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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Hydrolysis

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Administrative data

Link to relevant study record(s)

Reference
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

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.