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Physical & Chemical properties

Melting point / freezing point

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Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
not reported
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Authoritative handbook
Reference:
Composition 0
Principles of method if other than guideline:
No principles of method available; handbook data
GLP compliance:
no
Type of method:
other: handbook data
Test material information:
Composition 1
Melting / freezing pt.:
189 - 190 °C
Conclusions:
According to the Handbook of Industrial Surfactants (4th Edition), the melting point of the test item is in the temperature range from 180-190 °C.
Executive summary:

According to the Handbook of Industrial Surfactants (4th Edition), the melting point of the test item is in the temperature range from 180-190 °C. The data is provided to support the result from an experimental study.

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1997-05-11 to 1997-12-13
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
Reference:
Composition 0
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
Directive 92/69/EEC, A.1.
Deviations:
no
GLP compliance:
yes
Type of method:
thermal analysis
Remarks:
DSC method
Test material information:
Composition 1
Key result
Melting / freezing pt.:
180.5 °C
Atm. press.:
1 atm
Decomposition:
yes
Decomp. temp.:
210.3 °C
Sublimation:
no

Measured melting point temperature:

1st: 180.1 °C

2nd: 180.8 °C

=> mean value: 180.5 °C.

At a temperature of approx. 210 °C the test item started to decompose. The decomposition was indicated by a short exothermal heat flow.

Conclusions:
A mean value of 180.5 °C for melting point was determined in a reliable study conducted according to EU method A.1, and in compliance with GLP.
Executive summary:

A mean value of 180.5 °C for melting point was determined in a reliable study conducted according to EU method A.1, and in compliance with GLP.

Description of key information

The melting point of the test item was determined according to EU A.1 and is 180.5 °C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
180.5 °C

Additional information

The result from the experimental study is supported by handbook data where a temperature range from 180 -190 °C is reported for the melting point of the test item.