I-Dimethyl carbonate CAS 616-38-6

I-CAS:616-38-6

Ubumsulwa:99%

I-Molecular Formula:I-C3H6O3

Isisindo se-Molecular:90.08

I-EINECS:210-478-4

Isikhathi Sokugcina:iminyaka engu-2

Omqondofana:i-methylcarbonate((meo)2co); I-DIMETHYL CARBONATE; I-CARBONIC ACID DIMETHYL ESTER; I-METHYL CARBONATE; i-dimetyl carbonate; I-DIMETHYL CARBONATE, 99+%, ANHYDROUS; I-DIMETHYL CARBONATE, REAGENTPLUS, 99%; I-DimethylCarbonateForSynthesis

Shiya Umlayezo Wakho

Imininingwane Yomkhiqizo

Landa

Omaka bomkhiqizo

Iyini i-Dimethyl carbonate CAS 616-38-6?

I-Dimethyl carbonate, ebizwa ngokuthi i-DMC, iwuketshezi olungenambala, olusobala olunephunga elimnandi ekamelweni lokushisa. Ukuminyana kwayo okuhlobene (d204) ngu-1.0694, indawo yayo encibilikayo ingu-4°C, indawo yokubila kwayo ingu-90.3°C, iphoyinti layo elikhanyayo lingama-21.7°C (livuliwe) no-16.7°C (livaliwe), inkomba yayo yokugqabuka (nd20) ingu-1.3687, futhi ayinabuthi. Ingaxutshwa cishe nazo zonke izincibilikisi eziphilayo ezifana notshwala, ama-ketone, nama-ester kunoma iyiphi ingxenye futhi inyibilika kancane emanzini. Ingasetshenziswa njenge-ejenti ye-methylating. Uma iqhathaniswa namanye ama-ejenti e-methylating, njenge-methyl iodide ne-dimethyl sulfate, i-dimethyl carbonate ayinabo ubuthi obuncane futhi ingacekelwa phansi.

Ukucaciswa

ITEM	IBHETHIIGREYIDI	IBANGA LEZIMBUNDU
Ukubukeka	Uketshezi olungenambala, olusobala, akukho ukungcola okubonakalayo
Okuqukethwe ≥	99.99%	99.95%	99.9%
Umswakama ≤	0.005%	0.01%	0.05%
Okuqukethwe kwe-Methanol≤	0.005%	0.05%	0.05%
Ukuminyana (20°C)g/ml	1.071±0.005	1.071±0.005	1.071±0.005
Umbala≤	10	10	10

Isicelo

I-Dimethyl carbonate (DMC) inesakhiwo esiyingqayizivele samangqamuzana (CH3O-CO-OCH3). Isakhiwo sayo samangqamuzana siqukethe amaqembu e-carbonyl, i-methyl, i-methoxy kanye ne-carbonylmethoxy. Ngakho-ke, ingasetshenziswa kabanzi ekuphenduleni kwe-organic synthesis njenge-carbonylation, i-methylation, i-methoxylation ne-carbonylmethylation. Inokusetshenziswa okubanzi kakhulu. Isetshenziswa kakhulu njenge-carbonylation kanye ne-methylation reagent, isengezo sikaphethiloli, kanye nezinto ezingavuthiwe zokwenziwa kwe-polycarbonate (PC). Ukukhiqizwa kwezinga elikhulu kwe-DMC sekuthuthukile kanye nenqubo ye-non-phosgene synthesis ye-polycarbonate. Ukusetshenziswa kwayo kungokulandelayo:

1. Uhlobo olusha lwe-solvent enobuthi obuphansi lungangena esikhundleni sezincibilikizi ezifana ne-toluene, i-xylene, i-ethyl acetate, i-butyl acetate, i-acetone noma i-butanone ezimbonini zikapende nezinamathelayo. Kungumkhiqizo wamakhemikhali aluhlaza ovumelana nemvelo.

2. I-ejenti enhle ye-methylating, i-carbonylating agent, i-hydroxymethylating agent kanye ne-methoxylating agent. Isetshenziswa kabanzi emikhakheni yama-antioxidants okudla, ama-agent okuvikela izitshalo, njll. Kuyinto esetshenziswa kabanzi ngamakhemikhali aluhlaza.

3. Indawo ekahle yezidakamizwa ezinobuthi obuphezulu njenge-phosgene, i-dimethyl sulfate, ne-methyl chloroformate.

4. Hlanganisa i-polycarbonate, i-diphenyl carbonate, i-isocyanate, njll.

5. Kwezokwelapha, isetshenziselwa ukuhlanganiswa kwezidakamizwa ezilwa namagciwane, izidakamizwa ze-antipyretic kanye ne-analgesic, izidakamizwa zamavithamini, nezidakamizwa zesimiso sezinzwa esimaphakathi.

6. Kumithi yokubulala izinambuzane, isetshenziselwa ikakhulukazi ukukhiqiza i-methyl isocyanate, bese ukukhiqiza izidakamizwa ezithile ze-carbamate nama-insecticides (anisole).

7. Izithasiselo zikaphethiloli, i-lithium battery electrolyte, njll.