Ethylene carbonate

Ethylene Carbonate

Ethylene carbonate

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Description:
Ethylene carbonate is an ester of ethylene glycol and carbonic acid. At room temperature (25 °C) ethylene carbonate is a transparent crystalline solid, practically odorless and colorless, and somewhat soluble in water.. In the liquid state (m.p. 34-37 °C) it is a colorless odorless liquid.
  catalog entry at www.huntsman.com. Accessed on 2010-02-18.




Ethylene carbonate is used as a polar solvent with a molecular dipole moment of 4.9 D,
 Ralph P. Seward, Ernest C. Vieira (1958), ''The Dielectric Constants of Ethylene Carbonate and of Solutions of Ethylene Carbonate in Water, Methanol, Benzene and Propylene Carbonate''. J. Phys. Chem. volume 62 issue 1, pages 127–128. 
 Richard Payne, Ignatius E. Theodorou (1972), ''Dielectric properties and relaxation in ethylene carbonate and propylene carbonate'' J. Phys. Chem., volume 76 issue 20, pages 2892–2900. 
only 0.1 D lower than that of propylene carbonate. It can be used as a high permittivity component of electrolytes in lithium batteries.

Ethylene carbonate is also used as plasticizer, and as a precursor to vinylene carbonate, which is used in polymers and in organic synthesis.

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