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EC number: 949-965-8 | CAS number: -
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
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- Specific investigations
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- Additional toxicological data
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:
- From December 13, 2018 to December 20, 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- Qualifier:
- according to
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- effusion method: vapour pressure balance
- Key result
- Test no.:
- #1
- Temp.:
- ca. 25 °C
- Vapour pressure:
- ca. 0.008 Pa
- Conclusions:
- Under the study conditions, the vapoure pressure of the test substance was determined to be 7.9 x 10-3 Pa at 25°C.
- Executive summary:
A study was conducted to determine the vapour pressure of the test substance using the vapoure pressure balance method, according to OECD Guideline 104 and EU Method A4, in compliance with GLP. A total of 7 runs were completed for the main sequence and all 7 runs were used as equilibrium had been reached. Under the study conditions, the vapoure pressure of the test substance was determined to be 7.9 x 10-3 Pa at 25°C (Ford, 2019).
Reference
Results
Recorded temperatures, mass differences and the resulting calculated values of vapor pressure are shown in the following tables:
Run 1
Table1– Vapor Pressure Data
Temperature (ºC) | Temperature (K) | Reciprocal Temperature (K^{-1}) | Mass Difference (µg) | Mass Difference (kg) | Vapor Pressure (Pa) | Log_{10}Vp | |||||||
35 | 308.15 | 0.003245 | 4.26 | 4.260e-09 | 0.00591 | -2.22841 | |||||||
36 | 309.15 | 0.003235 | 5.14 | 5.140e-09 | 0.00714 | -2.14630 | |||||||
37 | 310.15 | 0.003224 | 3.21 | 3.210e-09 | 0.00446 | -2.35067 | |||||||
38 | 311.15 | 0.003214 | 4.00 | 4.000e-09 | 0.00555 | -2.25571 | |||||||
39 | 312.15 | 0.003204 | 4.81 | 4.810e-09 | 0.00668 | -2.17522 | |||||||
40 | 313.15 | 0.003193 | 4.36 | 4.360e-09 | 0.00605 | -2.21824 | |||||||
41 | 314.15 | 0.003183 | 6.36 | 6.360e-09 | 0.00883 | -2.05404 | |||||||
42 | 315.15 | 0.003173 | 7.47 | 7.470e-09 | 0.01037 | -1.98422 | |||||||
43 | 316.15 | 0.003163 | 8.67 | 8.670e-09 | 0.01204 | -1.91937 | |||||||
44 | 317.15 | 0.003153 | 8.56 | 8.560e-09 | 0.01188 | -1.92518 | |||||||
45 | 318.15 | 0.003143 | 10.07 | 1.007e-08 | 0.01398 | -1.85449 |
A plot of Log_{10}(vapor pressure (Pa)) versus reciprocal temperature (1/T(K)) for Run 1 gives the following statistical data using an unweighted least squares treatment (For graph run, kindly refer to the attached background material section of the IUCLID).
Slope: | -4.17 x 10^{3} | ||
Standard error in slope: | 788
| ||
Intercept: | 11.2 | ||
Standard error in intercept: | 2.52 |
The results obtained indicate the following vapor pressure relationship:
Log_{10}(Vp (Pa)) = -4.17 x 10^{3}/temp(K) + 11.2
The above yields a vapor pressure (Pa) at 298.15 K with a common logarithm of -2.77.
Run 2
Table2– Vapor Pressure Data
Temperature (ºC) | Temperature (K) | Reciprocal Temperature (K^{-1}) | Mass Difference (µg) | Mass Difference (kg) | Vapor Pressure (Pa) | Log_{10}Vp | |||||||
35 | 308.15 | 0.003245 | 4.79 | 4.790e-09 | 0.00665 | -2.17718 | |||||||
36 | 309.15 | 0.003235 | 4.79 | 4.790e-09 | 0.00665 | -2.17718 | |||||||
37 | 310.15 | 0.003224 | 4.28 | 4.280e-09 | 0.00594 | -2.22621 | |||||||
38 | 311.15 | 0.003214 | 4.37 | 4.370e-09 | 0.00607 | -2.21681 | |||||||
39 | 312.15 | 0.003204 | 5.82 | 5.820e-09 | 0.00808 | -2.09259 | |||||||
40 | 313.15 | 0.003193 | 5.05 | 5.050e-09 | 0.00701 | -2.15428 | |||||||
41 | 314.15 | 0.003183 | 6.74 | 6.740e-09 | 0.00936 | -2.02872 | |||||||
42 | 315.15 | 0.003173 | 6.47 | 6.470e-09 | 0.00898 | -2.04672 | |||||||
43 | 316.15 | 0.003163 | 8.11 | 8.110e-09 | 0.01126 | -1.94846 | |||||||
44 | 317.15 | 0.003153 | 8.20 | 8.200e-09 | 0.01138 | -1.94386 | |||||||
45 | 318.15 | 0.003143 | 9.50 | 9.500e-09 | 0.01319 | -1.87976 |
A plot of Log_{10}(vapor pressure (Pa)) versus reciprocal temperature (1/T(K)) for Run 2 gives the following statistical data using an unweighted least squares treatment (For graph run, kindly refer to the attached background material section of the IUCLID).
