Registration Dossier
Registration Dossier
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EC number: 291-001-7 | CAS number: 90295-11-7
Stability: thermal, sunlight, metals
Administrative data
- Endpoint:
- stability: thermal, sunlight, metals, other
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- other: The test method is commonly used in other than REACH Regulation context for the thermal stability characterization and it can be considered as scientifically acceptable. Nevertheless, only the test sheet is available.
Data source
Reference
- Reference Type:
- other company data
- Title:
- Unnamed
- Year:
- 2 008
- Report date:
- 2008
Materials and methods
- Principles of method if other than guideline:
- The air dependence of the thermal decomposition was determined using the RADEX test dynamically with air flush.
- GLP compliance:
- not specified
Test material
- Reference substance name:
- Direct Blue 199 Na
- IUPAC Name:
- Direct Blue 199 Na
Constituent 1
Results and discussion
For thermal stability study
Operating temperatureopen allclose all
- Operating temp.:
- 255 °C
- Remarks on result:
- other: Start of exothermic reaction under open air and air-flow conditions
- Operating temp.:
- 245 °C
- Remarks on result:
- other: Start of exothermic reaction under closed air conditions
- Operating temp.:
- > 350 °C
- Remarks on result:
- other: Start of exothermic reaction under Argon flow conditions
Any other information on results incl. tables
Decomposition energy under open air conditions > 240 J/g
Decomposition energy under closed air conditions > 230 J/g
Spontaneous exothermic reaction: none
Exothermic reaction air independent: yes; in air flow condition stronger than without active O2-supply
Start of endothermic reaction: 70 °C; evaporation of H2O solvent
Sample after the experiment: not evaluated
Applicant's summary and conclusion
- Conclusions:
- The test substance decomposes at 255 °C, under air conditions. The exothermic reaction was judjed as air-independent and in air-flow conditions it resulted stronger than without active O2-supply. Start of endothermic reaction was recorded at 70 °C, observing the evaporation of H2O solvent.
- Executive summary:
The air dependence of the thermal decomposition was determined using the RADEX test dynamically with air flush.
The start of exothermic reaction under open air conditions was recorded 255 °C (decomposition energy greater than 24 J/g), while under closed air conditions the start of exothermic reaction was recorded at 240 °C (decomposition evergy grater than 230 J/g). The exothermic reaction was judjed as air-independent and in air-flow conditions it resulted stronger than without active O2-supply. Start of endothermic reaction was recorded at 70 °C, observing the evaporation of H2O solvent.
Conclusion
The test substance decomposes at 255 °C, under air conditions. The exothermic reaction was judjed as air-independent and in air-flow conditions it resulted stronger than without active O2-supply. Start of endothermic reaction was recorded at 70 °C, observing the evaporation of H2O solvent.
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