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EC number: 931-037-9 | CAS number: -
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Testing was conducted between 18 March 2008 and 11 April 2008.
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study conducted in compliance with agreed protocols, with no or minor deviation from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of relevant results.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 008
- Report date:
- 2008
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Date of inspection: 21/08/2007 Date of signature: 15/10/2007
- Type of method:
- effusion method: vapour pressure balance
Test material
- Reference substance name:
- dibarium(2+) bis(1,5-dioxo-1,5-bis(tridecyloxy)pentane-3-sulfonate) hydrogen phosphate
- EC Number:
- 931-037-9
- Molecular formula:
- Molecular formula for each combination of chain length. C13,13: (C30H57O7S)2 Ba @ BaHOP4 C11,12: (C27H51O7S)2 Ba @ BaHOP4 C12,12: (C28H53O7S)2 Ba @ BaHOP4 C12,13: (C29H55O7S)2 Ba @ BaHOP4 C13,14: (C31H59O7S)2 Ba @ BaHOP4 C14,14: (C32H61O7S)2 Ba @ BaHOP4
- IUPAC Name:
- dibarium(2+) bis(1,5-dioxo-1,5-bis(tridecyloxy)pentane-3-sulfonate) hydrogen phosphate
- Details on test material:
- Sponsor's identification: Barium di(bistridecylsulfosuccinate) in mixture with Barium hydrogen phosphate
Description : pale yellow solid
Batch number : Y-T-1
Storage conditions: room temperature, in the dark
Constituent 1
Results and discussion
Vapour pressure
- Temp.:
- 25 °C
- Vapour pressure:
- < 0 Pa
Any other information on results incl. tables
Results:
Run 1:
Temperature (ºC) |
Temperature (K) |
Reciprocal Temperature (K-1) |
Mass Difference (µg) |
Mass Difference (kg) |
Vapour Pressure (Pa) |
Log10Vp |
183 |
456.15 |
0.002192261 |
-0.08 |
-8.000E-11 |
- |
- |
184 |
457.15 |
0.002187466 |
1.06 |
1.060E-09 |
0.001471552 |
-2.832224513 |
185 |
458.15 |
0.002182691 |
1.06 |
1.060E-09 |
0.001471552 |
-2.832224513 |
186 |
459.15 |
0.002177937 |
2.12 |
2.120E-09 |
0.002943103 |
-2.531194518 |
187 |
460.15 |
0.002173204 |
0.41 |
4.100E-10 |
0.000569185 |
-3.244746522 |
188 |
461.15 |
0.002168492 |
0.16 |
1.600E-10 |
0.000222121 |
-3.653410396 |
189 |
462.15 |
0.002163800 |
1.55 |
1.550E-09 |
0.002151797 |
-2.667198681 |
190 |
463.15 |
0.002159128 |
0.16 |
1.600E-10 |
0.000222121 |
-3.653410396 |
191 |
464.15 |
0.002154476 |
2.28 |
2.280E-09 |
0.003165224 |
-2.499595532 |
192 |
465.15 |
0.002149844 |
0.24 |
2.400E-10 |
0.000333181 |
-3.477319137 |
193 |
466.15 |
0.002145232 |
1.14 |
1.140E-09 |
0.001582612 |
-2.800625527 |
No statistical analysis is given due to the nature of the graph.
Run 2:
Temperature (ºC) |
Temperature (K) |
Reciprocal Temperature (K-1) |
Mass Difference (µg) |
Mass Difference (kg) |
Vapour Pressure (Pa) |
Log10Vp |
183 |
456.15 |
0.002192261 |
0.41 |
4.100E-10 |
0.000569185 |
-3.244746522 |
184 |
457.15 |
0.002187466 |
1.06 |
1.060E-09 |
0.001471552 |
-2.832224513 |
185 |
458.15 |
0.002182691 |
0.41 |
4.100E-10 |
0.000569185 |
-3.244746522 |
186 |
459.15 |
0.002177937 |
0.81 |
8.100E-10 |
0.001124488 |
-2.949045360 |
187 |
460.15 |
0.002173204 |
0.65 |
6.500E-10 |
0.000902367 |
-3.044617022 |
188 |
461.15 |
0.002168492 |
-0.81 |
-8.100E-10 |
- |
- |
189 |
462.15 |
0.002163800 |
0.90 |
9.000E-10 |
0.001249431 |
-2.903287869 |
190 |
463.15 |
0.002159128 |
0.57 |
5.700E-10 |
0.000791306 |
-3.101655523 |
191 |
464.15 |
0.002154476 |
0.08 |
8.000E-11 |
0.000111060 |
-3.954440392 |
192 |
465.15 |
0.002149844 |
0.90 |
9.000E-10 |
0.001249431 |
-2.903287869 |
193 |
466.15 |
0.002145232 |
1.38 |
1.380E-09 |
0.001915794 |
-2.717651292 |
No statistical analysis is given due to the nature of the graph
Run 3:
Temperature (ºC) |
Temperature (K) |
Reciprocal Temperature (K-1) |
Mass Difference (µg) |
Mass Difference (kg) |
Vapour Pressure (Pa) |
Log10Vp |
183 |
456.15 |
0.002192261 |
-0.24 |
-2.400E-10 |
- |
- |
184 |
457.15 |
0.002187466 |
0.24 |
2.400E-10 |
0.000333181 |
-3.477319137 |
185 |
458.15 |
0.002182691 |
0.49 |
4.900E-10 |
0.000680246 |
-3.167334299 |
186 |
459.15 |
0.002177937 |
0.33 |
3.300E-10 |
0.000458125 |
-3.339016439 |
187 |
460.15 |
0.002173204 |
-0.33 |
-3.300E-10 |
- |
- |
188 |
461.15 |
0.002168492 |
-0.65 |
-6.500E-10 |
- |
- |
189 |
462.15 |
0.002163800 |
0.73 |
7.300E-10 |
0.001013427 |
-2.994207519 |
190 |
463.15 |
0.002159128 |
0.41 |
4.100E-10 |
0.000569185 |
-3.244746522 |
191 |
464.15 |
0.002154476 |
0.08 |
8.000E-11 |
0.000111060 |
-3.954440392 |
192 |
465.15 |
0.002149844 |
1.30 |
1.300E-09 |
0.001804733 |
-2.743587026 |
193 |
466.15 |
0.002145232 |
1.63 |
1.630E-09 |
0.002262858 |
-2.645342774 |
No statistical analysis is given due to the nature of the graph.
