Registration Dossier
Registration Dossier
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 270-171-6 | CAS number: 68412-15-7
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:
- 2017-06-06 to 2017-06-06
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- other: OECD Guideline 103 Boiling point
- Version / remarks:
- 1995-07-27
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- >= 79 - <= 81 °C
- Atm. press.:
- 991 hPa
- Conclusions:
- The melting point of Octadecanoic Acid, reaction products with triethylenetetramine was determined to be in a range of 79 to 81 °C, using differential scanning calorimetry.
- Executive summary:
A study on differential scanning calorimetry according to OECD Guideline 103 (27 July 1995) was conducted with Octadecanoic Acid, reaction products with triethylenetetramine.
The heating phase covered a range from room temperature to 500 °C. During the heating phase an endothermic effect was observed in the temperature range of 50– 130 °C, which can be assigned to the melting of the test item. In the temperature range of 230 – 450 °C an exothermic effect with a decomposition energy of approx. -1230 J/g, directly followed by an endothermic effect in the temperature range of 450 – 490 °C was observed.
Melting of Octadecanoic Acid, reaction products with triethylenetetramine was observed in a range of 79 to 81 °C.
Reference
Results of the DSC-measurements:
DSC run No. |
Sample weight / mg |
Onset of Effect / °C |
Range of effect / °C |
Weight loss / mg |
Atmospheric pressure / hPa |
PN13507 |
12.20 |
78.81 - - - - - - |
60 - 130 (endo) 240 - 450 (exo) 450 - 490 (endo) |
11.68 |
991.0 |
PN13509 |
10.16 |
81.34 - - - - - - |
50 - 130 (endo) 230 - 450 (exo) 450 – 490 (endo) |
9.70 |
991.0 |
Description of key information
A study on differential scanning calorimetry according to OECD Guideline 103 (27 July 1995) was conducted with Octadecanoic acid, reaction products with triethylenetetramine.
The heating phase covered a range from room temperature to 500 °C. During the heating phase an endothermic effect was observed in the temperature range of 50– 130 °C, which can be assigned to the melting of the test item. In the temperature range of 230 – 450 °C an exothermic effect with a decomposition energy of approx. -1230 J/g, directly followed by an endothermic effect in the temperature range of 450 – 490 °C was observed.
Melting of Octadecanoic acid, reaction products with triethylenetetramine was observed in a range of 79 to 81 °C.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 81 °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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
