Dimethyl carbonate CAS 616-38-6
Dimethyl carbonate, nke a na-akpọ DMC, bụ mmiri mmiri na-enweghị agba, nke na-apụta ìhè, nke nwere isi na-esi ísì ụtọ n'ọnọdụ okpomọkụ ụlọ. Njupụta ya (d204) bụ 1.0694, ebe agbaze ya bụ 4°C, ebe esi ya bụ 90.3°C, ebe ọkụ ya bụ 21.7°C (mepere emepe) na 16.7°C (mechiri emechi), ihe ntụgharị ya (nd20) bụ 1.3687, ọ na-ere ọkụ ma na-adịghị 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'ókè ọ bụla ma ọ na-agbaze ntakịrị na mmiri. Enwere ike iji ya dị ka ihe na-eme ka methylating. Ma e jiri ya tụnyere ihe ndị ọzọ na-eme ka methylating, dị ka methyl iodide na dimethyl sulfate, dimethyl carbonate adịghị egbu egbu ma enwere ike imebi ya.
| IHE | BatrịỌkwa | Ọkwa ụlọ ọrụ mmepụta ihe | |
| Ọdịdị | Mmiri mmiri na-enweghị agba, na-apụta ìhè, enweghị ihe adịghị ọcha a na-ahụ anya n'ime ihe | ||
| Ọdịnaya ≥ | 99.99% | 99.95% | 99.9% |
| Mmiri mmiri ≤ | 0.005% | 0.01% | 0.05% |
| Ọdịnaya methanol≤ | 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 nhazi molekul pụrụ iche (CH3O-CO-OCH3). Nhazi molekul ya nwere otu carbonyl, methyl, methoxy na carbonylmethoxy. Ya mere, enwere ike iji ya mee ihe n'ọtụtụ ebe na mmeghachi omume organic dịka carbonylation, methylation, methoxylation na carbonylmethylation. O nwere ọtụtụ ojiji. A na-ejikarị ya eme ihe dị ka carbonylation na methylation reagent, ihe mgbakwunye petrol, na ihe eji emepụta polycarbonate (PC). Mmepụta buru ibu nke DMC etolitela yana usoro mmepụta nke polycarbonate na-abụghị phosgene. Ojiji ya bụ ndị a:
1. Ụdị ihe mgbaze ọhụrụ nke na-adịghị egbu egbu nwere ike dochie ihe mgbaze dịka toluene, xylene, ethyl acetate, butyl acetate, acetone ma ọ bụ butanone n'ime ụlọ ọrụ agba na ihe nrapado. Ọ bụ ngwaahịa kemịkalụ akwụkwọ ndụ akwụkwọ ndụ na-adịghị emebi gburugburu ebe obibi.
2. Ọ bụ ezigbo ihe na-eme ka methylating dị mma, ihe na-eme ka carbonylating dị mma, ihe na-eme ka hydroxymethylating dị mma na ihe na-eme ka methoxylating dị mma. A na-ejikarị ya eme ihe n'ihe gbasara antioxidants nri, ihe na-eme ka osisi dị mma, wdg. Ọ bụ ihe e ji emepụta kemịkalụ nke a na-ejikarị eme ihe.
3. Ihe nnọchi zuru oke maka ọgwụ ndị na-egbu egbu dị ka phosgene, dimethyl sulfate, na methyl chloroformate.
4. Jiri polycarbonate, diphenyl carbonate, isocyanate, wdg mee ihe.
5. N'ọgwụ, a na-eji ya emepụta ọgwụ mgbochi nje, ọgwụ mgbu na mgbu, ọgwụ vitamin, na ọgwụ maka sistemụ akwara etiti.
6. N'ọgwụ nje, a na-ejikarị ya emepụta methyl isocyanate, wee mepụta ụfọdụ ọgwụ carbamate na ọgwụ 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