Run 4:
Temperature (ºC) |
Temperature (K) |
Reciprocal Temperature (K-1) |
Mass Difference (µg) |
Mass Difference (kg) |
Vapour Pressure (Pa) |
Log10Vp |
183 |
456.15 |
0.002192261 |
0.33 |
3.300E-10 |
0.000458125 |
-3.339016439 |
184 |
457.15 |
0.002187466 |
-1.38 |
-1.380E-09 |
- |
- |
185 |
458.15 |
0.002182691 |
0.81 |
8.100E-10 |
0.001124488 |
-2.949045360 |
186 |
459.15 |
0.002177937 |
0.65 |
6.500E-10 |
0.000902367 |
-3.044617022 |
187 |
460.15 |
0.002173204 |
0.49 |
4.900E-10 |
0.000680246 |
-3.167334299 |
188 |
461.15 |
0.002168492 |
0.65 |
6.500E-10 |
0.000902367 |
-3.044617022 |
189 |
462.15 |
0.002163800 |
0.49 |
4.900E-10 |
0.000680246 |
-3.167334299 |
190 |
463.15 |
0.002159128 |
0.49 |
4.900E-10 |
0.000680246 |
-3.167334299 |
191 |
464.15 |
0.002154476 |
0.73 |
7.300E-10 |
0.001013427 |
-2.994207519 |
192 |
465.15 |
0.002149844 |
1.22 |
1.220E-09 |
0.001693673 |
-2.771170548 |
193 |
466.15 |
0.002145232 |
0.57 |
5.700E-10 |
0.000791306 |
-3.101655523 |
No statistical analysis is given due to the nature of the plot
Run 5:
Temperature (ºC) |
Temperature (K) |
Reciprocal Temperature (K-1) |
Mass Difference (µg) |
Mass Difference (kg) |
Vapour Pressure (Pa) |
Log10Vp |
183 |
456.15 |
0.002192261 |
1.22 |
1.220E-09 |
0.001693673 |
-2.771170548 |
184 |
457.15 |
0.002187466 |
0.49 |
4.900E-10 |
0.000680246 |
-3.167334299 |
185 |
458.15 |
0.002182691 |
0.33 |
3.300E-10 |
0.000458125 |
-3.339016439 |
186 |
459.15 |
0.002177937 |
-0.16 |
-1.600E-10 |
- |
- |
187 |
460.15 |
0.002173204 |
1.14 |
1.140E-09 |
0.001582612 |
-2.800625527 |
188 |
461.15 |
0.002168492 |
0.81 |
8.100E-10 |
0.001124488 |
-2.949045360 |
189 |
462.15 |
0.002163800 |
1.14 |
1.140E-09 |
0.001582612 |
-2.800625527 |
190 |
463.15 |
0.002159128 |
0.00 |
0.000E+00 |
- |
- |
191 |
464.15 |
0.002154476 |
0.65 |
6.500E-10 |
0.000902367 |
-3.044617022 |
192 |
465.15 |
0.002149844 |
0.16 |
1.600E-10 |
0.000222121 |
-3.653410396 |
193 |
466.15 |
0.002145232 |
1.06 |
1.060E-09 |
0.001471552 |
-2.832224513 |
Run 5 was chosen because the sample had been under vacuum for the longest period prior to this run and so degassing would have been the most complete. The reading at 183ºC (456.15 K) was chosen because this is the data point which gives the highest estimated vapour pressure at any given temperature when a slope of –1500 K is imposed upon it.
The value of –1500 K is an in-house value and is the shallowest slope observed whilst determining the vapour pressure on a wide range of samples using the vapour pressure balance method. Extrapolation to 25ºC gave a vapour pressure of 3.063 x 10-5Pa which has been taken as a maximum for this material.
The test material did not change in appearance under the conditions used in the determination.
Applicant's summary and conclusion
- Conclusions:
- The test material has been determined to be not highly flammable as it did not propagate combustion over the 200 mm of the preliminary screening test in under 4 minutes.
- Executive summary:
The vapour pressure was determined using a vapour pressure balance with measurements being made at several temperatures and linear regression analysis used to calculate the vapour pressure at 25°C. Testing was conducted using Method A4 of Commission Directive 92/69/EEC (which constitutes Annex V of Council Directive 67/548/EEC). The vapour pressure of the test material has been determined to be less than 3.1 x 10-5Pa at 25ºC.
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