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EC number: 500-457-0 | CAS number: 160901-19-9 1 - 2.5 moles ethoxylated
- 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
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- 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:
- 20 Feb - 18 Mar 2015
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- GLP compliance:
- yes
- Type of method:
- static method
- Temp.:
- 20 °C
- Vapour pressure:
- 6 Pa
- Remarks on result:
- other: Mean of Runs 4 and 5. For transition data, see Any other information on results incl. tables.
- Temp.:
- 20.6 °C
- Vapour pressure:
- 0.81 Pa
- Remarks on result:
- other: direct measurement, see Any other information on results
Reference
Full test results:
Run 1:
Temperature/K |
Pressure/Pa |
302.15 |
60 |
313.35 |
90 |
324.45 |
160 |
333.55 |
210 |
343.15 |
340 |
353.05 |
480 |
364.65 |
700 |
Extrapolated value at 293.15 K (20 °C): 36 Pa
Run 2:
Temperature/K |
Pressure/Pa |
312.75 |
210 |
324.35 |
330 |
331.85 |
440 |
333.55 |
210 |
345.45 |
650 |
354.65 |
850 |
364.55 |
1150 |
Extrapolated value at 293.15 K (20 °C): 98 Pa
Run 3:
Temperature/K |
Pressure/Pa |
301.55 |
30.56 |
313.45 |
58.38 |
323.35 |
78 |
331.65 |
100.31 |
341.35 |
130 |
354.15 |
190 |
361.85 |
240 |
Extrapolated value at 293.15 K (20 °C): 24 Pa
Run 4:
Temperature/K |
Pressure/Pa |
302.85 |
10.35 |
312.85 |
36.55 |
323.35 |
78 |
322.65 |
67.53 |
333.45 |
150 |
343.05 |
190 |
351.55 |
250 |
363.15 |
360 |
374.95 |
480 |
Extrapolated value at 293.15 K (20 °C): 9 Pa
Run 5:
Temperature/K |
Pressure/Pa |
293.75 |
0.81 |
303.95 |
11.82 |
313.35 |
22.46 |
323.75 |
33.9 |
332.25 |
42.01 |
345.15 |
70.46 |
351.85 |
91.37 |
364.35 |
160 |
Extrapolated value at 293.15 K (20 °C): 3 Pa
Runs 1 -3 remark: The sample was shaken before use such that the small amount of white, settled, solid was evenly distributed throughout the sample.
Run 4 remark: The sample was shaken before use such that the small amount of white, settled, solid was evenly distributed throughout sample. Sample was degassed overnight with stirring.
Run 5 remark:
The sample was shaken before use such that the small amount of white, settled, solid was evenly distributed throughout sample. Sample was degassed overnight with stirring. During testing the sample became a clear colourless solution. Upon cooling overnight the sample returned to a cloudy solution.
Comments:
Five vapour pressure experiments were carried out in total. Runs 1 to 3 gave higher pressure readings than expected. It was initially suspected that the sample needed either a longer time or a more efficient way to de-gas. Two further analyses were conducted using a magnetic stirrer to aid the degassing overnight. During the analysis a phase change was observed as the suspended particles went into solution. This was conformed in the data obtained.
As per the EC440/2008 test protocol, when phase change is observed during the analysis, the temperature at which the phase change was observed (i.e. 39.7 °C and 60.3 °C in Run 4; and 30.8 °C and 40.2 °C in Run 5), then 10 °C and 20 °C above and below the phase transitions temperatures shall be reported. Due to the starting temperatures used in runs 4 and 5 it is not possible to report the vapour pressure results for a temperature 20 °C below the phase change.
The results of testing are highly dependent on the composition and physical nature of the sample. In dust explosion testing, for example, the particle size distribution, moisture content, particle shape and preparation method can all markedly affect results. For this reason, any change in manufacturing/handling procedures or composition should be accompanied by a review of the relevant data.
Due to the nature of the sample and the fact that one of the components of the test item undergoes phase change the results of testing should be used with caution and are suspected to be high. A direct measurement at 20.6°C during test Run 5 of 0.81 Pa should be taken into consideration.
Description of key information
6 Pa at 20 °C (EU A.4, static method)
0.81 Pa at 20.6 °C (direct measurement)
Key value for chemical safety assessment
Additional information
Due to the nature of the sample and the fact that one of the components of the test item undergoes phase change the results of testing should be used with caution and are suspected to be high (three first test runs were discarded). A direct measurement at 20.6 °C during test Run 5 of 0.81 Pa can be taken into consideration.
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