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EC number: 203-603-9
CAS number: 108-65-6
Hydrolysis of propylene glycol methyl ether
acetate as a function of pH (4, 7 and 9) was performed according to the
OECD GuideLine 111 by Chemicals Evaluation and Research Institute
(1998). The test report is not available, but it was validated by the
Japanese authorities within the OECD SIDS activities. No hydrolysis
occurred in 5 days at 50°C at pH 4 and 7. At pH 9, hydrolysis rates were
determined at 60, 70 and 80°C, and it was extrapoled to 25°C using the
Arrhenius relationship. The calculated rate constant was 3.57 . 10-3. A
half life of 8.1 days can be calculated at 25°C and at pH 9. The
breakdown products were not studied. At pH 4 and 7, propylene glycol
methyl ether acetate is stable.
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