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Environmental fate & pathways

Hydrolysis

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Description of key information

At the three pH values tested, results from the preliminary test indicated that the half-life was greater than 5 days at 50°C.

Key value for chemical safety assessment

Half-life for hydrolysis:
5 d
at the temperature of:
50 °C

Additional information

The test was run over 120 hours at pH 4.588, 7.264 and 9.236. The temperature was 50 ± 1°C.

After incubation for 120 hours (5 days), dimethyl carbonate degraded less than 10% at each pH tested, indicating that the half-life at 50°C is greater than 5 days. At the environmentally relevant temperature of 20°C, it is considered that the half-life would be much greater than 5 days and possibly longer than 1 year in the pH range 4.6 to 9.2.