Registration Dossier

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Testing was conducted between 1st September to 10th October 2005
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Meets the criteria for classification as Reliable without restriction according to Klimisch et al (1997)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2005
Report Date:
2005

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: 92/69/EEC, A1 (Differential Scanning Calorimetry Method)
GLP compliance:
yes
Type of method:
other: Differential scanning calorimetry

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Melting / freezing point
Melting / freezing pt.:
> 300 °C
Atm. press.:
> 100 - < 101 kPa
Decomp. temp.:
> 300 °C

Any other information on results incl. tables

The substance has been determined to decompose from approximately 300 deg C at 100.70 to 100.71 kpa. Similar themographic profiles were obtained using air and nitrogen atmospheres; this indicates that the observed decomposition in both determinations is probably thermal and not oxidative.Interpretation onset of gradual decomposition

The endotherm present at approximately 160°C is due to a loss of volatiles. A visual assessment was performed on the test material to aid in DSC interpretation. Vapour droplets were evident at this temperature and no phase transition of the test material occurred.

Applicant's summary and conclusion

Conclusions:
The test material has been determined to decompose from approximately 573 K at 100.70 to 100.71 kPa. As the test material decomposed prior to melting, no value for boiling temperature was determined or required.
Executive summary:

Introduction

The determination was carried out by differential scanning calorimetry (DSC) using the procedure specified in ASTM E537-86, Methods A1 and A2 of Commission Directive 92/69/EEC (which constitutes Annex V of Council Directive 671548lEEC)

Results and conclusion

The test material has been determined to decompose from approximately 573 K at 100.70 to 100.71 kPa. As the test material decomposed prior to melting, no value for boiling temperature was determined or required.