Registration Dossier
Registration Dossier
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EC number: 221-359-1 | CAS number: 3077-12-1
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:
- 16 Jul - 19 Jul 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Type of method:
- differential scanning calorimetry
- Melting / freezing pt.:
- >= 30 - <= 59 °C
- Atm. press.:
- 1 013 hPa
Reference
Results
The test item N, N-dihydroxyethyl-p-toluidine shows a melting area of crystalline main compartments between 30 and 59 °C in the 1st heating run according to the definition in the OECD Guideline 102 (mean value form repeat determination). Additionally, the test item shows a glass transition temperature at ca. -35 °C in the 2nd heating run.
Melting of main component (1st heating run)
30 °C and 59 °C (from 1st measurement)
30 °C and 60 °C (from 2nd measurement)
29 °C and 60 °C (from 3rd measurement)
The cooling run shows no crystallization.
Conclusion
The test item N, N-dihydroxyethyl-p-toluidine shows a melting area of
crystalline main compartments between 30 and 59 °C according to the
definition in the OECD Guideline 102 (mean value from repeat
determination).
Description of key information
Melting area of crystalline main compartments between 30 °C and 59 °C (DSC, OECD 102)
Key value for chemical safety assessment
Additional information
Glass transition: -35 °C
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