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Physical & Chemical properties

Water solubility

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Description of key information

Succinic anhydride is hydrolytically unstable in aqueous media and rapidly forms succinic acid which has a solubility of 62.9 g/L (20 °C).

Key value for chemical safety assessment

Water solubility:
69.2 g/L
at the temperature of:
20 °C

Additional information

The water solubility of succinic acid, the hydrolysis product of succinic anhydride, was determined according to OECD guideline 105 using the flask method at 20 ± 0.5 °C and pre-incubation at 30 °C. All relevant validity criteria were fulfilled. The analytical method for determination of the test item, succinic acid, was validated and tested with satisfactory results in regard to linearity, accuracy, precision and specificity. The water solubility of succinic acid was reported as 62.9 g/L at 20 °C and pH 2.2. Succinic anhydride has been described as insoluble or very slightly soluble in water and is inherently unstable in aqueous media, rapidly hydrolyzing to form succinic acid.