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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 245-322-4 | CAS number: 22914-58-5
- 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
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Hazard for air
Hazard for terrestrial organisms
Hazard for predators
Additional information
Conclusion on classification
Acute data is available from three trophic levels (fish, aquatic invertebrates and algae) and chronic data is available for algae. The most sensitive trophic level is algae the results of which are used to consider classification of the substance.
As zinc and zinc compounds are generally known to be environmentally toxic, the effect concentrations are based on the measured zinc concentrations. The element molybdenum is not thought to be as ecotoxic and based on the available transformation/dissolution data zinc provides lower solubility values. This would make zinc the most suitable and most conservative for risk assessment purposes.
Classification in accordance with the CLP regulation (EC No. 1272/2008, as amended) has been considered with regards to ECHA's Guidance on the Application of the CLP Criteria (Version 5, July 2017). This has a specific section in relation to classification procedures for metals and inorganic metal compounds (Annex IV).
The standard aquatic classification procedures are less relevant for such substances as the concept of rapid degradability and bioaccumulation are less appropriate. This is envisaged in the CLP Regulation which states "For inorganic compounds and metals, the concept of degradability as applied to organic compounds has limited or no meaning. Rather, such substances may be transformed by normal environmental processes to either increase or decrease the bioavailability of the toxic species. Equally the use of bioaccumulation data shall be treated with care. Specific guidance has been issued by the European Chemicals Agency on how these data for substance substances may be used in meeting the requirements of the classification criteria".
Following the procedure in ECHA guidance:
Aquatic acute classification:
Acute ERV of the compound = Acute ERV of the metal ion; zinc x (MW of the compound/atomic weight of the metal; zinc) = 0.73 mg/L. The metal compound is considered readily soluble as the zinc solubility from the transformation/dissolution study (9.48 - 11.2 mg/L) is greater than the acute ERV value for the dissolved metal ion. As the Acute ERV of the compound is < 1 mg/L, classification as Aquatic Acute.1 is appropriate. An M-factor of 1 is deemed appropriate.
Aquatic chronic classification:
Chronic ERV of the compound = Chronic ERV of the metal ion; zinc x (MW of the compound/atomic weight of the metal; zinc) = 0.175 mg/L. As there is insufficient evidence to show rapid environmental transformation, the substance is classified as Aquatic Chronic 2. The chronic ERV of the compound is > 0.1 mg/L and < 1 mg/L.
In summary, classification as Aquatic Acute Category 1 (M-Factor 1) and Aquatic Chronic Category 2 are appropriate for this substance.
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.