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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 243-814-3 | CAS number: 20427-58-1
- 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://poisoncentres.echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_ecotoxicological-information.png)
Toxicity to other aquatic organisms
Administrative data
Link to relevant study record(s)
Description of key information
Freshwater: Extensive field data showed that standards for dissolved zinc in freshwater should be in the range 20-27 µg Zn/l (Crane et al. 2007).
Saltwater: Field studies on phytoplancton assemblages dominated by diatoms and dinoflagellates have shown that the lowest observed effect levels are in the range 10-15 µg/L according to an experiment conducted in the English Channel (Davies and Sleep, 1979) and up to >100 µg/L according to another experiment conducted in Kiel Fjord and in the Baltic Sea (Wolter et al. 1984).
Additional information
PNECs for dissolved metals are primarily based on single species data determined in the laboratory. It is important to check their capacity for protecting the environment through field data, making the relationship between measured metal levels and observed ecosystem effects in the field.
freshwater:
Freshwater benthic macroinvertebrates are a group of organisms of known sensitivity to metals.An extensive dataset on zinc concentrations in UK waters was compared with associated benthic invertebrate community metrics. This large scale study revealed that the freshwater standard for zinc (dissolved) should be in the range 20 -27 µg/l ; it was concluded that the ecotoxicity data (NOECs) were showing the same lower range of sensitivity, and that application of additional safety factors on the ecotoxicity information was overly-conservative, and not reflecting ecological reality.
Marine water:
The available field data relate to algal communities, which are known to be among the most sensitive organisms to zinc in the aquatic environment. The lowest observed effects levels on phytoplancton assemblages are in the range 10 -15 µg/L and EC10 levels from the dose-response curves in the range 7 -13 µg/L according to an experiment conducted in the English Channel (see Davies and Sleep, 1979) and up to >100 µg/L according to another experiment conducted in Kiel Fjord and in the Baltic Sea (see Wolter et al. 1984).
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)