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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 204-402-9 | CAS number: 120-51-4
- 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
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Toxicity to soil macroorganisms except arthropods
Administrative data
Link to relevant study record(s)
- Endpoint:
- toxicity to soil macroorganisms except arthropods: short-term
- Data waiving:
- exposure considerations
- Justification for data waiving:
- the study does not need to be conducted because direct and indirect exposure of the soil compartment is unlikely
- Justification for type of information:
- No experimental study on toxicity to terrestrial arthropods is available. According to Guidance Document R.7c (v3.0; 2017) it is stated, that for readily biodegradable substances which are not directly applied to soil it is generally assumed that the substance will not enter the terrestrial environment and as such there is no need for testing of soil organisms is required. Additionally, the substance cannot be regarded as adsorptive with a log Kow of 4 (logKow < 5) and logKoc of 3.8 (log Koc < 5). It will not be present in ionized form at environmentally relevant pH (4-9) as does not contain any ionic structure.
According to column 2 of REACH Annex IX the study does not need to be conducted if direct and indirect exposure of the soil compartment is unlikely. The results of the chemical safety assessment indicates no need to investigate further the effects of the substance. In the absence of any ecotoxicological data for terrestrial organisms, a provisional PNEC soil is derived by calculations based on the equilibrium partitioning method in accordance to the Guidance Document R.10. A Koc of 6310, a Henrys Law constant of 0.284 Pa m³/mole, and the PNEC aqua (fresh water) of 3.23 µg/l were used for calculation.
A PNECsoil of 0.4069 mg/kg ww is obtained.
Based on the PNECsoil derived via EPM, the following risk characterization rates have been found:
Scenario 1: RCR 0.570
Scenario 2: RCR 0.565
Scenario 3: RCR 0.032
Scenario 4: RCR 1.58E-03
Scenario 5: RCR 4.63E-03
Scenario 6: RCR 1.66E-03
Scenario 7: RCR 0.094
Scenario 8: RCR 0.094
Scenario 9: RCR 0.018
Scenario 10: RCR 0.033
Scenario 11: RCR 0.033
Scenario 12: RCR 0.033
Scenario 13: RCR 0.033
No risk has been identified for the soil compartment and the RCRs are sufficiently lower than 1. Therefore, the performance of sediment toxicity tests is considered unnecessary.
Reference
Description of key information
Key value for chemical safety assessment
Additional information
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.
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