I-Dimethyl carbonate CAS 616-38-6

Isithombe Esifakiwe se-Dimethyl carbonate CAS 616-38-6

I-CAS:616-38-6

Ubumsulwa:99%

Ifomula Yamamolekyuli:C3H6O3

Isisindo sama-molecule:90.08

I-EINECS:210-478-4

Isikhathi Sokugcina:iminyaka engu-2

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

Shiya Umlayezo Wakho

Imininingwane Yomkhiqizo

Landa

Amathegi Omkhiqizo

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

I-Dimethyl carbonate, ebizwa ngokuthi i-DMC, iwuketshezi olungenambala, olusobala olunephunga elimnandi ekushiseni kwegumbi. Ubuningi bayo obuhlobene (d204) bungu-1.0694, iphuzu layo lokuncibilika lingu-4°C, iphuzu layo lokubila lingu-90.3°C, iphuzu layo lokusha lingu-21.7°C (livuliwe) kanye no-16.7°C (livaliwe), inkomba yayo yokubuyisa (nd20) ingu-1.3687, futhi iyasha futhi ayinabo ubuthi. Ingaxutshwa cishe nazo zonke izinyibilikisi eziphilayo ezifana nama-alcohols, ama-ketone, nama-ester nganoma yisiphi isilinganiso futhi incibilika kancane emanzini. Ingasetshenziswa njenge-ejenti ye-methylating. Uma iqhathaniswa nezinye izinto ze-methylating, njenge-methyl iodide kanye ne-dimethyl sulfate, i-dimethyl carbonate ayinabo ubuthi futhi ingabola.

Imininingwane

ITEM	IBHETRIIBANGA	IBANGA LEMBONINI
Ukubukeka	Uketshezi olungenambala, olusobala, olungenazo izinto ezingcolisayo ezibonakalayo
Okuqukethwe ≥	99.99%	99.95%	99.9%
Umswakama ≤	0.005%	0.01%	0.05%
Okuqukethwe kwe-Methanol≤	0.005%	0.05%	0.05%
Ubuningi (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 sama-molecule esiyingqayizivele (CH3O-CO-OCH3). Isakhiwo sayo sama-molecule siqukethe amaqembu e-carbonyl, methyl, methoxy kanye ne-carbonylmethoxy. Ngakho-ke, ingasetshenziswa kabanzi ekusabeleni kokwenziwa kwezinto eziphilayo njenge-carbonylation, i-methylation, i-methoxylation kanye ne-carbonylmethylation. Inezinhlobo eziningi zokusetshenziswa. Isetshenziswa kakhulu njenge-carbonylation kanye ne-methylation reagent, isithasiselo sikaphethiloli, kanye nezinto zokusetshenziswa zokwenziwa kwe-polycarbonate (PC). Ukukhiqizwa okukhulu kwe-DMC kuthuthukile kanye nenqubo yokwenziwa kwe-polycarbonate okungeyona i-phosgene. Ukusetshenziswa kwayo kungokulandelayo:

1. Uhlobo olusha lwesinyibilikisi esinobuthi obuphansi lungathatha indawo yezinyibilikisi ezifana ne-toluene, i-xylene, i-ethyl acetate, i-butyl acetate, i-acetone noma i-butanone embonini yopende ne-adhesive. Luwumkhiqizo wamakhemikhali oluhlaza okwesibhakabhaka onobungani nemvelo.

2. I-ejenti enhle yokwenza i-methyl, i-ejenti yokwenza i-carbonylating, i-ejenti yokwenza i-hydroxymethylating kanye ne-ejenti yokwenza i-methoxylating. Isetshenziswa kabanzi emikhakheni yama-antioxidants okudla, ama-ejenti okuvikela izitshalo, njll. Iyinto eluhlaza yamakhemikhali esetshenziswa kabanzi.

3. Indawo engcono kakhulu yokufaka esikhundleni semithi enobuthi obukhulu njenge-phosgene, i-dimethyl sulfate, kanye ne-methyl chloroformate.

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

5. Kwezokwelapha, isetshenziselwa ukuhlanganisa imithi yokulwa nokutheleleka, imithi yokulwa nokuvuvukala kanye nemithi yokunciphisa ubuhlungu, imithi yamavithamini, kanye nemithi yesimiso sezinzwa esiyinhloko.

6. Ezibulala-zinambuzane, isetshenziswa kakhulu ukukhiqiza i-methyl isocyanate, bese ikhiqiza imithi ethile ye-carbamate kanye nemithi yokubulala izinambuzane (i-anisole).

7. Izithasiselo zephethiloli, ama-electrolyte ebhethri le-lithium, njll.