Registration Dossier

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 18 December 2018 to 05 April 2019
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Cross-reference
Reason / purpose:
reference to same study
Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 18 December 2018 to 05 April 2019
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose:
reference to same study
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Version / remarks:
2016
Deviations:
no
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling Point)
Version / remarks:
1995
Deviations:
no
Qualifier:
according to
Guideline:
EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
Version / remarks:
1996
Deviations:
no
GLP compliance:
yes
Type of method:
differential scanning calorimetry
Key result
Decomposition:
yes
Decomp. temp.:
200 °C
Remarks on result:
other: No boiling point up to the decomposition temperature

see IUCLID 4.2 melting point

Conclusions:
Boiling of the substance was not observed below the decomposition temperature of 200°C.
Executive summary:

see IUCLID 4.2 melting point

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019
Report Date:
2019

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
2016
Deviations:
no
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
1995
Deviations:
no
Qualifier:
according to
Guideline:
EPA OPPTS 830.7200 (Melting Point / Melting Range)
Version / remarks:
1998
Deviations:
no
GLP compliance:
yes
Type of method:
differential scanning calorimetry

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
liquid: viscous
Details on test material:
Batch (Lot) Number: R18 14728
Expiry date: 08 October 2020 (expiry date)
Physical Description: Dark amber viscous liquid
Purity/Composition: UVCB
Storage Conditions: At room temperature

Results and discussion

Melting / freezing point
Key result
Melting / freezing pt.:
-79.1 °C
Decomposition:
yes
Decomp. temp.:
200 °C
Remarks on result:
other: Glass transition temperature: -79.1°C. No melting/freezing temperature between 25°C and -90°C.

Any other information on results incl. tables

DSC EXPERIMENT 1

During cooling: no effects. During heating: small effect between -90°C and -75°C followed by endothermic effect starting at 200°C.  The small effect was most likely due the glass transition. 

After the experiment, a light yellow molten residue remained in the sample container (original colour: dark amber) and a yellow residue was observed on the lid of the sample container. Due to the colour change, the endothermic effect was considered reaction and/or decomposition. DSC curve: see illustration below.

 

DSC EXPERIMENT 2

In order to investigate the small effect between -90°C and -75°C, the temperature was isothermal for 60 minutes at -90°C. During heating at 5°C/minute glass transition was observed between -90°C and -75°C with the inflection point at -79.008°C. After the experiment, the residue in the sample container was unchanged. DSC curve: see illustration below.

 

DSC EXPERIMENT 3

Experiment 3 is a duplicate of Experiment 2 and similar results were obtained. The inflection point was -79.157°C. DSC curve: see illustration below.

 

RESULT

Glass transition temperature: mean inflection point of Experiment 2 (-79.008°C) and Experiment 3 (-79.157°C).

 

Applicant's summary and conclusion

Conclusions:
A glass transition temperature of -79.1°C was determined. The substance has no melting/freezing temperature between 25°C and -90°C.
Executive summary:

Differential Scanning Calorimetry was performed. The experiments were based on EC A.1, OECD 102 and OPPTS 830.7200 (melting temperature) and on EC A.2, OECD TG 103 and OPPTS 830.722 (boiling temperature). GLP-study. The viscous substance has no melting/freezing temperature between 25°C and -90°C. The mean (n=2) glass transition temperature was determined to be -79.1°C.

Boiling of the substance was not observed below the temperature at which reaction and/or decomposition started (i.e. at 200°C).