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EC number: 205-459-2 | CAS number: 141-12-8
- 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
Water solubility
Administrative data
Link to relevant study record(s)
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 21 November 2016 - 01 December 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- The determination of water solubility was performed using the slow stirring method adapted from OECD Guideline No 123. This study was considered as reliable without restrictions because it was conducted under GLP.
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to other study
- Qualifier:
- according to guideline
- Guideline:
- other: adapted from OECD Guideline 123
- Deviations:
- no
- Principles of method if other than guideline:
- In a stirring vessel maintained at 20 +/- 0.5°C, ultra-pure water containing the test item was slow stirred. The stirring rate was adjusted in order to form a minimal vortex. The aim of this method was to prevent the formation of emulsions when saturating water. That can occur with the shake flask method and lead to a solubility overestimation. The water solubility was given by the mass concentration of the substance in water when this had reached a plateau as a function of time. A second experiment is performed in the same conditions
- GLP compliance:
- yes
- Type of method:
- other: slow-stirring method
- Water solubility:
- 34.76 mg/L
- Temp.:
- 20 °C
- pH:
- >= 4.26 - <= 6.35
- Remarks on result:
- other: First determination (vessel 1)
- Water solubility:
- ca. 34.26 mg/L
- Temp.:
- 20 °C
- pH:
- >= 4.55 - <= 6.35
- Remarks on result:
- other: Second determination (vessel 2)
- Key result
- Water solubility:
- ca. 34.51 mg/L
- Temp.:
- 20 °C
- pH:
- >= 4.26 - <= 6.35
- Remarks on result:
- other: Mean of two solubility values obtained in two different experiments.
- Conclusions:
- The means of the five samples before the equilibrium state declaration (01/12/2016 13h) for each vessel are:
- Vessel 1: 34.76 mg/L
- Vessel 2: 34.26 mg/L
The difference observed among the two determinations is 1.5%, which proves that an acceptable repeatability is obtained (the OECD 105 acceptability criterion for the maximum difference between two tests by the column elution method is < 30%, and < 15% for the flask method).
The NERYL ACETATE solubility in water is thus given by the mean of the values obtained for the two ultrapure vessels:
NERYL ACETATE water solubility = 34.51 mg/L at 20 +/- 0.5°C
These solubility values were calculated considering the test item major constituent representing 90.9% of the test item.
The NERYL ACETATE solubility in water, corresponding to the mean of two determinations, was 34.51 mg/L at 20 +/- 0.5°C. - Executive summary:
A study was performed to assess the water solubility of the test item NERYL ACETATE by the slow stirring method.
Two determinations in ultrapure water were carried out. 5 mL of the test item were carefully poured at the top of 250 mL of water thermostated at 20 + 0.5°C. The systems were allowed to equilibrate until the test item concentration reached a plateau. The test item concentrations were monitored by HPLC-DAD.
The NERYL ACETATE solubility in water based on the mean of the two determinations was 34.51 mg/L at 20 +/- 0.5°C.
Reference
Preliminary test
10.3 mg of the test item were introduced into a 100 mL flask. The test item was not dissolved by 100 mL of water after 24h.
The approximate solubility determined by the preliminary test was lower then 100 mg/L.
Main test:
The following table presents the concentrations (in mg/L) obtained during the study (the sampling in vessel 2 only started when the concentrations observed in vessel 1 approached an equilibrium state):
Sampling date | Vessel 1 | Vessel 2 | |
21/11/2016 08:30 | 7.06 | No sampling | |
21/11/2016 13:00 | 32.15 | No sampling | |
22/11/2016 08:30 | 40.14 | No sampling | |
22/11/2016 13:00 | 39.07 | No sampling | |
22/11/2016 18:00 | 36.49 | No sampling | |
23/11/2016 08:00 | 44.86 | No sampling | |
23/11/2016 13:00 | 52.67 | No sampling | |
23/11/2016 18:00 | 35.15 | No sampling | |
24/11/2016 08:00 | 34.73 | No sampling | |
24/11/2016 13:00 | 35.81 | No sampling | |
24/11/2016 18:00 | 34.79 | 36.07 | |
25/11/2016 08:00 | 33.38 | 35.45 | |
25/11/2016 13:00 | 35.49 | 33.37 | |
28/11/2016 08:00 | 34.66 | 34.43 | |
28/11/2016 13:00 | 33.83 | 31.68 | |
29/11/2016 08:00 | 36.64 | 35.54 | |
29/11/2016 13:00 | n.a.* | n.a.* | |
29/11/2016 18:00 | n.a.* | n.a.* | |
30/11/2016 08:00 | 34.79 | 33.97 | |
30/11/2016 13:00 | 34.79 | 34.29 | |
30/11/2016 18:00 | 34.88 | 34.94 | |
01/12/2016 08:00 | 34.35 | 34.46 | |
01/12/2016 13:00 | 35.00 | 33.63 | |
01/12/2016 18:00 | 36.34 | 35.04 |
* n.a.: non available due to an analytical instrument problem.
These concentrations are presented as a function of time in the figure.
The pH values in both systems were measured at the beginning and at the end of the experiments. The pH values were:
- beginning of the experiment : 6.35 in both systems
- end of the experiment : 4.26 in vessel 1 and 4.55 in vessel 2.
The acidification observed probably can be due to a minor test item degradation product with acidic properties and/or a dissolution of carbon dioxide from the air. Since the test water was not buffered, a low concentration of an acidic compound can cause a high decrease of pH.
Equilibrium demonstration:
The equilibrium is declared as reached on 01/12/2016 at 13h. The following table demonstrates that the equilibrium criteria are valid for each vessel at that moment.
Criteria | Vessel 1 | Vessel 2 |
Maximum difference observed in the 5 last samples (must be < 30%) |
Min: 34.35 mg/L Max: 35.00 mg/L Difference: 1.9% |
Min: 33.63 mg/L Max: 34.94 mg/L Difference: 3.8% |
Conclusion | Equilibrium reached | Equilibrium reached |
Description of key information
The water solubility of neryl acetate is 34.51 mg/L at 20 °C.
Key value for chemical safety assessment
- Water solubility:
- 34.51 mg/L
- at the temperature of:
- 20 °C
Additional information
A study was performed to measure the water solubility of neryl acetate with the slow-stirring method and according to OECD guideline 105 and 123. The result was considered with a reliability of 1 (reliable without restrictions) because it is scientifically acceptable and obtained under GLP.
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