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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:
18 Jan-28 Jun 1991
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
Also conducted according to GLP.
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
1984
GLP compliance:
yes
Type of method:
capillary method
Remarks:
Meta block
Melting / freezing pt.:
> 201 - < 202 °C
Atm. press.:
ca. 1 013 hPa

Results:

Test

Melting range (C°)

1

202.0-203.6

2

199.8-200.6

Mean result to nearest 0.5 °C

201.0-202.0

In both tests the sample melted to a red liquid which solidified to a red solid on cooling.

Conclusions:
The melting temperature of the test substance was 201-202 °C (474-475 K) at ca. 1013 hPa.
Executive summary:

The melting point of the test item was determined according to the EC A.1 method in compliance with GLP. Using the capillary/metal block method, the melting temperature of the test substance was determined to be 201 -202 °C at ca. 1013 hPa.

Description of key information

The melting point was determined to be 201 - 202 °C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
201 °C

Additional information

The melting point of the substance was determined according to EEC Method A.1 (1984; metal block method).