Slope: | -3.24 x 10^{3} | ||
Standard error in slope: | 477
| ||
Intercept: | 8.28 | ||
Standard error in intercept: | 1.52 |
The results obtained indicate the following vapor pressure relationship:
Log_{10}(Vp (Pa)) = -3.24 x 10^{3}/temp(K) + 8.28
The above yields a vapor pressure (Pa) at 298.15 K with a common logarithm of -2.60.
Run 3
Table3– Vapor Pressure Data
Temperature (ºC) | Temperature (K) | Reciprocal Temperature (K^{-1}) | Mass Difference (µg) | Mass Difference (kg) | Vapor Pressure (Pa) | Log_{10}Vp | |||||||
35 | 308.15 | 0.003245 | 4.36 | 4.360e-09 | 0.00605 | -2.21824 | |||||||
36 | 309.15 | 0.003235 | 3.33 | 3.330e-09 | 0.00462 | -2.33536 | |||||||
37 | 310.15 | 0.003224 | 3.41 | 3.410e-09 | 0.00473 | -2.32514 | |||||||
38 | 311.15 | 0.003214 | 4.78 | 4.780e-09 | 0.00664 | -2.17783 | |||||||
39 | 312.15 | 0.003204 | 5.34 | 5.340e-09 | 0.00741 | -2.13018 | |||||||
40 | 313.15 | 0.003193 | 4.79 | 4.790e-09 | 0.00665 | -2.17718 | |||||||
41 | 314.15 | 0.003183 | 6.44 | 6.440e-09 | 0.00894 | -2.04866 | |||||||
42 | 315.15 | 0.003173 | 6.38 | 6.380e-09 | 0.00886 | -2.05257 | |||||||
43 | 316.15 | 0.003163 | 8.67 | 8.670e-09 | 0.01204 | -1.91937 | |||||||
44 | 317.15 | 0.003153 | 9.14 | 9.140e-09 | 0.01269 | -1.89654 | |||||||
45 | 318.15 | 0.003143 | 9.66 | 9.660e-09 | 0.01341 | -1.87257 |
A plot of Log_{10}(vapor pressure (Pa)) versus reciprocal temperature (1/T(K)) for Run 3 gives the following statistical data using an unweighted least squares treatment (For graph run, kindly refer to the attached background material section of the IUCLID).
Slope: | -4.47 x 10^{3} | ||
Standard error in slope: | 573
| ||
Intercept: | 12.2 | ||
Standard error in intercept: | 1.83 |
The results obtained indicate the following vapor pressure relationship:
Log_{10}(Vp (Pa)) = -4.47 x 10^{3}/temp(K) + 12.2
The above yields a vapor pressure (Pa) at 298.15 K with a common logarithm of -2.82.
Run 4
Table4– Vapor Pressure Data
Temperature (ºC) | Temperature (K) | Reciprocal Temperature (K^{-1}) | Mass Difference (µg) | Mass Difference (kg) | Vapor Pressure (Pa) | Log_{10}Vp | |||||||
35 | 308.15 | 0.003245 | 3.18 | 3.180e-09 | 0.00441 | -2.35556 | |||||||
36 | 309.15 | 0.003235 | 4.29 | 4.290e-09 | 0.00596 | -2.22475 | |||||||
37 | 310.15 | 0.003224 | 3.84 | 3.840e-09 | 0.00533 | -2.27327 | |||||||
38 | 311.15 | 0.003214 | 4.25 | 4.250e-09 | 0.00590 | -2.22915 | |||||||
39 | 312.15 | 0.003204 | 4.87 | 4.870e-09 | 0.00676 | -2.17005 | |||||||
40 | 313.15 | 0.003193 | 5.63 | 5.630e-09 | 0.00782 | -2.10679 | |||||||
41 | 314.15 | 0.003183 | 6.04 | 6.040e-09 | 0.00839 | -2.07624 | |||||||
42 | 315.15 | 0.003173 | 6.13 | 6.130e-09 | 0.00851 | -2.07007 | |||||||
43 | 316.15 | 0.003163 | 7.59 | 7.590e-09 | 0.01054 | -1.97716 | |||||||
44 | 317.15 | 0.003153 | 8.67 | 8.670e-09 | 0.01204 | -1.91937 | |||||||
45 | 318.15 | 0.003143 | 8.99 | 8.990e-09 | 0.01248 | -1.90379 |
A plot of Log_{10}(vapor pressure (Pa)) versus reciprocal temperature (1/T(K)) for Run 4 gives the following statistical data using an unweighted least squares treatment (For graph run, kindly refer to the attached background material section of the IUCLID).
