Registration Dossier
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EC number: 438-340-0 | CAS number: 119344-86-4
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2002
- 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:
- - EEC Directive 92/69, A.1
- Deviations:
- not specified
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- 68 °C
- Decomposition:
- yes
- Decomp. temp.:
- > 270 °C
- Sublimation:
- no
- Remarks on result:
- other: ±0.4 °C
- Conclusions:
- The melting point of test substance was determined to be 68°C at 1013 hPa
- Executive summary:
In this guideline (OECD 102) study conducted to GLP standards, the test material (EC 438-340-0) was determined to have a melting point of 68°C at 1013 hPa.
Reference
The results of the individual measurements are summarized in the attached table. The test item handling (e.g. weighing) was performed under red light.
The first endothermic heat effect, the melting, was observed at 72.8 °C. After the experiment, the sample had lost about 61 % of its mass and the color of the sample was black, carbonized and melted.
In order to determine the melting more precisely, further DSC-runs were recorded between 30 °C and 130 °C with a heating rate of 5 K/min. In the first main test run, the melting of test item was determined at 68.2 °C. The melting of the test item during the second
main test run was determined to be at 67.7 °C. During these runs, the samples lost 7.8 % and 1.6 % of their mass, respectively. After the measurement both samples were melted, clear and yellowish.
Description of key information
Study conducted to recognised testing guidelines with GLP.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 68 °C
Additional information
Melting point: 68°C. The measurement was conducted by DSC
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