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EC number: 256-233-5 | CAS number: 45320-65-8
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2018-03-14 to 2018-03-29
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Version / remarks:
- 2006-03-23
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Version / remarks:
- 2008-05-30
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: vapour pressure balance
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- 0.002 Pa
- Remarks on result:
- other: calculated by extrapolation
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 0.002 Pa
- Remarks on result:
- other: calculated by extrapolation
- Key result
- Temp.:
- 50 °C
- Vapour pressure:
- 0.004 Pa
- Remarks on result:
- other: calculated by extrapolation
- Executive summary:
The vapour pressure of N,N'-[(methylimino)bis(trimethylene)] bis(oleamide) was determined by the "effusion method: vapour pressure balance" according to OECD Guideline 104 (23 March 2006) and according to the test method A.4."Vapour Pressure" as described in the Council Regulation (EC) No 440/2008 of 30 May 2008.
Before performing the test to determine the vapour pressure, the thermal stability of the test item was assessed with a DSC-measurement up to a temperature of 300 °C.
In the temperature range of 30 – 50°C the test item showed an endothermic effect, which can be assigned to the melting of the test item. No further thermal effects could be observed up to the maximum test temperature of 300 °C.
The vapour pressure for five temperatures was measured in the temperature range of 120.9 °C to 140.8 °C.
The vapour pressure of N,N'-[(methylimino)bis(trimethylene)] bis(oleamide) was calculated by extrapolation of the measured vapour pressure curve for the temperatures 20, 25 and 50 °C.
At 20 °C, the vapour pressure is 1.9 E-3 Pa.
At 25 °C, the vapour pressure is 2.2 E-3 Pa.
At 50 °C, the vapour pressure is 3.9 E-3 Pa.
Reference
Results from measurements of the Effusion method
No. |
Temperature / °C |
Vapour pressure / Pa |
1 |
120.9 |
1.4 × 10-2 |
2 |
125.9 |
1.5 × 10-2 |
3 |
130.9 |
1.6 × 10-2 |
4 |
135.9 |
1.7 × 10-2 |
5 |
140.8 |
1.8 × 10-2 |
The vapour pressure of the test itemN,N'-[(methylimino)bis(trimethylene)]bis(oleamide)was calculated by extrapolation of the measured vapour pressure curve for the temperatures 20 C, 25 C and 50 C, according to OECD Test Guideline 104.
Calculated vapour pressure values for 20 C, 25 C and 50 C
Temperature / °C |
Vapour pressure / Pa |
20 |
1.9 × 10-3 |
25 |
2.2 × 10-3 |
50 |
3.9 × 10-3 |
Description of key information
The vapour pressure of N,N'-[(methylimino)bis(trimethylene)] bis(oleamide) was calculated by extrapolation of the measured vapour pressure curve for the temperatures 20, 25 and 50 °C.
At 20 °C, the vapour pressure is 1.9E-3 Pa.
At 25 °C, the vapour pressure is 2.2 E-3 Pa.
At 50 °C, the vapour pressure is 3.9E-3 Pa.
Key value for chemical safety assessment
- Vapour pressure:
- 0.002 Pa
- at the temperature of:
- 20 °C
Additional information
The vapour pressure of N,N'-[(methylimino)bis(trimethylene)] bis(oleamide) was determined by the "effusion method: vapour pressure balance" according to OECD Guideline 104 (23 March 2006) and according to the test method A.4."Vapour Pressure" as described in the Council Regulation (EC) No 440/2008 of 30 May 2008.
Before performing the test to determine the vapour pressure, the thermal stability of the test item was assessed with a DSC-measurement up to a temperature of 300 °C.
In the temperature range of 30 – 50°C the test item showed an endothermic effect, which can be assigned to the melting of the test item. No further thermal effects could be observed up to the maximum test temperature of 300 °C.
The vapour pressure for five temperatures was measured in the temperature range of 120.9 °C to 140.8 °C.
The vapour pressure of N,N'-[(methylimino)bis(trimethylene)] bis(oleamide) was calculated by extrapolation of the measured vapour pressure curve for the temperatures 20, 25 and 50 °C.
At 20 °C, the vapour pressure is 1.9E-3 Pa.
At 25 °C, the vapour pressure is 2.2 E-3 Pa.
At 50 °C, the vapour pressure is 3.9E-3 Pa.
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