Slope: | -4.25 x 10^{3} | ||
Standard error in slope: | 294
| ||
Intercept: | 11.5 | ||
Standard error in intercept: | 0.939 |
The results obtained indicate the following vapor pressure relationship:
Log_{10}(Vp (Pa)) = -4.25 x 10^{3}/temp(K) + 11.5
The above yields a vapor pressure (Pa) at 298.15 K with a common logarithm of -2.80.
Run 5
Table5– Vapor Pressure Data
Temperature (ºC) | Temperature (K) | Reciprocal Temperature (K^{-1}) | Mass Difference (µg) | Mass Difference (kg) | Vapor Pressure (Pa) | Log_{10}Vp | |||||||
35 | 308.15 | 0.003245 | 3.71 | 3.710e-09 | 0.00515 | -2.28819 | |||||||
36 | 309.15 | 0.003235 | 4.06 | 4.060e-09 | 0.00564 | -2.24872 | |||||||
37 | 310.15 | 0.003224 | 3.98 | 3.980e-09 | 0.00553 | -2.25727 | |||||||
38 | 311.15 | 0.003214 | 4.03 | 4.030e-09 | 0.00559 | -2.25259 | |||||||
39 | 312.15 | 0.003204 | 3.99 | 3.990e-09 | 0.00554 | -2.25649 | |||||||
40 | 313.15 | 0.003193 | 5.49 | 5.490e-09 | 0.00762 | -2.11805 | |||||||
41 | 314.15 | 0.003183 | 5.11 | 5.110e-09 | 0.00709 | -2.14935 | |||||||
42 | 315.15 | 0.003173 | 6.46 | 6.460e-09 | 0.00897 | -2.04721 | |||||||
43 | 316.15 | 0.003163 | 7.71 | 7.710e-09 | 0.01070 | -1.97062 | |||||||
44 | 317.15 | 0.003153 | 7.58 | 7.580e-09 | 0.01052 | -1.97798 | |||||||
45 | 318.15 | 0.003143 | 9.13 | 9.130e-09 | 0.01267 | -1.89722 |
A plot of Log_{10}(vapor pressure (Pa)) versus reciprocal temperature (1/T(K)) for Run 5 gives the following statistical data using an unweighted least squares treatment (For graph run, kindly refer to the attached background material section of the IUCLID).
Slope: | -3.92 x 10^{3} | ||
Standard error in slope: | 434
| ||
Intercept: | 10.4 | ||
Standard error in intercept: | 1.39 |
The results obtained indicate the following vapor pressure relationship:
Log_{10}(Vp (Pa)) = -3.92 x 10^{3}/temp(K) + 10.4
The above yields a vapor pressure (Pa) at 298.15 K with a common logarithm of -2.76.
Run 6
Table6– Vapor Pressure Data
Temperature (ºC) | Temperature (K) | Reciprocal Temperature (K^{-1}) | Mass Difference (µg) | Mass Difference (kg) | Vapor Pressure (Pa) | Log_{10}Vp | |||||||
35 | 308.15 | 0.003245 | 3.64 | 3.640e-09 | 0.00505 | -2.29671 | |||||||
36 | 309.15 | 0.003235 | 4.09 | 4.090e-09 | 0.00568 | -2.24565 | |||||||
37 | 310.15 | 0.003224 | 3.66 | 3.660e-09 | 0.00508 | -2.29414 | |||||||
38 | 311.15 | 0.003214 | 4.46 | 4.460e-09 | 0.00619 | -2.20831 | |||||||
39 | 312.15 | 0.003204 | 4.11 | 4.110e-09 | 0.00571 | -2.24336 | |||||||
40 | 313.15 | 0.003193 | 5.42 | 5.420e-09 | 0.00752 | -2.12378 | |||||||
41 | 314.15 | 0.003183 | 5.73 | 5.730e-09 | 0.00795 | -2.09963 | |||||||
42 | 315.15 | 0.003173 | 5.74 | 5.740e-09 | 0.00797 | -2.09854 | |||||||
43 | 316.15 | 0.003163 | 5.97 | 5.970e-09 | 0.00829 | -2.08145 | |||||||
44 | 317.15 | 0.003153 | 8.17 | 8.170e-09 | 0.01134 | -1.94539 | |||||||
45 | 318.15 | 0.003143 | 8.89 | 8.890e-09 | 0.01234 | -1.90868 |
A plot of Log_{10}(vapor pressure (Pa)) versus reciprocal temperature (1/T(K)) for Run 6 gives the following statistical data using an unweighted least squares treatment (For graph run, kindly refer to the attached background material section of the IUCLID).
