Registration Dossier
Registration Dossier
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EC number: 202-180-8 | CAS number: 92-70-6
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Information from report of analysis.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
- Report date:
- 2010
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- not specified
- GLP compliance:
- not specified
- Type of method:
- thermal analysis
- Remarks:
- Differential Scanning Calorimetry (DSC)
Test material
- Reference substance name:
- 3-hydroxy-2-naphthoic acid
- EC Number:
- 202-180-8
- EC Name:
- 3-hydroxy-2-naphthoic acid
- Cas Number:
- 92-70-6
- Molecular formula:
- C11H8O3
- IUPAC Name:
- 3-hydroxynaphthalene-2-carboxylic acid
Constituent 1
Results and discussion
Melting / freezing point
- Melting / freezing pt.:
- 217 °C
- Atm. press.:
- ca. 1 atm
- Decomposition:
- yes
- Decomp. temp.:
- >= 320 °C
- Remarks on result:
- other: Exothermic decomposition from 320°C (in sealed vial ), process still incomplete at 450°C.
Any other information on results incl. tables
Melting point represented by sharp endothermic peak at 217°C (Method DSC).
Applicant's summary and conclusion
- Conclusions:
- Melting point: 217°C (Method DSC).
- Executive summary:
Melting point of 3-hydroxy-2-naphthoic acid, was determined by Differential Scanning Calorimetry (DSC) . The melting point was found to be 217°C and was represented by a sharp endothermic peak at this temperature.
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