Registration Dossier
Registration Dossier
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EC number: 208-043-9 | CAS number: 506-51-4
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:
- 2009-10-22
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods with acceptable restrictions
- Remarks:
- Test procedure in accordance with national standard methods (OECD) without GLP.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- not specified
- GLP compliance:
- no
- Type of method:
- capillary method
- Key result
- Melting / freezing pt.:
- 72.9 °C
- Atm. press.:
- ca. 1 005.6 mBar
- Decomposition:
- no
- Sublimation:
- no
- Conclusions:
- The melting point of Tetracosanol was determined to be 73°C at atmospheric pressure according to OECD Guideline 102. The result is considered to be reliable.
- Executive summary:
The melting point of Tetracosanol was determined to be 73 °C at atmospheric pressure according to OECD Guideline 102.
Reference
Calibration
Date of calibration: 30.09.2009
Operator: R.Bartel
calibration material: Benzophenone
Lot no. of calibration material: 1322818 42507215
melting point (theory): 47,6 (+-0,2)
Melting point (experimental): 47,7
Measurement
(triple determination)
initial temperature in °C: 65 / 65 / 65
final temperature in °C: 85 / 85 / 85
Melting point in °C: 72,8 / 72,9 / 73,0
atmospheric pressure in mbar: 1005,6 / 1005,6 / 1005,6
Description of key information
The melting point of tetracosan-1-ol is 72.9°C.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 72.9 °C
Additional information
A measured melting point of 72.9°C at atmospheric pressure was determined for the substance in accordance with OECD 102. The result is considered to be reliable.
Discussion of trends in the Category of C6-24 linear and essentially-linear aliphatic alcohols:
As the chain length increases, melting point increases. This is because molecular weight is higher and intermolecular forces in the substance are all higher.
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