Registration Dossier

Physical & Chemical properties

Melting point / freezing point

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
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
Remarks:
The study was conducted according to the test guidelines in effect at the time of study conduct.
GLP compliance:
yes
Type of method:
capillary method
Melting / freezing pt.:
244 - 248 °C

Melting Point Results

Test

Melting Point

 

°C

K

1

244.5-247.5

517.65-520.65

2

243.0-248.0

516.15-521.15

Mean Result (to nearest 0.5°C)

244.0-248.0

517.15-521.15

The test substance began to darken slowly at 170°C (test 1) and 165°C (test 2). The sample completely melted at 247.5°C (test 1) and 248°C (test 2) to produce a brown liquid which solidified, on cooling, to an opaque light-brown solid.

Conclusions:
The melting range of the test substance has been determined as 244.0-248.0°C.
Executive summary:

The melting point/range of the test substance was determined using the metal block method according to EEC Directive 67/548, Annex V, A1 as published in 84/449/EEC. Two tests were run. The results were 244.5 -247.5ºC and 243.0 -248.0ºC for Tests 1 and 2, respectively. The test substance began to darken slowly at 170ºC (test 1) and 165ºC (test 2). The sample completely melted at 247.5ºC (test 1) and 248ºC (test 2) to produce a brown liquid which solidified, on cooling, to an opaque light-brown solid.

Description of key information

EU Method A.1

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
519.15 K

Additional information

244 - 248°C