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Melting point / freezing point

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Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
Differential Scanning Calorimetry
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
differential scanning calorimetry
Melting / freezing pt.:
276.4 °C
Atm. press.:
ca. 1 Bar
Remarks on result:
other:

Analysis was performed in triplicate:

 No.  sample mass (mg)  Melting temperature (°C)
 1  7.2  276.3
 2  7.4  276.3
 3  8.0  276.6
 mean    276.4
Conclusions:
The melting temperature of Macrolex Rot 5B is 276.4°C
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
2000
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
GLP compliance:
no
Other quality assurance:
ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
Type of method:
differential scanning calorimetry
Specific details on test material used for the study:
The sample was dried before analysis.
Melting / freezing pt.:
ca. 260 °C
Atm. press.:
ca. 1 atm
Decomposition:
yes
Decomp. temp.:
>= 360 °C
Executive summary:

The melting point was determined using DSC to be about 260°C.

Description of key information

The melting point of Macrolex Rot 5B is 276.4°C

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
276.4 °C

Additional information

In a supporting study with dried material a melting point of about 260°C was reported and that the substance decomposes at temperatures >360°C.