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Diss Factsheets
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EC number: 679-514-8 | CAS number: 154279-60-4
- 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
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
Toxicity to micro-organisms as per Activated Sludge Respiration Inhibition test OECD 209 (2010):
3 hr EC50: 160 mg/l
3 hr EC10: 42 mg/l
Key value for chemical safety assessment
- EC50 for microorganisms:
- 160 mg/L
- EC10 or NOEC for microorganisms:
- 42 mg/L
Additional information
Under the conditions of the above study, a statistically significant inhibitory effect of the test substance on aerobic waste water (activated sludge) bacteria was observed at all loading rates tested, ranging from 11% inhibition at the lowest loading rate (46 mg/l) to 99% inhibition at the highest loading rate (1000 mg/l). EC50 was determined to be 160 mg/l with 95 % confidence interval of 97-250 mg/l and EC10 was determined to be 42 mg/l with confidence interval of 25-70 mg/l.
One more study was conducted in accordance with Good Laboratory Practice (US-EPA FIFRA 40 CFR 160 and 40 CFR 792). This study was performed according to OECD guideline 209. However, the results were regarded as unreliable because the depletion of oxygen was measured at times from 0 to 60 minutes after removing the activated sludge from aeration. The dissolved oxygen depletion rate was calculated using the 60 minute concentration, at which the DO level was 0.4 mg/L. The guideline recommends that dissolved oxygen concentration should not be < 2 mg/L at the end of the measurement period. Therefore, it might be that actively respiring bacteria, at a concentration required by the OECD 209 method, could not show the results displayed in this report. Based on these facts, the study was chosen to be a supporting study.
On the basis of key study, it can be concluded that the test substance is toxic to micro-organisms.
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.