Registration Dossier

Administrative data

Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Cross-reference
Reason / purpose:
reference to same study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2015

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Qualifier:
according to
Guideline:
EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
Principles of method if other than guideline:
/
GLP compliance:
yes (incl. certificate)
Type of method:
differential scanning calorimetry

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
liquid: viscous
Details on test material:
>99 wt%

Results and discussion

Boiling point
Decomposition:
yes
Decomp. temp.:
> 250 °C
Remarks on result:
other: Boiling of the test substance was not observed below the temperature at which reaction and/or decomposition started.

Any other information on results incl. tables

1. Preliminary study

From 275°C upwards the weight of the sample decreased significantly. At 351°C the sample weight had decreased by 25%.

 

After the experiment, a black residue remained in the sample container (original colour: yellow). The change of the colour indicated reaction and/or decomposition of the test substance.

 

2.    Main study

During cooling, a glass transition was observed between -50°C and -20°C (results are archived in the raw data). During heating,aglass transition between -50°C and 0°C was observed. The inflection point of the glass transition was -29.87°C. An endothermic effect was observed between 250°C and 350°C. The effect was due to reaction and/or decomposition of the test substance. After the experiment, a red/brown residue remained in the sample container.

 

Experiment 2 was performed to determine the duplicate melting temperature of the test substance. The temperature program was similar as the program of Experiment 1.Figure6shows the DSC-curve obtained. Similar results as with Experiment 1 were obtained. The inflection point of the glass transition was -29.72°C.After the experiment, a red/brown residue remained in the sample container.

 

The melting temperature (glass transition) was determined as the average melting temperature obtained from Experiment 1 (-29.87°C) and Experiment 2 (-29.72°C).

Applicant's summary and conclusion

Conclusions:
Reaction and/or decomposition of V125226 was observed during DSC experiments at temperatures of > 250°C (> 523K). Boiling of the test substance was not observed below the temperature at which reaction and/or decomposition started. Based on this, the test substance has no boiling temperature.