Registration Dossier

Administrative data

Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
18 January 2018 - 09 February 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Cross-reference
Reason / purpose:
reference to same study
Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
18 January 2018 - 09 February 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reference:
Composition 0
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 information:
Composition 1
Key result
Melting / freezing pt.:
< -20 °C
Atm. press.:
>= 1 003 - <= 1 027 hPa
Decomposition:
no
Remarks on result:
other: Glass transition point: -74.9°C. No melting/freezing point was determined between 25°C and -90°C.

TGA EXPERIMENT (PRELIMINARY TEST)

Significant decrease of weight from 225°C. 25% weight loss at 285°C and 70% weight loss at 305°C.

After the experiment it was observed that the test item was evaporated from the sample container.

 

DSC EXPERIMENT 1

During cooling, a glass transition was observed between -90°C and -70°C. During heating, a glass transition was observed between -90°C and -50°C. The inflection point of the glass transition was -74.884°C. An endothermic peak was observed between 200°C and 350°C. The extrapolated onset temperature of the peak was 299.150°C. The endothermic effect was most likely obtained due to boiling of the test item. After the experiment it was observed that the test item had evaporated from the sample container.

DSC EXPERIMENT 2

In order to investigate the endothermic peak, a higher heating rate of 50°C/minute was used in the Experiment 2. The extrapolated onset temperature was 302.285°C. The endothermic peak had not shifted significantly to higher temperatures. It demonstrated that boiling of the test item caused the endothermic effect. Since a higher heating rate was applied during this experiment, the extrapolated onset temperature was not used in the calculation of the boiling temperature. After the experiment it was observed that the test item had evaporated from the sample container.

DSC EXPERIMENT 3

Experiment 3 was performed as a duplicate of Experiment 1. Similar results as in Experiment 1 were obtained. The inflection point of the glass transition was -74.996°C. The extrapolated onset of the boiling peak was 299.920°C. After the experiment it was observed that the test item had evaporated from the sample container.

DATA HANDLING

The glass transition temperature was determined as the mean inflection point of Experiment 1 and Experiment 3.

 

Conclusions:
A glass transition temperature of -74.9°C was determined. The substance has no melting/freezing temperature between 25°C and -90°C.
Executive summary:

Differential Scanning Calorimetry (DSC) experiments were performed in a GLP study according to EC A.1, OECD 102 and OPPTS 830.7200.

The liquid substance has no melting/freezing temperature between 25°C and -90°C. From duplicate measurements the mean glass transition temperature was determined to be -74.9°C.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report Date:
2018

Materials and methods

Test guidelineopen allclose all
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

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
liquid
Details on test material:
Physical appearance: colourless to pale yellow liquid
Storage conditions: at room temperature protected from light, container flushed with nitrogen.

Results and discussion

Boiling point
Key result
Boiling pt.:
299.5 °C
Atm. press.:
>= 1 003 - <= 1 027 hPa
Decomposition:
no

Any other information on results incl. tables

The boiling temperature was determined as the mean extrapolated onset temperature of Experiment 1 (299.15°C) and Experiment 3 (299.20°C).

Applicant's summary and conclusion

Conclusions:
The boiling temperature was determined to be 299.5°C ( at 1015 ± 12 hPa).
Executive summary:

The boiling temperature of the substance was determined using Differential Scanning Calorimetry in a GLP study according to EC A.2, OECD 103 and OPPTS 830.7220.

From duplicate experiments, the boiling temperature was determined to be 299.5°C ( at 1015 ± 12 hPa).