Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 234-829-6 | CAS number: 12035-72-2
- 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
![](https://echa.europa.eu./o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_physical-and-chemical-properties.png)
Water solubility
Administrative data
Link to relevant study record(s)
Description of key information
On applying the saturation periods of 24, 48 and 72 hours, the mean dissolved nickel concentration increased from 2.27 x 10-3to 6.62 x 10‑3 g/l of solution at 20.0 ± 0.5°C (equivalent to 3.09 x 10-3to 9.03 x 10-3g/l of dissolved nickel subsulfide). Therefore, extended saturation periods of 96, 120 and 144 hours were applied to a further three samples. Again no saturation plateau was evident on analysis, with the mean dissolved nickel concentration increasing from 7.35 x 10-3 to 1.16 x 10-2 g/l of solution 20.0 ± 0.5°C across these three samples (equivalent to 1.00 x 10-2 to 1.58 x 10-2 g/l of dissolved nickel subsulfide). Further discussion is provided below.
Key value for chemical safety assessment
Additional information
Monitoring the total dissolved nickel concentration of the sample solutions, the test material failed to achieve a saturation plateau using the saturation and equilibration periods stated in EC Method A6 and OECD Method 105. On applying the saturation periods of 24, 48 and 72 hours the mean dissolved nickel concentration increased from 2.27 x 10-3 to 6.62 x 10-3 g/l of solution at 20.0 ± 0.5°C (equivalent to 3.09 x 10-3 to 9.03 x 10-3 g/l of dissolved nickel subsulfide). Therefore, extended saturation periods of 96, 120 and 144 hours were applied to a further three samples. Again no saturation plateau was evident on analysis, with the mean dissolved nickel concentration increasing from 7.35 x 10-3 to 1.16 x 10-2 g/l of solution 20.0 ± 0.5°C across these three samples (equivalent to 1.00 x 10-2 to 1.58 x 10-2 g/l of dissolved nickel subsulfide).
In the absence of a saturation plateau even after adaptation of the method guidelines and applying an extended saturation period of 144 hours, it was not considered that a definitive water solubility result could be obtained for the test material. However it is equally important to note that as both ICP and AAS are non-substance specific elemental methods only, the generation of the dissolved nickel content in the sample solutions may also be as a product of transformation as opposed to true dissolution of the parent subsulfide salt.
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.
![ECHA](/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/echa_logo.png)