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EC number: 701-379-1 | 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:
- from 2008-07-31 to 2008-09-02
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- The study is regarded as reliable without restrctions because it was conducted in accordance with GLP regulation and guideline.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- 1993
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Version / remarks:
- 1996
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- capillary method
- Key result
- Melting / freezing pt.:
- >= 45 - <= 49 °C
- Atm. press.:
- 101.3 kPa
- Decomposition:
- no
- Sublimation:
- no
- Conclusions:
- Using a linear heating rate of 0.5 °C/min the melting range of the test item was found to be 45 – 49 °C (318 – 322 K) at 101.3 kPa.
- Executive summary:
A study according to OECD 102 and EU Method A.1 was performed to determine the melting point of the test item. The capillary method was used. Using heating rate of 0.5 °C/min three measurements with 3 replicates each were conducted. The test item melting range was determined to be 45 - 49 °C at 101.3 kPa.
Reference
Results
Using a linear heating rate of 0.5 °C/min the melting range of the test item was found to be 45 – 49 °C (318 – 322 K).
Table 1. Measured temperatures corresponding to the melting (temp. 1./2./3.) of the test item (three experiments (I, II, III) with three parallel samples each (1, 2, 3)
|
Measured Temperatures during the Main Study (°C) |
|||||||||
|
I /1 |
I /2 |
I /3 |
II /1 |
II /2 |
II /3 |
III /1 |
III /2 |
III /3 |
Mean |
Beginning of melting Temp. 1. |
44.8 |
44.8 |
44.8 |
44.7 |
44.7 |
44.7 |
44.8 |
* |
44.8 |
45 |
Temp. 2. |
46.8 |
46.8 |
46.8 |
46.7 |
46.7 |
46.7 |
46.7 |
46.7 |
46.7 |
47 |
Final stage melting Temp. 3. |
48.6 |
48.6 |
48.6 |
48.4 |
48.4 |
48.4 |
48.6 |
48.5 |
48.6 |
49 |
* recording error
Description of key information
Using the capillary method, the melting range of the test item was found to be 45 – 49 °C (318 – 322 K) at 101.3 kPa.
Key value for chemical safety assessment
Additional information
A study according to OECD 102 and EU Method A.1 was performed to determine the melting point of the test item. The capillary method was used. Using heating rate of 0.5 °C/min three measurements with 3 replicates each were conducted. The test item melting range was determined to be 45 - 49 °C at 101.3 kPa.
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