Registration Dossier
Registration Dossier
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EC number: 201-579-4 | CAS number: 85-00-7
Stability: thermal, sunlight, metals
Administrative data
- Endpoint:
- thermal stability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 26 Jan 2021 to 03 Feb 2021
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 021
- Report date:
- 2021
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: ASTM E537 for Differential Scanning Calorimetry
- GLP compliance:
- yes
Test material
- Reference substance name:
- Diquat dibromide
- EC Number:
- 201-579-4
- EC Name:
- Diquat dibromide
- Cas Number:
- 85-00-7
- Molecular formula:
- C12H12N2.2Br
- IUPAC Name:
- 1,1'-ethylene 2,2'-bipyridyldiylium dibromide
Constituent 1
Results and discussion
For thermal stability study
- Test substance thermally stable:
- yes
Any other information on results incl. tables
The test was carried out in duplicate. Both thermograms are very similar, showing a series of endothermic and exothermic peaks over the range 171 - 384 °C, with the largest exothermic peak occurring at 348 - 349 °C. The total normalized energy output from the exothermic peaks, i.e. the heat of decomposition, is
Run 1: 262 J/g.
Run 2: 267 J/g,
giving an average of 265 J/g.
Applicant's summary and conclusion
- Conclusions:
- The heat of decomposition of the test substance = 265 J/g.
- Executive summary:
In a study performed under GLP in accordance with ASTM E537 using Differential Scanning Calorimetry (DSC) the heat of decomposition of the test material was determined to be 265 J/g.
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