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EC number: 208-686-5 | CAS number: 538-23-8
- 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:
- From 27-Oct-2017 to 15-Jan-2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- OECD guideline study, conducted under GLP. Test substance adequately identified. Therefore full validation applies.
- 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
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7950 (Vapor Pressure)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: isothermal thermogravimetry
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- >= 0 - <= 0 Pa
- Key result
- Temp.:
- 20 °C
- Vapour pressure:
- >= 0 - <= 0 Pa
- Conclusions:
- The isothermal TGA effusion method was applied for the determination of the vapour pressure of COCONAD RK.
The vapour pressure of the test item at 20 °C (293K) and 25 °C (298K) was:
at 20°C: 2.1 x 10-8 - 3.8 x 10-7 Pa
at 25°C: 6.0 x 10-8 - 9.3 x 10-7 Pa - Executive summary:
The objective of this study is to determine the following physico-chemical properties for COCONAD RK
The isothermal TGA effusion method was applied for the determination of the vapour pressure of COCONAD RK.
The vapour pressure of the test item at 20 °C (293K) and 25 °C (298K) was:
20 °C
25 °C
[Pa]
[mm Hg]
[Pa]
[mm Hg]
Test item
2.1 x 10-8- 3.8 x 10-7
1.6 x 10-10- 2.9 x 10-9
6.0 x 10-8- 9.3 x 10-7
4.5 x 10-10- 7.0 x 10-9
Reference
The results of the isothermal TGA analysis for the test item are given inTable 1.
Using the results of Experiment 1 and Experiment 2, the curve of log PT of the test item as function of the reciprocal temperature had a coefficient of correlation <0.99. Therefore, a third experiment was performed. Coefficient of correlation using the results of Experiment 1 -Experiment 3 and Experiment 2 - Experiment 3 was >0.99 however <0.99 when using the results of Experiment 1 and Experiment 2. Therefore it was decided to report a range for the vapour pressure using the plot of the log PT of the test item as function of the reciprocal temperatures for each individual experiment.
Table 1
Results of the isothermal TGA analysis
Experiment |
Temperature |
Weight loss |
νT |
logνT |
logPT |
PT |
|
|
|
|
|
|
|
1 |
140 |
0.937755 |
1.12´10-4 |
-3.95 |
0.08 |
1.2 |
|
150 |
2.05449 |
2.45´10-4 |
-3.61 |
0.52 |
3.3 |
|
160 |
4.55225 |
5.43´10-4 |
-3.26 |
0.96 |
9.1 |
|
170 |
9.30061 |
1.11´10-3 |
-2.95 |
1.36 |
23 |
|
|
|
|
|
|
|
2 |
140 |
1.42027 |
1.70´10-4 |
-3.77 |
0.31 |
2.0 |
|
150 |
2.83320 |
3.38´10-4 |
-3.47 |
0.69 |
4.9 |
|
160 |
5.47995 |
6.54´10-4 |
-3.18 |
1.06 |
12 |
|
170 |
10.5334 |
1.26´10-3 |
-2.90 |
1.42 |
27 |
|
|
|
|
|
|
|
3 |
140 |
1.02948 |
1.23´10-4 |
-3.91 |
0.13 |
1.4 |
|
150 |
2.25194 |
2.69´10-4 |
-3.57 |
0.57 |
3.7 |
|
160 |
4.72198 |
5.64´10-4 |
-3.25 |
0.98 |
9.5 |
|
170 |
9.31692 |
1.11´10-3 |
-2.95 |
1.36 |
23 |
|
|
|
|
|
|
|
The plot of the log PT of the test item as function of the reciprocal temperatures obtained with Experiment 1 gives the following equation for the curve:
log PT= -7816´1/T + 19.0 (r = 0.99992, n = 4).
The results of the vapour pressure at 20 °C and 25 °C are given in Table 2.
The plot of the log PT of the test item as function of the reciprocal temperatures obtained with Experiment 2 gives the following equation for the curve:
log PT= -6789´1/T + 16.7 (r = 0.99996, n = 4).
The results of the vapour pressure at 20 °C and 25 °Care given in Table 3.
Table 2
Vapour pressure of the test item (Experiment 1)
Temperature |
logPT |
PT |
PT |
20 |
-7.67 |
2.1´10-8 |
1.6´10-10 |
25 |
-7.22 |
6.0´10-8 |
4.5´10-10 |
Table 3
Vapour pressure of the test item (Experiment 2)
Temperature |
logPT |
PT |
PT |
20 |
-6.42 |
3.8´10-7 |
2.9´10-9 |
25 |
-6.03 |
9.3´10-7 |
7.0´10-9 |
Table 4
Vapour pressure of the test item (Experiment 3)
Temperature |
logPT |
PT |
PT |
20 |
-7.28 |
5.3´10-8 |
4.0´10-10 |
25 |
-6.85 |
1.4´10-7 |
1.1´10-9 |
The plot of the log PT of the test item as function of the reciprocal temperatures obtained with Experiment 3 gives the following equation for the curve:
log PT= -7482´1/T + 18.3 (r = 0.99994, n = 4).
The results of the vapour pressure at 20 °C and 25 °C are given in Table 4.
Description of key information
>= 6.0E-8 to <= 9.3E-7 Pa at 25 °C
>= 2.1E-8 to <= 3.8E-7 Pa at 20 °C
(effusion method: isothermal thermogravimetry, OECD 104)
A fully reliable experimental study, conducted according to OECD/EU guideline, effusion method, and under GLP, is available. It is considered as a key study. The result is retained as key data.
Key value for chemical safety assessment
Additional information
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