Registration Dossier

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
27 Feb - 3 Mar 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report Date:
2017

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
according to
Guideline:
EPA OPPTS 830.7200 (Melting Point / Melting Range)
Deviations:
no
GLP compliance:
yes
Type of method:
method to determine freezing temperature

Test material

Reference
Name:
Unnamed
Type:
Constituent
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: 116B2018
- Physical state: clear and colorless liquid
- Analytical purity: 96.3%
- Expiration date of the lot/batch: 31 August 2018
- Purity test date: 15 Nov 2016

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: at room temperature container flushed with nitrogen

Results and discussion

Melting / freezing point
Key result
Melting / freezing pt.:
< -80 °C
Atm. press.:
981 hPa
Decomposition:
no

Any other information on results incl. tables

Crystallization and melting of the test item were not observed by experiments on the DSC (range = -90 °C to 400 °C). Two subsamples of the test substance were then placed in freezers for 23 hours at -23.0 ± 0.6 °C and at -82.6 °C ± 2.0 °C, respectively. After storage it was visually observed that the test substance was a liquid. Based on this it was concluded that the melting temperature of the test substance is < -80 °C.

Applicant's summary and conclusion

Conclusions:
A melting point of < -80 °C was observed for PPVE-2 as determined by EU Method A.1.
Executive summary:

The melting point of PPVE-2 was tested using differential scanning calorimetry (DSC). Crystallization and melting of the test substance was not observed by DSC. Two subsamples of the test substance were then placed in freezers for 23 hours at -23.0 ± 0.6 °C and at -82.6 °C ± 2.0 °C, respectively. After storage it was visually observed that the test substance was a liquid. Based on this it was concluded that the melting temperature of the test substance is < -80 °C. The study was conducted in accordance with EU Method A.1 and was CLP compliant; therefore the study is considered reliable without restrictions.