Registration Dossier
Registration Dossier
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EC number: 220-489-6 | CAS number: 2783-17-7
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:
- 02. October 2018 - 06. February 2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- Name 1,12-Diaminododecane
Batch no. B1-5-10
Appearance White flakes with different size
Composition 1,12-Diaminododecane, mono-constituent
CAS No. 2783-17-7
EINECS-No. 220-489-6
Molecular formula C12H28N2
Molecular weight 200.36 g/mol
Homogeneity homogeneous
Expiry date 29.01.2019
Storage Room Temperature (20 ± 5°C) - Key result
- Melting / freezing pt.:
- 67.31 °C
- Decomposition:
- no
- Sublimation:
- no
- Conclusions:
- The melting point was determined with:
67.31 ± 0.23 °C (340.46 ± 0.23 K) - Executive summary:
The melting point and boiling point was determined via DSC (differential scanning calorimetry).
In all three DSC measurements three endothermic events were detected.
Based on observations in pre-tests the first event can be identified as melting point (evaluated
with the onset function).
The melting point was determined under these circumstances with:
67.31 ± 0.23 °C (340.46 ± 0.23 K)
This value represents the mean of three independent determinations.
The second event could be a transition phase. The beginning and the end of the event
were evaluated with the event marker and this will be given in a range from 109.06 °C to
152.53 °C (382.21 K to 425.68 K).
These values represent the values of three independent determinations.
The third event can be interpreted as boiling point. The beginning and the end of the event
were evaluated with the event marker and this will be given in a range.
Therefore, the boiling range was determined as the endothermic event under these
circumstances from:
264.28 °C to 321.54 °C (537.43 K to 594.69 K).
These values represent the values of three independent determinations.
Reference
Description of key information
one Guideline study available
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 67.31 °C
Additional information
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