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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
- Study period:
- 05/26/2020 – 06/05/2020
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- 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:
- not specified
- Type of method:
- differential scanning calorimetry
- Melting / freezing pt.:
- >= -76 - <= -27 °C
- Atm. press.:
- ca. 1 013 hPa
- Remarks on result:
- other: main compound; the melting of the remaining solid contents cannot be assigned (the sample is a pasty solid at ambient temperature).
- Conclusions:
- A melting point could not unambiguously be determined by DSC method. The melting range of the main compound is between -76 and -27 °C.
The melting of the remaining solid contents cannot be assigned (the sample is a pasty solid at ambient temperature). - Executive summary:
The melting point of MDEA-Esterquat C18 unsatd. was determined according to OECD Guideline 102 / EU method A.1 using differential scanning calorimetry.
A melting point could not unambiguously be determined by DSC method. The melting range of the main compound is between -76 and -27 °C.
The melting of the remaining solid contents cannot be assigned (the sample is a pasty solid at ambient temperature).
Reference
The test item was cooled to -150 °C at a rate of 2 K/min. The cooling curve shows a relatively clear exothermic peak at -47 °C, as well as other weak, not exactly reproducible exothermic effects.
Upon heating, a broad endothermic peak with three maxima at -63 °C, -41 °C (major) and ca. -30 °C was registered. The endothermic peak exhibits an atypical shape with several maxima and can probably be assigned to a melting range between ca. -76 and -27 °C (extrapolated Onset/Endset-Temperature).
Upon further heating several smaller endothermal signals with maxima at ca. 40 °C, ca. 96 °C, ca. 133 °C and ca. 192 °C were registered, which cannot be categorized. This could be phase changes (e.g. partial melt (the sample is a pasty solid)), as well as moisture release.
Description of key information
melting range of the main compound: between -76 and -27 °C (OECD Guideline 102 / EU method A.1; differential scanning calorimetry)
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -27 °C
Additional information
The melting point of MDEA-Esterquat C18 unsatd. was determined according to OECD Guideline 102 / EU method A.1 using differential scanning calorimetry.
A melting point could not unambiguously be determined by DSC method. The melting range of the main compound is between -76 and -27 °C.
The melting of the remaining solid contents cannot be assigned (the sample is a pasty solid at ambient temperature).
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