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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
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EC number: - | 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
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 022
- Report date:
- 2022
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 122 (Determination of pH, Acidity and Alkalinity)
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- Alkaline co-precipitation products of soluble cobalt, manganese and nickel salts
- Molecular formula:
- Co(OH)2(0.005-0.1)Co2O3(0.03-0.3)Mn3O4(0.01-0.1)MnO2(0.02-0.25)Ni(OH)2(0.35-0.91) The stoichiometry of (OH)x+Oy per metal component in the substance cannot be determined unambiguously from solely analytical data, since the composition of the present UVCB substance is highly variable (i.e. complexly mixed and poorly ordered at the atomic level). The composition of the UVCB substance can be estimated based on analytical examination in combination with a calculation that is based on the average oxidation number (NOx) in the sum of the elements Ni, Co, Mn. As a result, the following constituents in concentration ranges as described below can be identified in the UVCB: The sum of all constituents equals 1 and ranges are: • Co(OH)2: 0.005-0.1 • Co2O3: 0.03-0.3 • Mn3O4: 0.01-0.1 • MnO2: 0.02-0.25 • Ni(OH)2: 0.35-0.91
- IUPAC Name:
- Alkaline co-precipitation products of soluble cobalt, manganese and nickel salts
- Test material form:
- solid
Constituent 1
- Specific details on test material used for the study:
- Name or code no.: NCM PCAM 91-4.5-4.5
Batch no.: pCAM02194
Chemical identity: Cobalt manganese nickel oxide hydroxide
Purity (UVCB): 100 %
Storage conditions: Room temperature
Production date: 2021-04-27
Expiry date: 2023-04-26
- State of aggregation:
The present sample is a nanostructured material composed of constituent particles in the nanoscale that are fused together in aggregates. The aggregates have a spherical shape with external dimensions in the µm scale.
- Particle size distribution:
D10 [nm] feret min: 18.9
D50 [nm] feret min: 26.2
D90 [nm] feret min: 36.4
D10 [nm] 2nd dimension: 74.1
D50 [nm] 2nd dimension: 126.1
D90 [nm] 2nd dimension: 200.1
- Shape of particles:
The particles have a median aspect ratio of 4.8:1.
The material is assigned to the “platelet” shape category. The shape is “plate”.
- Surface area of particles:
The mass specific surface area is 31 m²/g and the volume specific surface area is 111 m²/cm³
- Crystal structure:
trigonal
- Coating:
none
- Density:
3.6 g/cm3
- Moisture content:
water ca. 1.0 - >/= 0 = 5
Reagents
- Reagent:
- buffer solutions
Results and discussion
pH value
- Key result
- pH value:
- 8.7
- Temp.:
- 20 °C
- Concentration:
- 1 other: g / 100 ml
Any other information on results incl. tables
Results
Single values: | pH = 8.5935; 8.8018 |
Mean value of 2 determinations: | pH = 8.7 |
Estimated accuracy: | ± 0.1 pH |
Applicant's summary and conclusion
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.