Registration Dossier

Physical & Chemical properties

Stability: thermal, sunlight, metals

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Administrative data

Endpoint:
stability: thermal, sunlight, metals, other
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
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. The original report is no more available and many information are missing.
Justification for type of information:
REPORTING FORMAT FOR THE ANALOGUE APPROACH
The usage of information on Direct Blue 199_Na, which has the same main component and with a different counter ion, can be considered as suitable and appropriated because the difference in salification is expected to not influence the characteristics related to the specific end-point.
The impurity profile does not impact on the read across proposed. Details on the approach followed are included in the document attached to the IUCLID section 13.
Cross-reference
Reason / purpose:
other: The test was performed for the same purpose of the Multi-radex dynamic test. A comparison between decomposition reactions was performed in order to reach a conclusion.

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2008
Report Date:
2008

Materials and methods

Principles of method if other than guideline:
The air dependence of the thermal decomposition was determined in a long-term test, using RADEX open air apparatus.
GLP compliance:
not specified

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

For thermal stability study

Operating temperature
Operating temp.:
230 °C
Remarks on result:
other: The substance decomposition resulted delayed; during the test the substance appeared unchanged.

Applicant's summary and conclusion

Conclusions:
The substance decomposition resulted delayed in the long-term assay performed at the temperature of 230 °C (16 hrs) and the substance appeared unchanged.
Executive summary:

The air dependence of the thermal decomposition was determined in a long-term test, using RADEX open air apparatus.

The long-term assessment was performed in open air, at 230 °C, over a period of 16 hours, in a Radex apparatus. The substance decomposition resulted delayed; during the test the substance appeared unchanged.

Discussion and conclusion

The substance decomposition resulted delayed in the long-term assay performed at the temperature of 230 °C (16 hrs) and the substance appeared unchanged.