Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study was performed in internal lab using different methods. An OECD study is currently conducted.

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2020
Report date:
2020

Materials and methods

Principles of method if other than guideline:
Freezing point was determined with different methods (visual inspection, DSC)
- Cooling down the test substance mixture in a test tube with a cryostat, evaluation of the crystallization point by optical analytics
- Freezing Point Test – visual test using freezer at -50 ℃
- Freezing Point Test with DSC
GLP compliance:
no
Type of method:
other: Freezing point was determined with different methods (visual inspection, DSC)

Test material

Constituent 1
Chemical structure
Reference substance name:
1-Ethyl-3-methylimidazolium Diethyl Phosphate
Cas Number:
848641-69-0
Molecular formula:
C6H11N2 C4H10O4P
IUPAC Name:
1-Ethyl-3-methylimidazolium Diethyl Phosphate
Test material form:
liquid
Details on test material:
Batch No 187-9-113-Y
Expiry date: 2021-1-30
Specific details on test material used for the study:
Test substance was investigated with different water content (up to 40%), results can be obtained up to 60 wt.-% of test item

Results and discussion

Melting / freezing point
Key result
Melting / freezing pt.:
-38 < °C

Any other information on results incl. tables

Substance was tested with different water content. Eutectic point was between 60 and 100 wt% test item. No crystallization of the test item was observed due
to very high viscosity. Pure test item  (water content ~ 1-2 %) did not crystallize at – 50 °C, but was highly viscous.

Applicant's summary and conclusion

Conclusions:
The freezing point of the test substance is below -38°C
Executive summary:

The freezing point of the test substance (80 wt%) is below -38°C. Test item containing small amounts of water (water content ~ 1-2 %) did not crystallize at – 50 °C, but was highly viscous and to the blank eye not moving anymore.