Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
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:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
- Melting / freezing pt.:
- >= 28 - <= 58 °C
- Atm. press.:
- 1 013 hPa
- Conclusions:
- The melting range of C18 and C18 unsatd. TEA-Esterquat was determined to be 28 - 58°C.
- Executive summary:
The melting point of C18 and C18 unsatd. TEA-Esterquat was determined according to EU method A.1 using differential scanning calorimetry.
The test item showed a melting area of crystalline subcomponents between 28°C and 58°C in the 1st heating run. Additionally the test item showed a glass transition temperature at -27°C in the 1st heating run.
The melting range of C18 and C18 unsatd. TEA-Esterquat was determined to be 28 - 58°C.
Reference
The test item showed a melting area of crystalline subcomponents between 28°C and 58°C in the 1st heating run. Additionally the test item showed a glass transition temperature at -27°C in the 1st heating run.
The cooling run shows a crystallization starting at 46°C. In the temperature range between 28°C and 58°C the test item shows an endothermic effect. This effect is possibly melting of the main component which was verified by subsequent tests with the Kofler-heating bank (melting effect is visible below 70°C). Start / End of the area of melting temperature from three independent single measurements: 28°C / 59°C (first measurement)
28°C / 58°C (second measurement)
28°C / 58°C (third measurement)
Description of key information
Melting range: 28 - 58°C (EU method A.1, differential scanning calorimetry); GLP; RL1
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 28 °C
Additional information
The melting point of C18 and C18 unsatd. TEA-Esterquat was determined according to EU method A.1 using differential scanning calorimetry.
The test item showed a melting range of crystalline subcomponents between 28°C and 58°C in the 1st heating run. Additionally the test item showed a glass transition temperature at -27°C in the 1st heating run.
The melting range of C18 and C18 unsatd. TEA-Esterquat was determined to be 28 - 58°C.
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