Propylene Carbonate

Propylene Carbonate USP NF Grade

4-Methyl-1,3-dioxolan-2-one.Cyclic propylene carbonate [CAS 108-32-7].

Propylene Carbonate contains not less than 99.0 percent and not more than 100.5 percent of C4H6O3.Packaging and storage: Preserve in tight containers.

Identification: Infrared Absorption.Specific gravity: between 1.203 and 1.210 at 20C./u>: Gently but thoroughly mix 10 mL with 0.3 mL of saturated potassium chloride solution in a 100-mL borosilicate volumetric flask. Dilute with carbon dioxide-free water having a of 7.0 ± 0.5 to volume. Completely purge the solution by vigorous nitrogen bubbling, and continue the bubbling during the measurement. Determine the potentiometrically when the reading stabilizes: it is between 6.0 and 7.5.Residue on ignition: not more than 0.01%.