Dimethyl carbonate CAS 616-38-6
Dimethyl carbonate, hu ua DMC, yog ib yam kua tsis muaj xim, pob tshab nrog ib qho tsw ntxhiab ntawm chav tsev kub. Nws qhov ceev sib piv (d204) yog 1.0694, nws lub ntsiab lus yaj yog 4 ° C, nws lub ntsiab lus kub yog 90.3 ° C, nws lub ntsiab lus flash yog 21.7 ° C (qhib) thiab 16.7 ° C (kaw), nws cov ntsuas refractive (nd20) yog 1.3687, thiab nws yog flammable thiab tsis muaj tshuaj lom. Nws tuaj yeem sib xyaw nrog yuav luag txhua yam organic solvents xws li cawv, ketones, thiab esters hauv txhua qhov sib piv thiab yog me ntsis soluble hauv dej. Nws tuaj yeem siv ua tus neeg sawv cev methylating. Piv nrog rau lwm cov neeg sawv cev methylating, xws li methyl iodide thiab dimethyl sulfate, dimethyl carbonate tsis muaj tshuaj lom thiab tuaj yeem biodegradable.
| YAM KHOOM | roj teebQIB | QIB KEV LAG LUAM | |
| Qhov tsos | Tsis muaj xim, kua pob tshab, tsis muaj cov khoom siv kho tshuab pom tseeb | ||
| Cov Ntsiab Lus ≥ | 99.99% | 99.95% | 99.9% |
| Dej noo ≤ | 0.005% | 0.01% | 0.05% |
| Cov ntsiab lus Methanol ≤ | 0.005% | 0.05% | 0.05% |
| Qhov Ceev (20 ° C) g / ml | 1.071±0.005 | 1.071±0.005 | 1.071±0.005 |
| Xim ≤ | 10 | 10 | 10 |
Dimethyl carbonate (DMC) muaj ib qho qauv molecular tshwj xeeb (CH3O-CO-OCH3). Nws cov qauv molecular muaj cov pab pawg carbonyl, methyl, methoxy thiab carbonylmethoxy. Yog li ntawd, nws tuaj yeem siv dav hauv cov tshuaj organic synthesis xws li carbonylation, methylation, methoxylation thiab carbonylmethylation. Nws muaj ntau yam kev siv. Nws feem ntau yog siv ua cov tshuaj carbonylation thiab methylation, cov roj av ntxiv, thiab cov khoom siv raw rau kev tsim cov polycarbonate (PC). Kev tsim cov DMC loj tau tsim nrog rau cov txheej txheem tsis yog phosgene synthesis ntawm polycarbonate. Nws siv yog raws li nram no:
1. Ib hom tshuaj tshiab uas tsis muaj tshuaj lom tuaj yeem hloov cov tshuaj xws li toluene, xylene, ethyl acetate, butyl acetate, acetone lossis butanone hauv kev lag luam pleev xim thiab nplaum. Nws yog ib yam khoom siv tshuaj ntsuab uas zoo rau ib puag ncig.
2. Ib tug neeg sawv cev zoo methylating, carbonylating agent, hydroxymethylating agent thiab methoxylating agent. Nws yog dav siv hauv cov teb ntawm cov khoom noj khoom haus antioxidants, cov neeg sawv cev tiv thaiv cog, thiab lwm yam. Nws yog ib qho khoom siv tshuaj lom neeg siv dav dav.
3. Ib qho kev hloov pauv zoo tagnrho rau cov tshuaj lom heev xws li phosgene, dimethyl sulfate, thiab methyl chloroformate.
4. Ua cov polycarbonate, diphenyl carbonate, isocyanate, thiab lwm yam.
5. Hauv tshuaj, nws yog siv los ua cov tshuaj tiv thaiv kev kis kab mob, tshuaj tiv thaiv kub thiab tshuaj loog, tshuaj vitamin, thiab tshuaj rau lub paj hlwb hauv nruab nrab.
6. Hauv cov tshuaj tua kab, nws feem ntau yog siv los tsim cov methyl isocyanate, thiab tom qab ntawd los tsim cov tshuaj carbamate thiab cov tshuaj tua kab (anisole).
7. Cov khoom siv ntxiv rau roj av, cov roj teeb lithium electrolytes, thiab lwm yam.
200kg/nruas
Dimethyl carbonate CAS 616-38-6
Dimethyl carbonate CAS 616-38-6
