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Diss Factsheets
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EC number: 224-756-8 | CAS number: 4477-28-5
- 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
4-anilinobenzenediazonium hydrogen sulphate was tested for acute aquatic toxicity at two trophic levels (aquatic invertebrates and algae) according to annex VII of the REACH Regulation (EC n.1907/2006).
- EC50 48h Daphnia Magna = 0.36 mg/l (measured initial concentration; 95 % confidence limit: 0.30 – 0.44 mg/l):experimental data obtained testing the substance according to OECD TG 202.
- ErC50 72h Desmodesmus subspicatus = 7.90 mg/l (measured initial concentrations; 95 % confidence limit: 4.19 – 15.16 mg/l): experimental data obtained testing the substance according to OECD TG 201.
Conclusion on classification
According to the CLP Regulation (EC n.1272/2008), the threshold for classification of a substance for acute aquatic toxicity is 1 mg/l. This limit refers to LC50 (96h) for fish, EC50 (48 h) for daphnia and EC50 (72 - 96 h) for algae or aquatic plants.
A study to assess the short-term toxicity to Daphnia Magna of 4-anilinobenzenediazonium hydrogen sulphate was performed and the result of the test was EC50 48h Daphnia Magna = 0.36 mg/l (measured initial concentration; 95% confidence limit: 0.30 – 0.44 mg/l)
Toxicity on algae was assessed in 72 -hour test always on 4-anilinobenzenediazonium hydrogen sulphate and EC50 for algal growth rate was 7.90 mg/l (measured initial concentrations; 95% confidence limit: 4.19 – 15.16 mg/l).
Considering the result of short-term toxicity test to Daphnia Magna (EC50 48h = 0.36 mg/l), 4-anilinobenzenediazonium hydrogen sulphate is classified H400 (acute aquatic toxicity cat.1) according to the CLP Regulation (EC n.1272/2008).
No chronic toxicity data is available from long-term studies. No further investigation is required considering that the substance is present as such in aqueous solution with naturally light exposure less than 30 minutes. Moreover, 4-anilinobenzenediazonium hydrogen sulphate is a monomer, used under strictly controlled conditions to produce the polymer.
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.
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