Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
hydrolysis
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: peer reviewed in HSDB 2009-08-20

Data source

Reference
Reference Type:
review article or handbook
Title:
Handbook of Chemical PropertyEstimation Methods,
Author:
Lyman, W. J. et al.
Year:
1990
Bibliographic source:
Amer. Chem. Society,Washington, DC pp. 7-4,

Materials and methods

Principles of method if other than guideline:
not reported
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
2,5-dichlorophenol
EC Number:
209-520-4
EC Name:
2,5-dichlorophenol
Cas Number:
583-78-8
Molecular formula:
C6H4Cl2O
IUPAC Name:
2,5-dichlorophenol
Constituent 2
Reference substance name:
Phenol, 2,5-dichloro-
IUPAC Name:
Phenol, 2,5-dichloro-
Test material form:
not specified
Radiolabelling:
not specified

Study design

Analytical monitoring:
not specified
Estimation method (if used):
Estimated on chemical principles based on absence of groups susceptible to hydrolysis
Duration of testopen allclose all
Duration:
1 yr
pH:
4
Duration:
1 yr
pH:
7
Duration:
1 yr
pH:
9

Results and discussion

Transformation products:
not specified

Any other information on results incl. tables

This material has no groups that are susceptible to hydrolysis in the pH 4 to 9 range; therefore, it is considered stable to hydrolysis in surface and groundwater. It is estimated to have a hydrolysis half-life of greater than one year between pH 4 and pH 9.
The estimation program in EPIWIN 4.1 has no capability to estimate hydrolysis rates for this compound.

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified
Executive summary:

The substance is stable in water due to absence of groups susceptible to hydrolysis.

Half time at pH 4; 7; 11: >1 Year

.