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EC number: 270-695-5 | CAS number: 68476-55-1
- 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:
- 08/12/2008 - 08/04/2009
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP compliant, guideline study, experimental study. No restrictions, fully adequate for assessment
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Deviations:
- yes
- Remarks:
- An equilibrium temperature of 23 °C (ambient temperature) was used rather than 30°C to reduce the risk of evaporation of a significant fraction of the test item constituents
- GLP compliance:
- yes
- Type of method:
- flask method
- Water solubility:
- ca. 59 mg/L
- Temp.:
- 20 °C
- pH:
- 7
- Water solubility:
- ca. 71 mg/L
- Temp.:
- 20 °C
- pH:
- 7
- Details on results:
- Solubility in water slightly increases with the mass of test item applied in the experiment, due to the test item being a mixture of aromatic hydrocarbons not a single compound. Each constituent will contribute to the overall solubility, depending on its individual solubility and its mass in the test fraction. Therefore two values for solubility are provided, ca. 59 mg/L for tests with ca. 4.5 g test item per one litre of water and ca. 71 mg/L for tests with ca. 47 g of test item per one litre of water. Test pH not stated, but asssumed to be 7.
- Conclusions:
- Interpretation of results (migrated information): slightly soluble (0.1-100 mg/L)
Solubility in water increases with the mass of test substance applied in the experiment. Solubility is calculated as ca. 59 mg/L for tests with ca. 4.5 g test item per one litre of water and ca. 71 mg/L for tests with ca. 47 g test item per one litre of water. - Executive summary:
The study is GLP compliant and carried out to a standard guideline, therefore the data is considerd reliable. Solubility is calculated as ca. 59 mg/L for tests with ca. 4.5 g test item per one litre of water and ca. 71 mg/L for tests with ca. 47 g test item per one litre of water.
- Endpoint:
- water solubility
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 06/06/2007 - 16/10/2007
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: GLP compliant, guideline study, available as unpublished report, minor restrictions but otherwise adequate for assessment
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- flask method
- Water solubility:
- 52 mg/L
- Temp.:
- 20 °C
- pH:
- 6.1 - 6.8
- Details on results:
- Reported as 52 ± 12 mg/L
The preliminary test indicated that the water solubility of the test item is <40mg/l (20mg of test item were not completely dissolved in 500ml water after 3 days stirring). The flask method was therefore used for the main study. The test temperature was decreased from 30°C to 23°C to avoid evaporation of the test substance. Two test concentrations were used 0.5g and 5g test substance and stirred for 24, 48 and 72 hours. The concentration of dissolved test item decreased over time, and concentrations varied by more than 15% in the last two vessels at both test concentrations. The pH ranged from 6.1-6.8 over the test period. - Conclusions:
- Interpretation of results (migrated information): slightly soluble (0.1-100 mg/L)
The water solubility of 68476-55-1 is 52±12 mg/L. - Executive summary:
This study was conducted to a standard guideline and according to GLP. However, the concentrations of dissolved test substance measured after 48 and 72 hours differs by more than 15% so the test is not considered fully valid. The water solubility of 68476-55-1 is 52±12 mg/L.
Referenceopen allclose all
The authors note that as the test substance is not a pure compound but a mixture of compounds the water solubilities of individual fractions may vary.
Description of key information
The water solubility for streams in this category ranges from to 52 - 71 mg/L.
Key value for chemical safety assessment
- Water solubility:
- 60.6 mg/L
- at the temperature of:
- 20 °C
Additional information
Data from GKA Competence Centre Analytics (2008, 2008 & 2009) are available for three of the streams in this category (64742-49-0: 59 mg/L and 71 mg/L at 20°C, 92128-65-9: < 200 mg/L at 20°C, 68476-55-1: 52 mg/L at 20°C). These data will be read across to all category members.
The <200 mg/L result is hindered by the high LOQ and was therefore disregarded when calculating the mean of the data. The mean of the water solubility values for the category is 60.6 mg/L at 20°Cand this has been used to complete the 'key value for chemical safety assessment'.
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