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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
stability: thermal, sunlight, metals, other
Remarks:
Migrated from section 'Stability: thermal, sunlight, metals'
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP Guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2007
Report date:
2007

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 113 (Screening Test for Thermal Stability and Stability in Air)
Deviations:
no
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Diuron
EC Number:
206-354-4
EC Name:
Diuron
Cas Number:
330-54-1
Molecular formula:
C9H10Cl2N2O
IUPAC Name:
3-(3,4-dichlorophenyl)-1,1-dimethylurea
Details on test material:
- Name of test material (as cited in study report): Diuron tech.
- Analytical purity: 98.8 %

Results and discussion

For thermal stability study

Test substance thermally stable:
yes

Any other information on results incl. tables

The DSC-measurement in a closed glass crucible showed an endothermic effect (melting) in the temperature range 145 - 170 °C and an exothermic decomposition in the temperature range 325 - 400 °C with an energy of 933 J/g.

Applicant's summary and conclusion

Executive summary:

Thermal stability of diuron was investigated by Differential scanning calorimetry according to OECD Guideline 113.

The DSC-measurement in a closed glass crucible showed an endothermic effect (melting) in the temperature range 145 - 170 °C and an exothermic decomposition in the temperature range 325 - 400 °C with an energy of 933 J/g. (Krack, 2007)