▁a ▁catal yst ▁for ▁the ▁synth esis ▁of ▁dim eth yl ▁carbon ate . ▁The ▁by products ▁are ▁m eth yl - ▁and ▁N - m eth yl car b am ate ▁( the ▁latter ▁from ▁the ▁reaction ▁between ▁dim eth yl ▁carbon ate ▁and ▁m eth yl ▁car b am ate ). ▁This ▁process ▁is ▁not ▁an ▁econom ical . ▁ ▁Us es ▁Organ ic ▁carbon ates ▁are ▁used ▁as ▁sol vent s . ▁They ▁are ▁class ified ▁as ▁polar ▁sol vent s ▁and ▁have ▁a ▁wide ▁liquid ▁temperature ▁range . ▁One ▁example ▁is ▁pro py l ene ▁carbon ate ▁with ▁mel ting ▁point ▁− 5 5   ° C ▁and ▁bo iling ▁point ▁ 2 4 0   ° C . ▁Other ▁advantages ▁are ▁low ▁ec ot ox icity ▁and ▁good ▁bi ode grad ability . ▁Many ▁industrial ▁production ▁path ways ▁for ▁carbon ates ▁are ▁not ▁green ▁because ▁they ▁rely ▁on ▁ph os g ene ▁or ▁pro py l ene ▁ox ide . ▁ ▁Organ ic ▁carbon ates ▁are ▁used ▁as ▁a ▁sol vent ▁in ▁l ith ium ▁batter ies . ▁Due ▁to ▁their ▁high ▁polar ity , ▁they ▁dissol ve ▁l ith ium ▁sal ts . ▁The ▁problem ▁of ▁high ▁vis cos ity ▁is ▁circum vent ed ▁by ▁using ▁mi xt ures ▁for ▁example ▁of ▁dim eth yl ▁carbon ate , ▁di eth yl ▁carbon ate , ▁and ▁dim eth ox y ▁eth ane . ▁ ▁Cy clic ▁carbon ates ▁are ▁sus cept ible ▁to ▁polym er ization . ▁