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Diss Factsheets
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EC number: 695-938-6 | CAS number: 678966-16-0
- 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://chesar.echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_ecotoxicological-information.png)
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 34 µg/L
- Assessment factor:
- 50
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.183 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 3.4 µg/L
- Assessment factor:
- 500
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 18.3 µg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 10 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 0.193 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 19.3 µg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 18.7 µg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Conclusion on classification
Available data: the acute and chronic data are as follows.
Fish acute data: 96h-LC50: > 102 mg/L (norminal)
Daphnia:
Acute data: 48h-EC50: 18.3 mg/L (norminal);
Chronic data: 21 d NOEC: 1.7 mg/L (norminal)
Algae growth inhibition data: 72h-ErC50 value (growth rate): 316 mg/L (norminal); 72h No-Observed Effect Concentration (NOEC): < 25 mg/L (norminal)
And the substance is considered to be readily degradable and log Pow at pH 4, 7 and 10 were less than 1.
Due to the test substance can react with rater rapidly generating lots of hydrolysis products, the toxicity is considered as caused by whole muti-components in solution, hence the classification is based on nominal concentration of test substance.
Acute classification:
In according to Regulation (EC) 1272/2008, amendment 286/2011, table 4.1.0 (a), acute classification is either Category Acute 1 or not classified, Category Acute 1 applies if EC50 for fish or Daphnia magna or algae ≤ 1 mg/L.
For this substance all EC50 values are > 1mg/L, therefore the substance is not classified for acute aquatic toxicity.
Chronic classification:
In according to Regulation (EC) 1272/2008, amendment 286/2011, table 4.1.0 (b.ⅱ), rapidly degradable substances for which there are adequate chronic toxicity data available, chronic classification is either Category Chronic 1, Category Chronic 2, Category Chronic 3 or not classified.
As the substance is considered to be readily degradable, chronic 21 d EC50/NOEC values for Daphnia were all > 1 mg/L, Category Chronic 1, 2 and 3 do not apply (Category Chronic 3 is required for rapidly degradable substances if chronic NOEC or ECx for fish or Daphnia magna or algae > 0.1 to ≤ 1 mg/L).
In addition, “Safety net” classification (Category Chronic 4) are cases when data do not allow classification under the above criteria but there are nevertheless some grounds for concern. This includes, for example, poorly soluble substances for which no acute toxicity is recorded at levels up to the water solubility, and which are not rapidly degradable and have an experimentally determined BCF ≥ 500 (or, if absent, a log Kow ≥ 4). This substance does not meet this criteria.
Therefore the substance is not classified for chronic aquatic toxicity.
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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