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Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Study period:
- 15 September 2015 - 24 September 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Justification for type of information:
An OECD 104 GLP study for a similar substance is available and is used within a read-across approach. The composition of source and target substance is described and discussed in detail in the attached supporting information as well as the read-across justification.- Reason / purpose for cross-reference:
- read-across source
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- Principles of method if other than guideline:
- not applicable
- GLP compliance:
- yes (incl. QA statement)
- Other quality assurance:
- ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
- Type of method:
- effusion method: vapour pressure balance
- Specific details on test material used for the study:
- Target substance:
Amidoamine 2 (UVCB, low nitrogen):
Former chemical name: Amides, from diethylenetriamine and hydrogenated palm oil
CAS No.: 1618093-67-6
New chemical name: Glycerides, C16-18 (even numbered) and their amidation products with diethylenetriamine
Physical state: pale yellowish solid at 20 °C
Batch No.: PU50070067
Purity: 100 % (UVCB)
Storage condition of test material: Room temperature, protected from light
Stability: stable under test conditions - Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 0.001 Pa
- Remarks on result:
- other: extrapolation
- Conclusions:
- The vapour pressure of the test item has been determined to 0.00098 Pa at 25°C. It is considered likely, that the target substance Amidoamine 2 (UVCB, low nitrogen) will have a comparable vapour pressure (< 0.01 Pa) as Amidoamine (UVCB) based on the similar chemical composition and appearance (compact solid).
- Executive summary:
In the Klimisch 1 study to determine the vapour pressure of the amidoamine test item the vapor pressure balance method in accordance with EU Method A.4. and OECD Method 104 was applied. The test item showed an experimentally determined vapour pressure of 0.00098 Pa at 25°C.
It is considered likely, that the target substance Amidoamine 2 (UVCB, low nitrogen) will have a comparable vapour pressure (< 0.01 Pa) as Amidoamine (UVCB) based on the similar chemical composition and appearance (compact solid). It is expected that the higher concentration of saturated mono- and diglycerides and the presence of saturated triglycerides in Amidoamine 2 (UVCB, low nitrogen) will not significantly influence the vapour pressure.
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 15 September 2015 - 24 September 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- Principles of method if other than guideline:
- not applicable
- GLP compliance:
- yes (incl. QA statement)
- Other quality assurance:
- ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
- Type of method:
- effusion method: vapour pressure balance
- Specific details on test material used for the study:
- Test item without emulsifier was investigated.
Source substance:
Amidoamine (UVCB)
Pulcra ID: DE07_2014_012_BEL66 (amidoamine without emulsifier)
Former chemical name: Amides, from diethylenetriamine and hydrogenated palm oil
Former CAS No.: 1618093-67-6
New chemical name: Triglycerides, C16-18 (even-numbered), reaction products with diethylenetriamine
Physical state: pale yellowish solid at 20 °C
Batch No.: K8 4309 L481
Expiry date of batch: 09 March 2018
Purity: 100 % (UVCB)
Stability: stable under test conditions
Storage condition of test material: Room temperature, protected from light
Target substance:
Amidoamine 2 (UVCB, low nitrogen):
Former chemical name: Amides, from diethylenetriamine and hydrogenated palm oil
CAS No.: 1618093-67-6
New chemical name: Glycerides, C16-18 (even numbered) and their amidation products with diethylenetriamine
Physical state: pale yellowish solid at 20 °C
Batch No.: PU50070067
Purity: 100 % (UVCB)
Storage condition of test material: Room temperature, protected from light
Stability: stable under test conditions - Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 0.001 Pa
- Remarks on result:
- other: extrapolation
- Conclusions:
- The vapour pressure of the test item has been determined to 0.00098 Pa at 25°C.
- Executive summary:
In the Klimisch 1 study to determine the vapour pressure of the amidoamine test item the vapor pressure balance method in accordance with EU Method A.4. and OECD Method 104 was applied. The test item showed an experimentally determined vapour pressure of 0.00098 Pa at 25°C.
