Dimethyl carbonate CAS 616-38-6
Dimethyl carbonate, nke a na-akpọ DMC, bụ mmiri na-enweghị ụcha, nke nwere isi na-esi ísì ụtọ n'ime ụlọ. Njupụta ya (d204) bụ 1.0694, ebe mgbaze ya bụ 4°C, ebe isi ya bụ 90.3°C, ebe ọkụ ọkụ ya bụ 21.7°C (emeghe) na 16.7°C (mechiri emechi), ndenye ntugharị ya (nd20) bụ 1.3687, ọ naghịkwa egbu egbu. Enwere ike ịgwakọta ya na ihe fọrọ nke nta ka ọ bụrụ ihe mgbaze organic niile dị ka alcohols, ketones, na esters n'ụzọ ọ bụla ma na-agbaze ntakịrị na mmiri. Enwere ike iji ya dị ka onye na-ahụ maka methylating. E jiri ya tụnyere ndị ọrụ methylating ndị ọzọ, dị ka methyl iodide na dimethyl sulfate, dimethyl carbonate adịghị egbu egbu ma nwee ike imebi ya.
| ITEM | BatrịỌkwa | Ọkwa ụlọ ọrụ | |
| Ọdịdị | Mmiri na-enweghị agba, enweghị atụ, adịghị arụ ọrụ arụrụ arụ a na-ahụ anya | ||
| Ọdịnaya ≥ | 99.99% | 99.95% | 99.9% |
| Mmiri ≤ | 0.005% | 0.01% | 0.05% |
| Methanol ọdịnaya≤ | 0.005% | 0.05% | 0.05% |
| Njupụta (20°C) g/ml | 1.071± 0.005 | 1.071± 0.005 | 1.071± 0.005 |
| Agba≤ | 10 | 10 | 10 |
Dimethyl carbonate (DMC) nwere usoro ihe omimi pụrụ iche (CH3O-CO-OCH3). Ọdịdị molekụla ya nwere carbonyl, methyl, methoxy na carbonylmethoxy otu. Ya mere, enwere ike iji ya mee ihe na mmeghachi omume mmeghachi omume nke organic dị ka carbonylation, methylation, methoxylation na carbonylmethylation. Ọ nwere ọtụtụ ihe eji eme ya. A na-ejikarị ya eme ihe dị ka carbonylation na methylation reagent, mmanụ ụgbọala mgbakwunye, na akụrụngwa maka synthesizing polycarbonate (PC). A na-emepụta nnukwu mmepụta nke DMC yana usoro njikọ nke na-abụghị phosgene nke polycarbonate. Ojiji ya bụ ndị a:
1. Ụdị ọhụrụ nke obere ihe mgbaze na-egbu egbu nwere ike dochie ihe mgbaze dị ka toluene, xylene, ethyl acetate, butyl acetate, acetone ma ọ bụ butanone na agba na ụlọ ọrụ ntanye. Ọ bụ ngwaahịa kemịkalụ ndụ ndụ na gburugburu ebe obibi.
2. Onye na-ahụ maka methylating dị mma, onye na-ahụ maka carbonylating, onye na-ahụ maka hydroxymethylating na onye ọrụ methoxylating. Ọ na-ọtụtụ-eji na ubi nke nri antioxidants, osisi nchebe mmadụ, wdg Ọ bụ ọtụtụ-eji chemical akụrụngwa.
3. Ihe kachasị mma maka ọgwụ ndị na-egbu egbu dị ka phosgene, dimethyl sulfate, na methyl chloroformate.
4. Synthesize polycarbonate, diphenyl carbonate, isocyanate, wdg.
5. Na nkà mmụta ọgwụ, a na-eji ya na-emepụta ọgwụ ndị na-adịghị mma, ọgwụ antipyretic na analgesic, vitamin ọgwụ, na ọgwụ maka usoro nhụjuanya nke etiti.
6. Na pesticides, a na-ejikarị emepụta methyl isocyanate, wee mepụta ụfọdụ ọgwụ carbamate na ụmụ ahụhụ (anisole).
7. Ihe mgbakwunye mmanụ ụgbọala, electrolytes batrị lithium, wdg.
200kg / drum
Dimethyl carbonate CAS 616-38-6
Dimethyl carbonate CAS 616-38-6
