diformyloxyethane thiab Synthesis
| Chemical Properties | Dej-dawb kua.hydrolyzes maj mam, liberating formic acid.Soluble hauv dej, cawv thiab ether.Hluav taws kub. |
| Siv | Embalming kua. |
| Kev piav qhia dav dav | Cov kua dej dawb.Ntau ntom dua dej.Flash point 200 ° F.Tej zaum yuav muaj tshuaj lom los ntawm kev noj.Siv nyob rau hauv embalming kua. |
| Cua & Dej Reactions | Soluble hauv dej. |
| Reactivity Profile | 1,2-Diformyloxyethane reacts exothermically nrog acids.Nrog muaj zog oxidizing acids;Cov cua sov tuaj yeem cuam tshuam cov khoom siv tshuaj tiv thaiv.Kuj reacts exothermically nrog cov kev daws teeb meem.Tsim cov hydrogen nrog cov muaj zog txo cov neeg ua haujlwm (alkali hlau, hydrides). |
| Hazard | Toxic los ntawm kev noj. |
| Health Hazard | Kev nqus tau los yog sib cuag nrog cov khoom yuav ua rau khaus lossis hlawv tawv nqaij thiab qhov muag.Hluav taws yuav ua rau khaus, corrosive thiab/los yog cov pa phem.Vapors tuaj yeem ua rau kiv taub hau lossis ua tsis taus pa.Cov dej ntws los ntawm kev tswj hluav taws kub lossis dej dilution tuaj yeem ua rau muaj kuab paug. |
| Flammability thiab Explosibility | Nonflammable |
| Kev ruaj ntseg Profile | Tshuaj lom los ntawm kev noj tshuaj.Qhov muag mob heev.Flammable thaum raug tshav kub los yog nplaim taws;tuaj yeem cuam tshuam nrog oxidizing cov ntaub ntawv.Txhawm rau tua hluav taws, siv CO2, tshuaj qhuav qhuav.Thaum rhuab mus rau decomposition nws emissions pa luam yeeb thiab irritating fumes. |