Referenceopen allclose all
A preliminary run was undertaken over the temperature range of 21 °C to 65 °C. A sequence of runs was started after a sample of the test item had been under vacuum for approximately 170 hours. Temperature and pressure readings were taken between 40 °C and 50 °C with one hour dwell at 40 °C between runs. A total of 10 runs were completed for the main sequence. Equilibrium with regard to vapor pressure was assessed to have been reached over the final 7 runs. Thus the final 7 runs have been used to calculate the definitive vapor pressure value for the test item. A plot of Log10 (Vp) versus reciprocal temperature (1/T(K)) gives a straight line graph.
The vapor pressure of the sample was measured over a range of temperatures to enable extrapolation to 298.15 K.
The values of vapor pressure at 20 °C extrapolated from each graph are summatized in the following table:
| Run | Log10[Vp(25 °C)] |
| 4 | -2.94 |
| 5 | -2.98 |
| 6 | -3.10 |
| 7 | -3.06 |
| 8 | -2.96 |
| 9 | -2.94 |
| 10 | -3.08 |
| Mean | -3.01 |
| Vapor pressure | 9.82 x 10-4Pa |
The values of vapor pressure at 25 °C extrapolated from each graph are summatized in the following table:
| Run | Log10 [Vp(25 °C)] |
| 4 | -2.94 |
| 5 | -2.98 |
| 6 | -3.10 |
| 7 | -3.06 |
| 8 | -2.96 |
| 9 | -2.94 |
| 10 | -3.08 |
| Mean | -3.01 |
| Vapor pressure | 9.82 x 10-4 Pa |
A preliminary run was undertaken over the temperature range of 21 °C to 65 °C. A sequence of runs was started after a sample of the test item had been under vacuum for approximately 170 hours. Temperature and pressure readings were taken between 40 °C and 50 °C with one hour dwell at 40 °C between runs. A total of 10 runs were completed for the main sequence. Equilibrium with regard to vapor pressure was assessed to have been reached over the final 7 runs. Thus the final 7 runs have been used to calculate the definitive vapor pressure value for the test item. A plot of Log10 (Vp) versus reciprocal temperature (1/T(K)) gives a straight line graph.
The vapor pressure of the sample was measured over a range of temperatures to enable extrapolation to 298.15 K.
The values of vapor pressure at 20 °C extrapolated from each graph are summatized in the following table:
| Run | Log10[Vp(25 °C)] |
| 4 | -2.94 |
| 5 | -2.98 |
| 6 | -3.10 |
| 7 | -3.06 |
| 8 | -2.96 |
| 9 | -2.94 |
| 10 | -3.08 |
| Mean | -3.01 |
| Vapor pressure | 9.82 x 10-4Pa |
The values of vapor pressure at 25 °C extrapolated from each graph are summatized in the following table:
| Run | Log10 [Vp(25 °C)] |
| 4 | -2.94 |
| 5 | -2.98 |
| 6 | -3.10 |
| 7 | -3.06 |
| 8 | -2.96 |
| 9 | -2.94 |
| 10 | -3.08 |
| Mean | -3.01 |
| Vapor pressure | 9.82 x 10-4 Pa |
Description of key information
The vapour pressure of the test item has been determined to 0.00098 Pa at 25°C.
It is considered likely, that the target substance Amidoamine 2 (UVCB, low nitrogen) will have a comparable vapour pressure (< 0.01 Pa) as Amidoamine (UVCB) based on the similar chemical composition and appearance (compact solid). It is expected that the higher concentration of saturated mono- and diglycerides and the presence of saturated triglycerides in Amidoamine 2 (UVCB, low nitrogen) will not significantly influence the vapour pressure.
Key value for chemical safety assessment
- Vapour pressure:
- 0.001 Pa
- at the temperature of:
- 25 °C
Additional information
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