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EC number: 943-492-0 | 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
- Endpoint:
- transformation / dissolution of metals and inorganic metal compounds
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- October 2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 019
Materials and methods
Test guideline
- 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:
- no
- Other quality assurance:
- ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)
- Type of method:
- flask method
Test material
- Reference substance name:
- Phosphoric acid, iron(2+) lithium manganese(2+) salt (10:3:10:7)
- EC Number:
- 943-492-0
- Cas Number:
- 1354700-46-1
- Molecular formula:
- Li(Fe0.3Mn0.7)PO4
- IUPAC Name:
- Phosphoric acid, iron(2+) lithium manganese(2+) salt (10:3:10:7)
- Test material form:
- solid: particulate/powder
Constituent 1
Results and discussion
Solubility of metal ions in aqueous mediaopen allclose all
- Key result
- Type of test:
- screening transformation/dissolution test - sparingly soluble metal compounds
- Mean dissolved conc.:
- 86 µg/L
- Element analysed:
- Iron
- Loading of aqueous phase:
- 100 mg/L
- Incubation duration:
- 24 h
- Test conditions:
- pH 6
- Key result
- Type of test:
- screening transformation/dissolution test - sparingly soluble metal compounds
- Mean dissolved conc.:
- 880 µg/L
- Element analysed:
- Mn
- Loading of aqueous phase:
- 100 mg/L
- Incubation duration:
- 24 h
- Test conditions:
- pH 6
- Key result
- Type of test:
- screening transformation/dissolution test - sparingly soluble metal compounds
- Mean dissolved conc.:
- 893 µg/L
- Element analysed:
- Li
- Loading of aqueous phase:
- 100 mg/L
- Incubation duration:
- 24 h
- Test conditions:
- pH 6
- Details on results:
- The following observations could be made in the test vessels at the nominal pH 6 with a loading of 100 mg/L LMFP EXM6001 (Annex 2b):
An average dissolved concentration of 83 ± 17 μg/L Fe was found at the 24 hours endpoint with a between-vessel coefficient of variation of 20 % (N = 3) which met the <20 % quality criterion at the 24 hours endpoint. The within-vessel coefficients of variation met the <10 % quality criterion for all test vessels.
Based on the specific surface area of the LMFP EXM6001 powder (i.e. 30 m²/g test item, Annex 7), an iron release per surface of 0.028 mg/m² was calculated at the 24 hours endpoint.
Based on the iron content of the test item (10.2 %Fe, Annex 7) and the average dissolved iron concentration, an iron release of approximately 0.81 % could be calculated at the 24 hours endpoint.
An average dissolved concentration of 893 ± 40 μg/L Li was found at the 24 hours endpoint with a between-vessel coefficient of variation of 4 % (N = 3) which met the <20 % quality criterion at the 24 hours endpoint. The within-vessel coefficients of variation met the <10 % quality criterion for all test vessels.
Based on the specific surface area of the LMFP EXM6001 powder (i.e. 30 m²/g test item, Annex 7), a lithium release per surface of 0.30 mg/m² was calculated at the 24 hours endpoint.
Based on the lithium content of the test item (4.5 % Li, Annex 7) and the average dissolved lithium concentration, a lithium release of approximately 20 % could be calculated at the 24 hours endpoint.
Applicant's summary and conclusion
- Conclusions:
- During this study on LMFP EXM6001 at a loading of 100 mg/L, it was shown that:
• For iron, an average concentration of 83 μg/L Fe (CVoverall = 17 %; N = 9) was measured at pH 6 (i.e. 0.81 % iron release) and <3 μg/L Fe (N = 9) at pH 8 (i.e., <0.029 % iron release),
• For lithium, an average concentration of 893 μg/L Li (CVoverall = 4 %; N = 9) was measured at pH 6 (i.e. 20 % lithium release) and 574 μg/L Li (CVoverall = 3 %; N = 9) at pH 8 (i.e., 13 % lithium release),
• For manganese, an average concentration of 880 μg/L Mn (CVoverall = 8 %; N = 9) was measured at pH 6 (i.e. 3.7 % manganese release) and 234 μg/L Mn (CVoverall = 6 %; N = 9) at pH 8 (i.e., 1.0 % manganese release),
after 24 hours of exposure to the test medium at pH 6 and pH 8, respectively.
Based on the rounded results, of the dissolved element concentrations, we may conclude that pH 6 is the pH where the highest concentrations of iron, lithium and manganese were measured.
The results can be assumed reliable since the test conditions stayed constant during the experiment.
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