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Diss Factsheets

Physical & Chemical properties

Melting point / freezing point

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From January 24 to March 22, 2022
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
conducted under GLP conditions
Qualifier:
according to guideline
Guideline:
other: ISO 1392 - Determination of crystallizing point - General method
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7200 (Melting Point / Melting Range)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
2008
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
1995
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
method to determine freezing temperature
Melting / freezing pt.:
297.1 K
Atm. press.:
101 325 Pa
Key result
Melting / freezing pt.:
24 °C
Atm. press.:
101 325 Pa

The thermometer was checked against a certified thermometer on February 03, 2022.
A correction did not need to be applied.


The preliminary test was performed as described. Congealing was observed at a temperature of 15.6°C. Crystalline GR-87-6331 was available as crystallization seed for the main test.

Conclusions:
A constant temperature of 24.0°C (297.1 K) was observed in both main tests.
Therefore:
Freezing point of the test item : 24.0°C (297.1 K)
Executive summary:

The freezing point of the test item was measured according to the OECD guideline No. 102 (method of the freezing temperature).



A constant temperature of 24.0°C (297.1 K) was observed in both main tests.
Therefore:
Freezing point of the test item : 24.0°C (297.1 K)

Description of key information

The freezing point of the test item was measured according to the OECD guideline No. 102 (method of the freezing temperature).



A constant temperature of 24.0°C (297.1 K) was observed in both main tests.
Therefore:
Freezing point of the test item : 24.0°C (297.1 K)

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
24 °C

Additional information