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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:
04.12.91 - 23.05.92
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
no
Type of method:
capillary method
Key result
Melting / freezing pt.:
> 42.55 - < 43.325 °C
Atm. press.:
ca. 1 013.25 hPa
Decomposition:
no

The measurement of the melting point was done four times and the mean values were calibrated.

   Begin of melting/°C  end of melting/°C
 1st measurement  42.4  43.2
 2nd measurement  42.6  43.4
 3rd measurement  42.5  43.2
 4th measurement  42.7  43.5

mean: 42.55 °C

Calibration: 42.5 - 43.2 °C

 

The deviation of the values is within the validity area of the method. The temperture difference between begin and end of melting is above the standard deviation, so both values are listed.

Conclusions:
The capillary method showed that the test item had a melting range of 42.5-43.2 °C
Executive summary:

A study was conducted according to EU method A.1. The melting range was determined by the capillary method. The test item was heated from the starting temperature to the final temperature at a constant heating rate of 1K/min. The capillary method showed that the test item had a melting range of 42.5-43.2 °C

Description of key information

The test item had a melting range of 42.5-43.2 °C

Key value for chemical safety assessment

Additional information

A study was conducted according to EU method A.1. The melting range was determined by the capillary method. The test item was heated from the starting temperature to the final temperature at a constant heating rate of 1K/min. The capillary method showed that the test item had a melting range of 42.5-43.2 °C