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EC number: 204-673-3 | CAS number: 124-04-9
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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Qualifier:
- according to guideline
- Guideline:
- other: ASTM E 537-76
- Principles of method if other than guideline:
- method cited as CE n°440/2008 part A1 and part A2
- GLP compliance:
- not specified
- Type of method:
- thermal analysis
- Melting / freezing pt.:
- 150.85 °C
- Executive summary:
The melting point of adipic acid is 150.85°C, measured according to EU Method A.1 (Melting / Freezing Temperature) (Rhodia, 2008).
Reference
Standardisation with indium (99.99% purity Mettler) standard
Results: T(onset)a = 156.52°C H = 28.54 J/g
Conclusion: as experimental T(onset) is comprised between 156.3°C and 156.9°C which are the validation criteria, the test is validated.
Experimental sample conditions:
- Crucible used : aluminium
- Mass of test item : 6 -7 mg
Temperature program:
- Ramp heating phase 1 : from 50°C to 165°C at 2°C/min
- Ramp cooling: from 765°C to 0°C at 10°C/min
- Ramp heating phase 2: from 0°C to 165°C at 2°C/min
- Gas used : Nitrogen, 50 mL/min
Description of key information
The melting point of adipic acid is 150.85°C, measured according to EU Method A.1 (Melting / Freezing Temperature) (Rhodia, 2008).
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 150.85 °C
Additional information
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