Slope: | -3.68 x 10^{3} | ||
Standard error in slope: | 414
| ||
Intercept: | 9.61 | ||
Standard error in intercept: | 1.32 |
The results obtained indicate the following vapor pressure relationship:
Log_{10}(Vp (Pa)) = -3.68 x 10^{3}/temp(K) + 9.61
The above yields a vapor pressure (Pa) at 298.15 K with a common logarithm of -2.73.
Run 7
Table7– Vapor Pressure Data
Temperature (ºC) | Temperature (K) | Reciprocal Temperature (K^{-1}) | Mass Difference (µg) | Mass Difference (kg) | Vapor Pressure (Pa) | Log_{10}Vp | |||||||
35 | 308.15 | 0.003245 | 3.97 | 3.970e-09 | 0.00551 | -2.25885 | |||||||
36 | 309.15 | 0.003235 | 4.03 | 4.030e-09 | 0.00559 | -2.25259 | |||||||
37 | 310.15 | 0.003224 | 3.74 | 3.740e-09 | 0.00519 | -2.28483 | |||||||
38 | 311.15 | 0.003214 | 4.33 | 4.330e-09 | 0.00601 | -2.22113 | |||||||
39 | 312.15 | 0.003204 | 4.14 | 4.140e-09 | 0.00575 | -2.24033 | |||||||
40 | 313.15 | 0.003193 | 4.91 | 4.910e-09 | 0.00682 | -2.16622 | |||||||
41 | 314.15 | 0.003183 | 5.29 | 5.290e-09 | 0.00734 | -2.13430 | |||||||
42 | 315.15 | 0.003173 | 6.69 | 6.690e-09 | 0.00929 | -2.03198 | |||||||
43 | 316.15 | 0.003163 | 7.01 | 7.010e-09 | 0.00973 | -2.01189 | |||||||
44 | 317.15 | 0.003153 | 8.59 | 8.590e-09 | 0.01193 | -1.92336 | |||||||
45 | 318.15 | 0.003143 | 7.14 | 7.140e-09 | 0.00991 | -2.00393 |
A plot of Log_{10}(vapor pressure (Pa)) versus reciprocal temperature (1/T(K)) for Run 7 gives the following statistical data using an unweighted least squares treatment (For graph run, kindly refer to the attached background material section of the IUCLID).
Slope: | -3.46 x 10^{3} | ||
Standard error in slope: | 452
| ||
Intercept: | 8.91 | ||
Standard error in intercept: | 1.45 |
The results obtained indicate the following vapor pressure relationship:
Log_{10}(Vp (Pa)) = -3.46 x 10^{3}/temp(K) + 8.91
The above yields a vapor pressure (Pa) at 298.15 K with a common logarithm of -2.69.
The values of vapor pressure at 25 °C, extrapolated from each graph, are summarized in the following table:
Table 8 Summary of Vapor Pressure Data
Run | Log_{10}[Vp(25 ºC)] | ||
1 | -2.07 | ||
2 | -2.09 | ||
3 | -2.08 | ||
4 | -2.11 | ||
5 | -2.11 | ||
6 | -2.12 | ||
7 | -2.12 | ||
Mean | -2.10 | ||
Vapor Pressure | 7.93 x 10^{-3}Pa |
Discussion
The test substance did not change in appearance under the conditions used in the determination. A total of 7 runs were completed for the main sequence. All 7 runs were used as equilibrium had been reached.The results may represent rounded values obtained by calculations based on the exact raw data.
Conclusion
The vapor pressure of the test substance has been determined to be 7.9 x 10^{-3 }Pa at 25 ºC.
Description of key information
The vapoure pressure of the test substance was determined using the vapoure pressure balance method, according to OECD Guideline 104 and EU Method A.4 (Ford, 2019).
Key value for chemical safety assessment
- Vapour pressure:
- 0.008 Pa
- at the temperature of:
- 25 °C
Additional information
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