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Diss Factsheets
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EC number: 701-229-5 | CAS number: -
- 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:
- transformation / dissolution of metals and inorganic metal compounds
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Series on Testing and Assessment No. 29 (23-Jul-2001): Guidance document on transformation/dissolution of metals and metal compounds in aqueous media
- GLP compliance:
- yes
- Other quality assurance:
- ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
- Type of method:
- flask method
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- < 0.1 µg/L
- Element analysed:
- cadmium
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 28 d
- Test conditions:
- pH 6
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- < 0.1 µg/L
- Element analysed:
- cadmium
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 7 d
- Test conditions:
- pH 6
- Details on results:
- The temperature of the test solutions fluctuated between 21.2 and 22.7°C during the tests, the pH remained constant at ± 0.2 units, and the dissolved oxygen concentration was always maintained above 70% (± 5.95 mg/L) of its saturation in air (± 8.50 mg/L). The non-purgeable dissolved organic carbon content (NPDOC) of the (modified) ISO 6341 aqueous media was below the reporting limit (<0.5 mg/L).
The acute (7d) Transformation/Dissolution Test on CdSSe in a standard aqueous medium at pH 6 and with a 1 mg/L loading showed an average dissolved cadmium concentration of <0.1 μg/L Cd . CdSSe contains 66.3% (w/w) cadmium. This means that <0.015% of the total introduced cadmium went into the test system as dissolved cadmium after 7 days.
The Chronic (28d) Transformation/Dissolution Test on CdSSe in a standard aqueous medium at pH 6 and with a 1 mg/L loading showed an average dissolved cadmium concentration of 0.14 ± 0.03 μg/L Cd. This means that about 0.02% of the total introduced cadmium went into the test system as dissolved cadmium after 28 days. - Conclusions:
- Interpretation of results: insoluble (< 0.1 mg/L)
Tests were done according to standard OECD protocol and considered of good quality. - Executive summary:
In this study, a loading of 1 mg/L of CdSSe was agitated at 100 rpm in a pH buffered aqueous medium at pH 6 for 28 days. The solutions were sampled at specific time intervals and the concentrations of dissolved cadmium in water were determined.
The acute (7d) Transformation/Dissolution Test on CdSSe in a standard aqueous medium at pH 6 and with a 1 mg/L loading showed an average dissolved cadmium concentration of <0.1μg/L Cd
The Chronic (28d) Transformation/Dissolution Test on CdSSe in a standard aqueous medium at pH 6 and with a 1 mg/L loading showed an average dissolved cadmium concentration of 0.14 +/- 0.03 μg/L Cd.
- Endpoint:
- transformation / dissolution of metals and inorganic metal compounds
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Series on Testing and Assessment No. 29 (23-Jul-2001): Guidance document on transformation/dissolution of metals and metal compounds in aqueous media
- GLP compliance:
- yes
- Other quality assurance:
- ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
- Type of method:
- flask method
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- < 0.2 µg/L
- Element analysed:
- cadmium
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 28 d
- Test conditions:
- pH 6
- Type of test:
- full transformation/dissolution test - metals and sparingly soluble metal compounds
- Mean dissolved conc.:
- < 0.2 µg/L
- Element analysed:
- cadmium
- Loading of aqueous phase:
- 1 mg/L
- Incubation duration:
- 7 d
- Test conditions:
- pH 6
- Details on results:
- The temperature of the test solutions fluctuated between 21.2 and 22.7°C during the tests, the pH remained constant at ± 0.2 units, and the dissolved oxygen concentration was always maintained above 70% (± 5.95 mg/L) of its saturation in air (± 8.50 mg/L). The non-purgeable dissolved organic carbon content (NPDOC) of the (modified) ISO 6341 aqueous media was below the reporting limit (<0.5 mg/L).
The acute (7d) Transformation/Dissolution Test on CdSSe in a standard aqueous medium at pH 6 and with a 1 mg/L loading showed an average dissolved cadmium concentration of 0.24 +/-0.09 μg/L Cd. CdSSe contains 66.3% (w/w) cadmium. This means that 0.036% of the total introduced cadmium went into the test system as dissolved cadmium after 7 days.
The Chronic (28d) Transformation/Dissolution Test on CdSSe in a standard aqueous medium at pH 6 and with a 1 mg/L loading showed an average dissolved cadmium concentration of 0.23 ± 0.13 μg/L Cd. This means that about 0.035% of the total introduced cadmium went into the test system as dissolved cadmium after 28 days. - Conclusions:
- Interpretation of results (migrated information): insoluble (< 0.1 mg/L)
Tests were done according to standard OECD protocol and considered of good quality. - Executive summary:
In this study, a loading of 1 mg/L of CdSSe was agitated at 100 rpm in a pH buffered aqueous medium at pH 6 for 28 days. The solutions were sampled at specific time intervals and the concentrations of dissolved cadmium in water were determined.
The acute (7d) Transformation/Dissolution Test on CdSSe in a standard aqueous medium at pH 6 and with a 1 mg/L loading showed an average dissolved cadmium concentration of 0.24 +/- 0.09 μg/L Cd.
The Chronic (28d) Transformation/Dissolution Test on CdSSe in a standard aqueous medium at pH 6 and with a 1 mg/L loading showed an average dissolved cadmium concentration of 0.23 +/- 0.13 μg/L Cd.
Referenceopen allclose all
Description of key information
Transformation/dissolution tests were performed on the substance to
check the solubility under environmentally relevant conditions. The
results demonstrate the highly insoluble character of the substance:
only 0.026% and 0.028 % of the Cd contained in the substance was
solubilised after 7days and 28 days of testing, respectively.
The experimentally determined average water solubility of Cd in the
substance is 12 mg/l at a pH range of 5.6 -6.04 (Outotec, 2010).
However, as >75% of the particles have a size < 20 µm, one cannot avoid
the occurence of particles in the solution tested and the value was not
taken forward in this assessment.
Key value for chemical safety assessment
- Water solubility:
- 0.19 µg/L
- at the temperature of:
- 22 °C
Additional information
Average solubility of Cd, measured on 2 substance samples tested at 1mg/l loading according to OECD protocol "OECD Series on Testing and Assessment No. 29", was 0.17 and 0.185 µg Cd/l after 7days and 28 days of testing, respectively. This value is relevant for the solubility of the substance in the aquatic environment, and demonstrates the highly insoluble character of the substance, resulting in its lack of aquatic hazard.
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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