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Environmental fate & pathways

Hydrolysis

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Description of key information

Hydrolysis of 1,2-dichloropropane in water (pH 6.9) is slow, with a half-life of 283 months at 25 C.  The reaction is faster in seawater (pH 8.3), with a half-life of 60 months at 25 C.

Key value for chemical safety assessment

Half-life for hydrolysis:
283 mo
at the temperature of:
298 K

Additional information

The hydrolysis of 1,2-dichloropropane has been measured experimentally by Milano et al. Hydrolysis of 1,2-dichloropropane in water (pH 6.9) is slow, with a half-life of 283 months at 25 C. The corresponding neutral hydrolysis rate constant at 25 C is 3.35 x 10e-6 hr-1. Hydrolysis products detected in the reactions included 1-chloro-2-propanol and hydrochloric acid. The experimentally determined half-life for hydrolysis in water is in good agreement with values reported in several handbooks. The reaction is faster in seawater (pH 8.3), with a half-life of 60 months at 25 C.