Registration Dossier

Administrative data

Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

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

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling Point)
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
GLP compliance:
yes
Type of method:
differential scanning calorimetry

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: crystalline
Specific details on test material used for the study:
Batch number: 2016110462

Results and discussion

Boiling point
Boiling pt.:
350 °C
Decomposition:
yes
Decomp. temp.:
350 °C

Any other information on results incl. tables

Results

 

The test was conducted using an open Aluminium Standard 40mL crucible, which is suitable to investigate in detail the various changes which occur by heating the sample up to 600°C.

 

Using the internal balance, an aliquot of test item was weighed into the crucible. The test was performed in a temperature range from 35 to 500°C, with a heating rate of 10°C/min.

 

The following behaviour was noted.

 

220 - 235°C               Endothermicreaction showing a probable crystalline reorganization of the test item at 229.5°C (Onset: 224.5°C, Enthalpy of Reorganization: 171.6 J/g).

 

235 - 250°C               Endothermicreaction showing a melting transition of the test item at 242.3°C (Onset: 239.3°C, Enthalpy of Fusion: 509.4 J/g).

 

350°C                        TGA shows a mass loss while DSC shows an increase in heat flow: probable vaporization followed by an immediate degradation.

 

Applicant's summary and conclusion

Conclusions:
Boiling point of the substance is 350°C.