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EC number: 274-159-1 | CAS number: 69852-45-5
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:
- This study was conducted between 09 April 2016 and 16 December 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- 30 May 2008
- 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:
- method to determine freezing temperature
- Key result
- Melting / freezing pt.:
- < 253 K
- Remarks on result:
- other:
- Remarks:
- As no plateau in the time-temperature curve could be seen, the freezing temperature was determined visually.
- Key result
- Melting / freezing pt.:
- < -20 °C
- Remarks on result:
- other:
- Remarks:
- As no plateau in the time-temperature curve could be seen, the freezing temperature was determined visually.
- Conclusions:
- The freezing temperature of the test item has been determined to be less than -20 °C (< 253 K).
- Executive summary:
The general physico-chemical properties of 3-[[3-(Dimethylamino)propyl]amino]propanenitrile (TK2710) have been determined.
Melting/Freezing Point.
Less than -20 °C (< 253 K), using a procedure designed to be compatible with Method A.1 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.
Reference
As no plateau in the time-temperature curve could be seen, the freezing temperature was determined visually.
Table 1 Determination 1:
Time (s) Temperature (°C) Time (s) Temperature (°C)
0 21.5 810 -10.5
30 19.0 840 -11.0
60 17.0 870 -11.5
90 15.5 900 -12.0
120 14.5 930 -12.5
150 12.5 960 -13.0
180 11.0 990 -14.0
210 9.0 1020 -14.5
240 8.0 1050 -15.0
270 6.5 1080 -15.5
300 5.0 1110 -16.0
330 4.0 1140 -16.0
360 2.5 1170 -16.5
390 1.0 1200 -17.0
420 0.0 1230 -17.5
450 -1.0 1260 -17.5
480 -2.0 1290 -18.0
510 -3.0 1320 -18.0
540 -4.0 1350 -18.5
570 -5.0 1380 -19.0
600 -6.0 1410 -19.5
630 -6.5 1440 -19.5
660 -7.0 1470 -20.0
690 -8.0 1500 -20.0
720 -9.5 1530 -20.5
750 -9.5 1560 -20.5
780 -10.0 1590 -21.0
Table 2: Determination 2
Time (s) Temperature (°C) Time (s) Temperature (°C)
0 22.5 960 -9.5
30 21.0 990 -10.5
60 19.5 1020 -10.5
90 18.0 1050 -11.0
120 17.0 1080 -11.5
150 15.0 1110 -12.0
180 14.0 1140 -12.5
210 13.0 1170 -13.0
240 11.5 1200 -14.0
270 10.0 1230 -14.5
300 9.0 1260 -15.0
330 8.0 1290 -15.5
360 7.0 1320 -15.5
390 5.0 1350 -16.0
420 4.5 1380 -16.0
450 3.0 1410 -16.5
480 2.0 1440 -17.0
510 1.5 1470 -17.0
540 0.5 1500 -17.5
570 0.0 1530 -18.0
600 -1.0 1560 -18.0
630 -2.0 1590 -18.5
660 -3.0 1620 -18.5
690 -4.0 1650 -19.0
720 -4.5 1680 -19.0
750 -5.0 1710 -19.5
780 -6.0 1740 -19.5
810 -6.5 1770 -20.0
840 -7.0 1800 -20.0
870 -8.0 1830 -20.5
900 -8.5 1860 -21.0
930 -9.0
Description of key information
The melting point was determined, according to OECD guideline 102, to be <-20°C (<253K)
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -20 °C
Additional information
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