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EC number: 629-661-9 | CAS number: 83834-59-7
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:
- 04-January-2010 to 04-February-2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- other: Visual judgement
- Key result
- Melting / freezing pt.:
- -68.3 °C
- Decomposition:
- no
- Sublimation:
- no
- Remarks on result:
- other: at ambient pressure
- Conclusions:
- The freezing point of Ethylhexyl Methoxycinnamate was determined to be -68.3 °C which is equal to 205.0 K by visual judgement.
- Executive summary:
The aim of this study was to determine the freezing point/range of 2-ethylhexyl 4-methoxycinnamate. The freezing point of Ethylhexyl Methoxycinnamate was determined to be -68.3 °C, which is equal to 205.0 K. The estimated accuracy is ± 0.5 K.
Reference
A preliminary test was performed to check the approximate freezing temperature of 2-ethylhexyl 4-methoxycinnamate . The test item was stored about 24 hours at -24 °C in a freezer. As the sample was not frozen after this time the freezing temperature of 2-ethylhexyl 4-methoxycinnamate is below -24 °C.
During the main tests, about 10 mL of the test item placed in a small test tube were cooled down from room temperature to about -70 °C using a dry ice and acetone mixture.
At 68.5 °C (1st test) and 68.0 °C (2nd test), respectively, the test item was frozen by visual judgement.
The results of the individual measurements are summarized in Table1 below:
Table1 Determination of the Freezing Point of 2-ethylhexyl 4-methoxycinnamate (Summary)
|
Freezing Point |
|
[°C] |
[K] |
|
Preliminary test |
Below -24 |
Below 249.2 |
1st main test |
-68.5 |
204.7 |
2nd main test |
-68.0 |
205.2 |
Mean value |
-68.3 |
205.0 |
The mean freezing point was calculated from the bold values.
Description of key information
Melting/freezing point: 205 K at ambient pressure (freezing point)
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 205 K
Additional information
The freezing point of Ethylhexyl Methoxycinnamate was determined to be 205 K at ambient pressure in a study according to OECD guideline 102 and EU Method A1 under GLP.
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