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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Testing was conducted between 26 March 2007 and 05 May 2007.
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted to GLP and in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not effect the quality of the relevant results.

Data source

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

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
other: Differential scanning calorimetry

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
Sponsor's identification: C-Y9
Description: yellow powder
Lot number: MB-l
Date received: 06 March 2007
Storage conditions: room temperature, in the dark, over silica gel

Results and discussion

Melting / freezing point
Melting / freezing pt.:
> 350 °C
Remarks on result:
other: Decomposition from 350 °C

Any other information on results incl. tables

Thermographic Data - Determination 1:

Onset of decomposition: 350.29°C (623 K)

Extrapolated onset of decomposition: 370.22°C (643 K)

Peak decomposition: 380.72°C (654 K)

Thermographic Data - Determination 2:

Onset of decomposition: 350.17°C (623 K)

Extrapolated onset of decomposition: 372.80°C (646 K)

Peak decomposition: 380.72°C (656 K)

Similar thermographic profiles were obtained using air and nitrogen atmospheres; this indicates that the observed decomposition in both determinations is probably thermal and not oxidative.

The test material has been determined to decompose from 623 ± 0.5 K. As the test material decomposed, no value for the melting temperature could be determined.

Applicant's summary and conclusion

Conclusions:
The test material has been determined to decompose from 623 ± 0.5 K. As the test material decomposed, no value for the melting temperature could be determined.
Executive summary:

MeltinglFreezing Temperature.

Decomposed from 623 ± 0.5K.As the test material decomposed, no value for melting temperature could be determined, by differential scanning calorimetry, using ASTM E537-86, Method Al of Commission Directive 92/69/EEC and Method 102 of the DECD Guidelines for Testing of Chemicals, 27 July 1995.