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EC number: 279-348-2 | CAS number: 79915-74-5
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:
- Experimental Starting Date: 21 April 2015 Experimental Completion Date: 08 June 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: see 'Remark'
- Remarks:
- Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results. The study report was conclusive, done to a valid guideline and the study was conducted under GLP conditions.
- 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
- Type of method:
- thermal analysis
- Key result
- Melting / freezing pt.:
- < 253 K
- Decomposition:
- no
- Sublimation:
- no
- Conclusions:
- The freezing temperature of the test item has been determined to be less than -20 °C (<253 K).
- Executive summary:
The determination was carried out using a procedure designed to be compatible with Method A1 Melting/Freezing Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 102 of the OECD Guidelines for Testing of Chemicals, 27 July 1995.
Conclusion
The freezing temperature of the test item has been determined to be less than -20 °C (<253 K).
Reference
Results
Cooling data for Determinations 1 and 2 are shown in the following tables:
Table 3.1–Determination 1
Time (s) |
Temperature (°C) |
Time (s) |
Temperature (°C) |
Time (s) |
Temperature (°C) |
0 |
20.5 |
600 |
-1.5 |
1200 |
-15.0 |
30 |
19.5 |
630 |
-2.0 |
1230 |
-15.5 |
60 |
18.0 |
660 |
-3.0 |
1260 |
-16.0 |
90 |
17.0 |
690 |
-4.0 |
1290 |
-16.0 |
120 |
16.0 |
720 |
-5.0 |
1320 |
-16.5 |
150 |
15.0 |
750 |
-5.5 |
1350 |
-17.0 |
180 |
14.0 |
780 |
-6.5 |
1380 |
-17.5 |
210 |
13.0 |
810 |
-7.5 |
1410 |
-18.0 |
240 |
11.5 |
840 |
-8.5 |
1440 |
-18.0 |
270 |
10.0 |
870 |
-9.0 |
1470 |
-18.5 |
300 |
9.0 |
900 |
-9.5 |
1500 |
-19.0 |
330 |
8.0 |
930 |
-10.0 |
1530 |
-19.0 |
360 |
6.5 |
960 |
-11.0 |
1560 |
-19.5 |
390 |
5.5 |
990 |
-11.5 |
1590 |
-20.0 |
420 |
4.5 |
1020 |
-12.0 |
1620 |
-20.0 |
450 |
3.5 |
1050 |
-12.5 |
1650 |
-20.5 |
480 |
2.5 |
1080 |
-13.0 |
1680 |
-20.5 |
510 |
1.5 |
1110 |
-13.5 |
1710 |
-21.0 |
540 |
0.5 |
1140 |
-14.0 |
|
|
570 |
-0.5 |
1170 |
-14.5 |
|
|
Observations: No change in test item appearance.
Result: Freezing temperature: <-20 °C (<253 K).
Table 3.2–Determination 2
Time (s) |
Temperature (°C) |
Time (s) |
Temperature (°C) |
Time (s) |
Temperature (°C) |
0 |
19.5 |
180 |
11.0 |
360 |
3.0 |
30 |
18.5 |
210 |
9.5 |
390 |
2.0 |
60 |
17.0 |
240 |
8.0 |
420 |
1.0 |
90 |
15.5 |
270 |
7.0 |
450 |
0.0 |
120 |
14.0 |
300 |
5.5 |
480 |
-1.0 |
150 |
12.5 |
330 |
4.5 |
510 |
-1.5 |
Table 3.2 continued–Determination 2
Time (s) |
Temperature (°C) |
Time (s) |
Temperature (°C) |
Time (s) |
Temperature (°C) |
540 |
-2.5 |
900 |
-11.5 |
1260 |
-18.0 |
570 |
-3.5 |
930 |
-12.0 |
1290 |
-18.5 |
600 |
-4.5 |
960 |
-13.0 |
1320 |
-18.5 |
630 |
-5.5 |
990 |
-13.5 |
1350 |
-19.0 |
660 |
-6.0 |
1020 |
-14.5 |
1380 |
-19.5 |
690 |
-7.0 |
1050 |
-15.0 |
1410 |
-19.5 |
720 |
-7.5 |
1080 |
-15.5 |
1440 |
-20.0 |
750 |
-8.5 |
1110 |
-16.0 |
1470 |
-20.5 |
780 |
-9.0 |
1140 |
-16.5 |
1500 |
-20.5 |
810 |
-10.0 |
1170 |
-16.5 |
1530 |
-21.0 |
840 |
-10.5 |
1200 |
-17.0 |
|
|
870 |
-11.0 |
1230 |
-17.5 |
|
|
Observations: No change in test item appearance.
Result: Freezing temperature: <-20 °C (<253 K).
Description of key information
The freezing temperature of the substance has been determined to be < -20°C.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -20 °C
Additional information
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