Registration Dossier

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
15 June 2017 to April 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

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

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
27 July 1995
Deviations:
no
GLP compliance:
yes (incl. certificate)
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Type of method:
differential scanning calorimetry

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
liquid
Specific details on test material used for the study:
The test substance, was allocated the code ESTS 185/17 for reference throughout the study.
Physical state: Clear liquid
Arrival date: 12 June 2017
Re-test date: 23 January 2019
Storage conditions: Room temperature (15 to 30°C)

Results and discussion

Melting / freezing point
Key result
Melting / freezing pt.:
< -60 °C
Atm. press.:
ca. 1 013 hPa
Decomposition:
no

Any other information on results incl. tables

No endotherm relating to a melting temperature was observed, the melting point was

< -60°C. A relatively broad endotherm was seen starting at a mean temperature of 276°C (279.58°C test 1, 272.69°C test 2) suggesting boiling and decomposition. A dark brown residue remained in the crucibles at the end of the test. The thermograms are shown in Figure 11 and Figure 12 (attached).

Applicant's summary and conclusion

Conclusions:
The melting / freezing point of the test substance was found to be <-60 °C at 1013 hPa, under the conditions of the test.
Executive summary:

In this guideline (OECD 102) study, [conducted with GLP certification], the melting point of the test substance (EC 7147-34-4) was found to be <-60 °C at 1013 hPa.