Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

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
Study period:
14 June 2017 to 08 September 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
27 July 1995
Deviations:
not specified
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
30 May 2008
Deviations:
not specified
GLP compliance:
yes
Type of method:
differential scanning calorimetry
Melting / freezing pt.:
183 °C

Individual Results

Start of the area of melting temperature from two independent single measurements:

183 °C (from first measurement)

183 °C (from second measurement)

The start of the area of melting temperatures is defined by using the on-set temperature.

 

Final Results

The test item p-Anisic acid shows a melting area of crystalline subcomponents with a beginning at 183 °C in the 1st heating run (mean value from repeat determination). The cooling run shows a crystallization.

Description of key information

Melting point is 183 ºC (OECD 102, DSC method).

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
183 °C

Additional information