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Physical & Chemical properties

Dissociation constant

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Description of key information

Succinic anhydride is inherently unstable in aqueous media and rapidly hydrolyses to form succinic acid. The dissociation constant of succinic acid was reported as 4.67 at 20°C.

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The dissociation constant of succinic anhydride was determined according to OECD guideline 112. The pKaof the test material was determined using the titration method at 20+1°C. All relevant validity criteria were fulfilled. Succinic anhydride is inherently unstable in aqueous media and rapidly hydrolyzes to form succinic acid. The dissociation constant of succinic acid was reported as 4.67 at 20°C.