Registration Dossier
Registration Dossier
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EC number: 939-685-4 | CAS number: 1474044-71-7
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:
- 2011-03-16 to 2011-05-04
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- (30 May 2008)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- (27 July 1995)
- Deviations:
- no
- Remarks:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- other: Differential Scanning Calorimetry
- Remarks on result:
- other: no melting point found
- Conclusions:
- No melting point was found.
- Executive summary:
The melting point of MDIPA Esterquat C18 unsatd. was determined according to OECD Guideline 102 (27 July 1995) and EU Method A.1 (30 May 2008) using differential scanning calorimetry. The sample was slowly cooled down to -100°C to enhance the possibility of crystallisation. Upon heating of the sample small enthalpic effects were registered between -55 and -10°C, caused by phase and glass transitions. The effects, however, were too small to be caused by melting: the test substance had solidified amorphously and no melting point could be found.
Reference
The sampie was slowly eooled down (-5 K/min to -100°C) in order to enhanee the possibility of crystallisation.Upon heating several small enthalpic effects registered between -55°C and -10°C, caused by phase transitions and glass transition. However the effeets are too small to be eaused by melting, meaning that the test item had solidified amorphously.
Description of key information
No melting point was detected for MDIPA Esterquat C18 unsatd. (amorphous solidification) (OECD Guideline 102/EU Method A.1; using differential scanning calorimetry)
Key value for chemical safety assessment
Additional information
The melting point of MDIPA Esterquat C18 unsatd. was determined according to OECD Guideline 102 (27 July 1995) and EU Method A.1 (30 May 2008) using differential scanning calorimetry. The sample was slowly cooled down to -100°C to enhance the possibility of crystallisation. Upon heating of the sample small enthalpic effects were registered between -55 and -10°C, caused by phase and glass transitions. The effects, however, were too small to be caused by melting: the test substance had solidified amorphously and no melting point could be found.
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