Registration Dossier
Registration Dossier
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EC number: 252-200-4 | CAS number: 34762-90-8
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:
- Testing was conducted between 14th July 2014 and 14th October 2014
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP 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:
- yes (incl. QA statement)
- Type of method:
- other: differential scanning calorimetry
- Melting / freezing pt.:
- 21.3 - 33.2
- Decomposition:
- no
- Sublimation:
- no
- Remarks on result:
- other: Atmospheric pressure was not stated in report
- Conclusions:
- Under the study conditions, the melting range of the test substance was determined to be 21.3 to 33.2 °C (294 to 306 K).
- Executive summary:
A study was conducted to determine the glass transition temperature of the test substance, trichloro(N,N-dimethyloctylamine)boron using differential scanning calorimetry according to OECD Guideline 102 and EU Method A.1 in compliance with GLP. Aliquots of test item were placed in aluminum crucibles. The crucibles were subjected to a thermal program from 5 °C to 50 °C at 20 °C/min. The appearance of the samples (residue) was recorded after the test. Under the study conditions, the melting range of the test substance was determined to be 21.3 to 33.2 °C (294 to 306 K) (Harlan, 2014).
Reference
Thermographic Data – Determination 1
Thermal Event |
Interpretation |
Temperature |
|
ºC |
K |
||
Endotherm |
Melting |
21.3 to 33.2 |
294 to 306 |
Thermographic Data – Determination 2
Thermal Event |
Interpretation |
Temperature |
|
ºC |
K |
||
Endotherm |
Melting |
21.4 to 32.9 |
295 to 306 |
Overall melting range: 21.3 to 33.2 °C (294 to 306K)
Discussion:
The test item melting took place over a significant temperature range, resulting in a broad endotherm on the thermograms. Therefore, a temperature range was considered more appropriate as the overall result.
Description of key information
The melting point was determined accordng to differential scanning calorimetry method based on OECD Guideline 102 and EU Method A.1. (Harlan, 2014).
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 21.3 °C
Additional information
The melting range of the test substance was determined to be 21.3 to 33.2°C.
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