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Physical & Chemical properties

Melting point / freezing point

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Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2002-01-30
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
OECD Guideline N° 102 (1995)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
EEC Commission Directive 92/69 - A1 method (1992)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
method to determine freezing temperature
Key result
Melting / freezing pt.:
8.1 °C
Atm. press.:
97.4 kPa
Decomposition:
no
Sublimation:
no
Conclusions:
The mean freezing point of the test item is 8.1°C ± 0.2°C at 97.4 kPa.
Executive summary:



The freezing point of the test item was determined according to OECD test guideline 102 and Regulation (EC) No 440/2008 method A.1. The sample was placed in a special tube and placed in an apparatus for the determination of the freezing temperature. The sample was stirred gently and continuously during cooling and the temperature was measured at suitable intervals. As soon as the temperature remained constant for a few readings, this temperature was recorded as the freezing point. The mean freezing point of two assays was determined to be 8.1°C ± 0.2°C at 97.4 kPa.

Description of key information

The melting point was determined to be 8.1 °C at 97.4 kPa (reference 4.2-1).

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
8.1 °C

Additional information

The freezing point of the test item was determined according to OECD test guideline 102 and Regulation (EC) No 440/2008 method A.1. The sample was placed in a special tube and placed in an apparatus for the determination of the freezing temperature. The sample was stirred gently and continuously during cooling and the temperature was measured at suitable intervals. As soon as the temperature remained constant for a few readings, this temperature was recorded as the freezing point. The mean freezing point of two assays was determined to be 8.1°C ± 0.2°C at 97.4 kPa (reference 4.2-1).