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Diss Factsheets
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EC number: 940-936-5 | CAS number: -
- 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
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
The activated sludge respiration study was conducted according to the OECD 209 and in compliance with GLP.
Key value for chemical safety assessment
- EC50 for microorganisms:
- 251.5 mg/L
Additional information
The key value for CSA was selected from the GLP compliant activated sludge respiration inhibition study conducted for the target substance. The study was done according to the OECD 209. Samples of test medium were not collected during the exposure period for the analytical verification of the test solutions. Halo Salt could not be quantified in the test system due to the nature of the material being unstable under the test conditions and the fact that no suitable analytical technique with the required sensitivity could be determined. Therefore the results of this study were based on nominal test concentrations.
The pH of the test media was between 8.68-8.75 with the highest test substance concentration of 1000 mg/L. Therefore the pH in samples with concentration of 1000 mg/L was adjusted to 8.07-8.13 with 1 mL 5% Acetic acid before test initiation. Nominal concentrations used in both pre-test evaluation and in final test were 10 mg/L, 100 mg/L and 1000 mg/L. The EC50 value for test substance was determined as 251.5 mg/L, with 95 percent confidence limits of 100 mg/L and 1000 mg/L.
In general, target substance should have minimal effect on the microbes of municipal waste water treatment plant, as because of its high reactivity and rapid degradation is expected to disappear very rapidly in sewer (Modelling results by Vandepitte & Schowanek 2007). Activated sludge flocs are also not very sensitive to hypochlorite probably because they have polysaccharide glycosalix that protects them (EU Risk Assessment Report 2007).
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.