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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Stability: thermal, sunlight, metals

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Administrative data

Endpoint:
stability: thermal, sunlight, metals, other
Remarks:
Migrated from section 'Stability: thermal, sunlight, metals'
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Basic data given. Description of the method is limited.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2004
Report date:
2004

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Differential scanning calometry (DSC) in a closed and open (air pressure 20 bar) glass crucible, heating rates 3 K/min
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Tetrachloro-p-benzoquinone
EC Number:
204-274-4
EC Name:
Tetrachloro-p-benzoquinone
Cas Number:
118-75-2
Molecular formula:
C6Cl4O2
IUPAC Name:
2,3,5,6-tetrachloro-1,4-benzoquinone

Results and discussion

For thermal stability study

Test substance thermally stable:
yes
Operating temperature
Operating temp.:
50 - 450 °C
Sublimation:
yes
Transformation products:
not specified

Any other information on results incl. tables

Beside the endothermic effect (sublimation) around 290 °C no exothermic reactions were observed up to the temperature of 450 °C.

Applicant's summary and conclusion

Conclusions:
The substance does not show an exothermic decomposition reaction up to 450 °C.
Executive summary:

The thermal stability of Chloranil (2,3,5,6-tetrachloro-1,4-benzoquinone) was determined by Differential Scanning Calorimetry (DSC) in closed and open (air pressure 20 bar) glass crucials with a heating rate of 3 K/min. Besides an endothermic effect (sublimation) around 290 °C no exothermic reactions were observed up to the temperature of 450 °C.