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EC number: 700-673-7 | CAS number: 132638-45-0
- 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
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- Explosiveness
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- Oxidation reduction potential
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- Stability: thermal, sunlight, metals
- pH
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- 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
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- Toxicological Summary
- Toxicokinetics, metabolism and distribution
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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:
- 10-01-2012 to 19-01-2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline study performed under GLP. All relevant validity criteria were met.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- inspected: July 2012; signature: November 2012
- Type of method:
- gas saturation method
- Temp.:
- 25 °C
- Vapour pressure:
- 0.1 Pa
- Conclusions:
- The vapour pressure of the test item has been determined to be 0.1 Pa at 25 °C.
- Executive summary:
The vapour pressure was determined using EU Method A.4 and OECD TG 104 using the gas saturation method under GLP. The test item vapour pressure was calculated by extrapolation of the measured vapour pressure curve encompassing three temperatures under the conditions of the method. The calculated vapour pressure was 0.1 Pa at 25 °C.
Reference
Table 2: Results of the vapour pressure determinations
Saturator Column. |
Temp. [°C] |
Volume, V* [mL] |
Mass of Test Item in Trap 1 [μg] |
Mass of Test Item in Trap 2 [μg] |
Total Mass of Test Item [μg] |
Vapour Pressure [Pa] |
Average Vapour Pressure [Pa] |
A B C |
30 |
39654 52872 66096 |
665.080 932.880 1194.880 |
none detected |
665.080 932.880 1194.880 |
0.215 0.227 0.232 |
0.225 |
A B C |
40 |
14789 19719 24648 |
879.480 1185.160 1554.560 |
none detected |
879.480 1185.160 1554.560 |
0.789 0.797 0.837 |
0.808 |
A B C |
50 |
6388 8518 10647 |
1198.920 1629.320 2116.200
|
none detected |
1198.920 1629.320 2116.200
|
2.57 2.62 2.72 |
2.64 |
*Corrected volume at test temperature as calculated under “Volume correction”
Table 3: Data of the vapour pressure curve
T [°C] |
1/T [K] |
ln Pvp |
30 |
3.3E-03 3.3E-03 3.3E-03 |
-1.54 -1.48 -1.46 |
40 |
3.19E-03 3.19E-03 3.19E-03 |
-0.24 -0.23 -0.18 |
50 |
3.09E-03 3.09E-03 3.09E-03 |
0.94 0.96 1.00 |
The tabulated results represent rounded-off values obtained by calculations based on the exact raw data.
Y = b x + a
where:
Y = ln (Pvp mean in Pa)
x = 1/T (K)
b = - 12062.22 (slope)
a = 38.30 (y-axis intercept)
r2= 0.9993
Validation:
The linearity of the detector response with respect to concentration was assessed over the concentration range of 20.5 to 205 mg/L. This was satisfactory with a correlation coefficient of 1.000 being obtained.
Discussion:
To ensure saturation control, three different flow rates were used at each temperature. From the data in Table 2 it can be clearly seen that higher flow rates did not lead to lower vapour pressures, which means that the nitrogen was saturated with test item under the conditions of the test.
Description of key information
Vapour Pressure: 0.1 at 25 °C, EU Method A.1 – Gas Saturation Method, 2012
Key value for chemical safety assessment
- Vapour pressure:
- 0.1 Pa
- at the temperature of:
- 25 °C
Additional information
The vapour pressure was determined using EU Method A.4 and OECD TG 104 using the gas saturation method under GLP. The test item vapour pressure was calculated by extrapolation of the measured vapour pressure curve encompassing three temperatures under the conditions of the method. The calculated vapour pressure was 0.1 Pa at 25 °C.
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