Registration Dossier
Registration Dossier
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EC number: 688-947-1 | CAS number: 98092-92-3
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:
- August 10, 2016 - October 21, 2016
- 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:
- no
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- Internal sample code: 2929564-001
Purity: 100.3% w/w
Batch number: 2510468 - Key result
- Melting / freezing pt.:
- ca. 67.2 °C
- Decomposition:
- yes
- Decomp. temp.:
- ca. 234.2 °C
- Conclusions:
- From the obtained experimental data according to the A.1 method in Council Regulation (EC) No 440/2008 of 30 May 2008, OECD Guidelines No. 102, it can be concluded that Delmopinolo HCl sample melts at 67.2°C, without concurrent decomposition; a decomposition phenomena is occurred at 234°C.
- Executive summary:
Delmopinolo HCl sample melts at 67.2°C.
Reference
Results
First test
Using an analytical balance, 1.5000 mg of test item were weighed into the aluminium standard 40mL crucible, the test was performed in a temperature rangefrom 25 to 300°C, with a heating rate of 7°C/min.
The following behaviour was observed:
44.5 – 75.3°C Endothermicreaction showing a melting transition
75.3 – 234.2°C The baseline remains stable and no boiling or decomposition phenomena were detected.
234.2 – 289.9 °C Exothermicreaction showing a possible decomposition behaviour of the test item.
Second test
Since the first test didn’t show a well-defined melting transition, in order to obtain a more reliable value of melting point, a second test was run in a temperature rangefrom 30 to 100°C, lowering the heating rate to 1°C/min.
The following behaviour was observed:
54.6 – 73.1°C Endothermic reaction showing a well-defined melting transition of the test item at 67.2°C.
Description of key information
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 67.2 °C
Additional information
From the obtained experimental data according to the A.1 method in Council Regulation (EC) No 440/2008 of 30 May 2008, OECD Guidelines No. 102, it can be concluded that Delmopinolo HCl sample melts at 67.2°C, without concurrent decomposition; a decomposition phenomena is occurred at 234°C.
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