Registration Dossier

Physical & Chemical properties

Melting point / freezing point

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Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report Date:
2010

Materials and methods

Principles of method if other than guideline:
The sample is slowly cooled to about 3 -5 °C below the expected freezing point by stirring a thermometer in a cooling bath. Crystallisation is then triggered either by rubbing with the thermometer at the test-tube wall or by inoculation. The seed crystals are evenly distributed in the sample by stirring intensely for a short period. After initialisation of crystallisation, the thermometer is only slowly moved up and down without touching the test-tube wall until the highest temperature is reached. The highest temperature is recorded, accurate to 0.1 °C, and is given as the freezing point. Temperature correction, if given in calibration certificates, is accounted for.
Type of method:
method to determine freezing temperature

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
Lot-No. DEBR009603

Results and discussion

Melting / freezing point
Melting / freezing pt.:
47.1 °C
Remarks on result:
other: Freezing point

Applicant's summary and conclusion

Conclusions:
The freezing point of the test item is 47.1 °C