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EC number: 610-945-6 | CAS number: 53037-34-6
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 14, 2012
- 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
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- method to determine freezing temperature
- Key result
- Melting / freezing pt.:
- -6.7 °C
- Conclusions:
- The average value of an initial freezing point is equal to -6.7 °C.
- Executive summary:
The determination of the freezing point of test substance was carried out according to EU A.1 Method “Melting/freezing Temperature” and a standard PN-ISO 1392:2002. Test liquid was cooled and the freezing point was determined by observing the decreasing temperature. The average value of an initial freezing point was equal to - 6.7 °C.
Reference
Table 1. Measurement of freezing point.
Measurement No. 1 | Measurement No. 2 | ||
Time, [min] | Temperature, [˚C] | Time, [min] | Temperature, [˚C] |
0.0 | 0.5 | 0.0 | -0.1 |
2.0 | 0.0 | 2.0 | -0.9 |
4.0 | -0.1 | 4.0 | -1.5 |
6.0 | -0.4 | 6.0 | -1.9 |
8.0 | -1.0 | 8.0 | -2.4 |
10.0 | -1.4 | 10.0 | -3.0 |
12.0 | -2.0 | 12.0 | -3.5 |
14.0 | -2.2 | 14.0 | -4.2 |
16.0 | -2.4 | 16.0 | -4.5 |
18.0 | -2.7 | 18.0 | -5.2 |
20.0 | -2.9 | 20.0 | -5.8 |
22.0 | -3.2 | 22.0 | -6.3 |
24.0 | -3.3 | 24.0 | -6.6 |
26.0 | -3.5 | 26.0 | -7.1 |
28.0 | -4.0 | 28.0 | -7.5 |
30.0 | -4.3 | 30.0 | -8.0 |
32.0 | -4.7 | 32.0 | -8.5 |
34.0 | -5.2 | 33.0 | -8.6 |
36.0 | -5.6 | 33.5 | -8.0 |
38.0 | -5.8 | 33.7 | -7.6 |
40.0 | -6.5 | 34.0 | -7.4 |
42.0 | -7.0 | 35.0 | -6.8 |
44.0 | -7.6 | 36.0 | -6.7 |
46.0 | -8.3 | 37.0 | -6.9 |
48.0 | -8.0 | 38.0 | -7.1 |
48.2 | -7.1 | 39.0 | -7.6 |
48.3 | -6.8 | 40.0 | -8.1 |
48.5 | -6.7 | 42.0 | -8.5 |
50.0 | -6.7 | 44.0 | -8.7 |
52.0 | -7.0 | 46.0 | -9.2 |
54.0 | -7.0 | 48.0 | -9.6 |
56.0 | -7.1 | 50.0 | -10.0 |
58.0 | -7.3 | - | - |
60.0 | -7.5 | - | - |
62.0 | -8.1 | - | - |
64.0 | -8.5 | - | - |
66.0 | -8.8 | - | - |
68.0 | -9.1 | - | - |
Initial value of freezing point, [°C] | *-6.7 | Initial value of freezing point, [°C] | **-6.7 |
Average temperature of an initial freezing point ± stand. dev., [°C] | -6.7 | ||
*/ As the value of an initial freezing point for the measurement No. 1 the value which corresponded to 48th minute was assumed.
**/ As the value of an initial freezing point for the measurement No. 2 the value which corresponded to 36th minute was assumed.
Description of key information
Key study: Test method EU A.1. GLP study. The average value of an initial freezing point was equal to - 6.7 °C.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -6.7 °C
Additional information
Key study: The determination of the freezing point of test substance was carried out according to EU A.1 Method “Melting/freezing Temperature” and a standard PN-ISO 1392:2002. The average value of an initial freezing point was equal to - 6.7 °C.
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