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Physical & Chemical properties

Melting point / freezing point

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melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
10-15 Sep 2008
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
according to guideline
EU Method A.1 (Melting / Freezing Temperature)
according to guideline
other: internal procedure VTA(S)31X93001.02 "Melting temperature determination of solid and liquid substances by means of DSC"
GLP compliance:
Type of method:
other: differential scanning calorymetry (DSC)
Melting / freezing pt.:
>= -52 - <= -33 °C
Atm. press.:
ca. 1 013 hPa

The exact value of the atmospheric pressure is not reported (assumed to be ca. 1013 hPa). Neither decomposition nor sublimation are reported.

At -52 °C, the test item shows the start of the melting process of a partial component 1with an adjacent crystallization (probably partial component 2) and the following melting of partial component 2.

The test item shows an area of melting temperatures (in the 2. heating run) from -52 to -33 °C according to the definition in the EC guideline.

Description of key information

Melting range from -52 to -33 °C.

Key value for chemical safety assessment

Additional information

The melting point (melting range) of the substance nonanedioic acid, bis(2 -octyldodecyl) ester (CAS 897626 -46 -9) is determined according to the EC Guideline A.1 (differential scanning calorimetry method).