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EC number: 221-518-5 | CAS number: 3130-19-6
- 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:
- 06 September 2017 to 11 December 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 105 (Water Solubility)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.6 (Water Solubility)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- column elution method
- Key result
- Water solubility:
- < 2 mg/L
- Conc. based on:
- test mat.
- Temp.:
- 20 °C
- pH:
- >= 6.52 - <= 7.88
- Details on results:
- PRELIMINARY TEST
- The solubility of the test material in water at room temperature was estimated to be < 9.54 mg/L. Therefore, the column elution method was performed.
- The observations of the preliminary test are summarised in Table 1.
MAIN TEST
- The mean value and its standard deviation from five consecutive samples taken from the saturation plateau, each measured twice, were calculated for each run. The mean concentrations calculated on two tests using different flows were compared and the repeatability was calculated, which should be better than 30 %.
- The first, second and third column showed no signal of the test material. Only the negative injection signal of water could be observed.
- In the fractions of two columns with different flow rates no test material could be detected.
- To verify the accuracy of the analytical method freshly prepared standard solutions (prepared with the test material) were measured in between the samples of the column elution method. The recovery rates should lie between 90 and 110 %. The recovery rate of the measured standard solutions was in the range from 95.8 to 103.4 %, which shows a good accuracy of the analytical method.
- Following the measurements, the amount of the test material in the columns was checked. For this purpose, columns 1 and 2 were each purged with 50 mL acetone. 1 mL of the acetone solutions were diluted to 50 mL with the eluent and measured by HPLC.
- These measurements show, that 29.15 mg of the test material could be found in column 1 after the main test, which corresponds to 83.7 % of the starting amount. 29.32 mg of the test material could be found in column 2 after the main test, which corresponds to 84.2 % of the starting amount. In both columns enough test material could be found after the main tests to ensure correct performance of the test. - Conclusions:
- Under the conditions of this study the water solubility of the test material was < 2.0 mg/L at 20 °C.
- Executive summary:
The water solubility of the test material was investigated in accordance with the standardised guidelines OECD 105 and EU Method A.6, under GLP conditions.
The solubility of the test item in water at room temperature was estimated to be < 9.54 mg/L. Therefore, the column elution method was performed. The solutions were analysed using HPLC.
In the fractions of two columns with different flow rates no test material could be detected. To verify the accuracy of the analytical method freshly prepared standard solutions (prepared with the test material) were measured in between the samples of the column elution method. The recovery rates of the measured standard solutions was in the range from 95.8 to 103.4 %, which shows a good accuracy of the analytical method. Following the measurements, the amount of the test material in the columns was checked. For this purpose, columns 1 and 2 were each purged with 50 mL acetone. 1 mL of the acetone solutions were diluted to 50 mL with the eluent and measured by HPLC. These measurements show, that 29.15 mg of the test material could be found in column 1 after the main test, which corresponds to 83.7 % of the starting amount. 29.32 mg of the test material could be found in column 2 after the main test, which corresponds to 84.2 % of the starting amount. In both columns enough test material could be found after the main tests to ensure correct performance of the test.
Under the conditions of this study the water solubility of the test material was < 2.0 mg/L at 20 °C.
Reference
Table 1: Preliminary Test for the Water Solubility
Amount of test material [mg] |
Total volume of added water [mL] |
Stirring time at RT |
Remark |
106.6 |
0.1 |
-- |
not dissolved |
0.6 |
-- |
not dissolved |
|
1.6 |
2 min1) |
not dissolved |
|
3.6 |
2 min1) |
not dissolved |
|
13.6 |
2 min1) |
not dissolved |
|
100 |
5 min1) |
not dissolved |
|
9.83 |
100 |
approx. 4 days |
not dissolved |
4.77 |
250 |
approx. 4 days |
not dissolved |
4.92 |
500 |
approx. 4 days |
not dissolved |
1)The mixtures were treated in an ultrasonic bath.
Description of key information
The water solubility of the test material was investigated in accordance with the standardised guidelines OECD 105 and EU Method A.6, under GLP conditions. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).
The solubility of the test item in water at room temperature was estimated to be < 9.54 mg/L. Therefore, the column elution method was performed. The solutions were analysed using HPLC.
In the fractions of two columns with different flow rates no test material could be detected. To verify the accuracy of the analytical method freshly prepared standard solutions (prepared with the test material) were measured in between the samples of the column elution method. The recovery rates of the measured standard solutions was in the range from 95.8 to 103.4 %, which shows a good accuracy of the analytical method. Following the measurements, the amount of the test material in the columns was checked. For this purpose, columns 1 and 2 were each purged with 50 mL acetone. 1 mL of the acetone solutions were diluted to 50 mL with the eluent and measured by HPLC. These measurements show, that 29.15 mg of the test material could be found in column 1 after the main test, which corresponds to 83.7 % of the starting amount. 29.32 mg of the test material could be found in column 2 after the main test, which corresponds to 84.2 % of the starting amount. In both columns enough test material could be found after the main tests to ensure correct performance of the test.
Under the conditions of this study, the water solubility of the test material was < 2.0 mg/L at 20 °C.
Key value for chemical safety assessment
- Water solubility:
- 2 mg/L
- at the temperature of:
- 20 °C
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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