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EC number: 212-773-3 | CAS number: 868-18-8
- 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:
- 17 November - 11 December 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Version / remarks:
- Adoptation 2014
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- flask method
- Specific details on test material used for the study:
- Storage conditions: ambient temperature (10 to 30 °C)
- Key result
- Water solubility:
- 500 g/L
- Conc. based on:
- element (dissolved fraction)
- Temp.:
- 20 °C
- pH:
- >= 6.9 - <= 7.1
Reference
Table 1: Results of the preliminary visual estimation of the water solubility
Amount of test item / mg |
Added volume ofdist. water / mL |
Total volume / mL |
Appearance of mixture |
100.2 |
0.1 |
0.1 |
Not dissolved |
0.4 |
0.5 |
Dissolved |
According to this preliminary visual estimation the water solubility of the test item was > 200 g/L but
<1002 g/L. Therefore the preferred method for the main test was the flask method. Due to this high presumed water solubility an additional stirring test was performed prior to the performance of the main test to determine the highest amount of test item that can still be stirred sufficiently in a mixture with water (see Table 2).
Table 2: Stirring test
|
According to the stirring test, mixtures of approx. 1480 g/L test item in dist.water were used in the main test.
Flask method
The data for the evaluation are given in Table 3. After the equilibration time a small amount of precipitate was observed in the flasks of the experiments excluding in the blank experiment. The water solubility was calculated from the measured and unrounded concentration values and not from the rounded values given in Table 3.
Table 3: Water solubility experiments of the test item
Experiment |
24 h experiment |
48 h experiment |
72 h experiment |
Blank experiment (72 h) |
Amount of test itemIg |
15.51) |
14.7 |
14.8 |
-- |
Amount of distilled water/ mL |
10 |
10 |
10 |
10 |
Stirring time at 30 °C / h |
24 |
48 |
72 |
72 |
pH at 23 °C |
6.9 |
7.1 |
7.0 |
6.7 |
Measured concentration sodium/ g/L |
100 |
100 |
100 |
0.009 |
Water solubility / g/L |
500 |
500 |
500 |
<0.01 |
1) Dried test item, no influence on the results
The water solubility of the test item at 20 °C was determined to be Cs = 500 g/L.
Description of key information
500 g/L at 20 °C and pH 7.1 (OECD 105, flask method)
Key value for chemical safety assessment
- Water solubility:
- 500 g/L
- at the temperature of:
- 20 °C
Additional information
The water solubility of test substance is calculated based on the measured concentration of sodium.
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