Registration Dossier
Registration Dossier
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EC number: 257-884-8 | CAS number: 52372-36-8
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:
- June 21, 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)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Key result
- Decomposition:
- yes
- Decomp. temp.:
- ca. 130 °C
- Conclusions:
- The test item Disperse Red 362 had no melting point under atmospheric conditions.
Reference
A DSC measurement with a heating rate of 10 K/min showed an exothermal effect in the temperature range of 130 – 260 °C and an endothermal effect in the temperature range of
260 – 305 °C. The results of the DSC measurement are summarized in Table 1.
Table 1: Melting point (DSC measurements)
Ident No. | Test item / mg | Starting temperature / °C | Final test temperature / °C | Temperature range (endo-thermal) / °C | Onset (melting) / °C | Crucible | Observations after the measurement |
36317 | 8.64 | 25 | 500 | 260 – 305 | - | Aluminium with a hole | Black residue |
No endothermal effects were observed before the exothermal effect. The DSC measurement showed therefore no melting before the decomposition started
The test item had no melting point under atmospheric conditions.
Description of key information
The test item Disperse Red 362 had no melting point under atmospheric conditions.
Key value for chemical safety assessment
Additional information
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