Registration Dossier
Registration Dossier
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EC number: 617-298-9 | CAS number: 82097-50-5
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:
- 02 Nov 1993 to 10 Jan 1994
- 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:
- May 1981
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- Sep 1984
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- capillary method
- Key result
- Melting / freezing pt.:
- 178.1 °C
- Decomposition:
- yes
- Decomp. temp.:
- 170 °C
- Remarks on result:
- other: As the thermal decomposition lies close to the determined melting point, the determination will have been influenced by decomposition.
- Conclusions:
- The melting point of the test substance was determined to be: 178.1 °C ( = 451.3 K), thermal decomposition starts to occur at about 170 °C.
- Executive summary:
The melting point of the test substance was determined according to OECD TG 102 following GLP principles using the capillary method with photocell detection. The melting point of the test substance was determined to be: 178.1 °C ( = 451.3 K), thermal decomposition starts to occur at about 170 °C. Investigations of the substance using thermal gravimetric analysis have indicated that thermal decomposition starts to occur at about 170 °C. As this temperature lies close to the determined melting point, the determination will have been influenced by decomposition before reaching the melting range.
Reference
Table 1. Results
Substance | Determination # | Melting point found in °C | Melting point expected in °C |
Anisic Acid | 1 | 182.9 |
|
| 2 | 183.2 |
|
| 3 | 183.0 |
|
| Average: | 183.0 | 183.0 |
Chloroanthraquinone | 1 | 209.4 |
|
| 2 | 209.5 |
|
| 3 | 209.5 |
|
| Average: | 209.5 | 209.0 |
Test substance | 1 | 178.2 |
|
| 2 | 178.1 |
|
| 3 | 178.1 |
|
| Average: | 178.1 |
|
Description of key information
Melting temperature: 178.1 °C (451.3 K) OECD TG 102, capillary method with photocell detection, Das 1994
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 178.1 °C
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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