Registration Dossier
Registration Dossier
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EC number: 268-596-7 | CAS number: 68130-53-0
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:
- 08 July 2010- 30 July 2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: This study has been performed according to OECD and EC guidelines and according to GLP principles.
- 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:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- < -20 °C
- Atm. press.:
- ca. 1 017 hPa
- Conclusions:
- The melting temperature of Decanoic acid, mixed esters with heptanoic acid, octanoic acid and trimethylolpropane was determined using DSC. The melting temperature of the test substance is < -20°C. The atmospheric pressure was 1017 ± 2 hPa.
Reference
Results
Preliminary test
From 375°C upwards the weight of the sample decreased significantly. At 428°C the sample weight had decreased by 25%.
After the experiment a small brown residue remained in the sample container.
Main study
During cooling as well as during heating, no effects were observed which were caused by crystallisation and/or melting. Between 350°C and 475°C an endothermic peak was observed which was due to boiling of the test substance. The extrapolated onset was determined to be 417.15°C.
During the second experiment the endothermic boiling peak was observed with an extrapolated onset of 417.44°C.
Additionally, the test substance was stored overnight in a -20°C freezer in order to determine if crystallization occurs. After storage the test substance had not been crystallized. From this it was concluded that the melting temperature is < -20°C (253K).
Description of key information
Determined in accordance with OECD Guideline 102.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -20 °C
Additional information
The melting temperature of decanoic acid, mixed esters with heptanoic acid, octanoic acid and trimethylolpropane was determined using DSC. The melting temperature of the test substance is < -20°C. The atmospheric pressure was 1017 ± 2 hPa.
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