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EC number: 201-152-2 | CAS number: 78-87-5
Hydrolysis
Administrative data
Link to relevant study record(s)
- Endpoint:
- hydrolysis
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2003
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Method not available
- GLP compliance:
- not specified
- Transformation products:
- no
- Remarks:
- no transformation product
- pH:
- 7
- Temp.:
- 25 °C
- DT50:
- 15.8 yr
- pH:
- 9
- Temp.:
- 25 °C
- DT50:
- 15.8 yr
- Conclusions:
- T 1/2 pH 7: ca.15.8 year at 25°C
T 1/2 pH 9: ca.15.8 year at 25°C
Reference
Description of key information
Key value for chemical safety assessment
- Half-life for hydrolysis:
- 15.8 yr
- at the temperature of:
- 25 °C
Additional information
A hydrolysis constant of 5.0 x 10-6 per hours (pH 7-9, 25°C) with a calculated half-life of 15.8 yr, has been derived for 1,2-dichloropropane in water (MacKayet al., 1993). Therefore the substance shows a very good stability in water as it is not subject to any abiotic degradation (hydrolysis), unless in a very long time.
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