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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 915-926-9 | 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
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.2 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.046 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.02 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
- PNEC marine water (intermittent releases):
- 0.46 mg/L
STP
- Hazard assessment conclusion:
- PNEC STP
- PNEC value:
- 1 000 mg/L
- Assessment factor:
- 1
- Extrapolation method:
- assessment factor
Sediment (freshwater)
- Hazard assessment conclusion:
- PNEC sediment (freshwater)
- PNEC value:
- 8.23 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.823 mg/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:
- 4.74 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
The PNEC derivation was justified as follows:
All ecotoxicological studies relevant for the Environmental Risk Assessment were performed with a commercial formulation containing 46.2% (w/w) of the REACH registration substance. The water content of the actual test item was 57.6% (w/w). For the substance subject to REACH registration a water content of 3.8% (w/w) was analytically determined (please refer IUCLID section 1.2). Thus, for the sake of completeness, effect concentrations obtained for the actual test item were recalculated to determine effect concentrations that correspond to the REACH registration substance taking into account its specific water content (please refer to section "Conclusion on classification" below).
However, PNEC values were derived on the effect concentrations determined for the commercial formulation which were not correced for the higher water content in comparison to the REACH registration substance. This has been done since in the risk assessment the manufactured and used tonnages of the commercial formulation were used for expoure assessment (instead of the adaptation of the tonnages to the REACH registration substance with a lower water content).
PNEC freshwater sediment
K_(susp-water) = 10.29
RHO_(susp) = 1150
Conversion factor (wwt -> dwt): 4.6
PNEC_freshwater sediment
= (K_(susp-water)/ RHO_(susp)) * PNEC_freshwater * 1000
= (10.29/1150) * 0.2 * 1000
= 0.1789 mg/kg wwt
= 8.23 mg/kg dw
PNEC marine water sediment
K_(susp-water) = 10.29
RHO_(susp) = 1150
Conversion factor (wwt -> dwt): 4.6
PNEC_marinewater sediment
= (K_(susp-water)/ RHO_(susp)) * PNEC_marinewater * 1000
= (10.29/1150) * 0.02 * 1000
= 0.01789 mg/kg wwt
= 0.823 mg/kg dw
PNECsoil
K_(soil-water) = 35.67
RHO_(soil) = 1700
Conversion factor (wwt -> dwt): 1.13
PNEC_soil
= (K_(soil-water)/ RHO_(soil)) * PNEC_freshwater * 1000
= (35.67/1700) * 0.2 * 1000
= 4.196 mg/kg wwt
= 4.74 mg/kg dw
Conclusion on classification
All aquatic tests were performed with the commercial formulation containing 46.2% (w/w) of the REACH registration substance. The water content of the actual test item was 57.6% (w/w). For the substance subject to REACH registration a water content of 3.8% (w/w) was analytically determined (please refer IUCLID section 1.2). Therefore, results for the actual test item were recalculated to obtain effect concentrations that correspond to the REACH registered substance taking into account its specific water content.
Aquatic acute toxicity
48 h, EC50 (Daphnia magna): 4.58 mg/L (based on nominal concentration of the actual test item; corresponds to 2.12 mg/L of the registration substance)
72 h, ErC50 (Pseudokirchneriella subcapitata): 73 mg/L (based on nominal concentration of the actual test item; corresponds to ca. 33 .73 mg/L of the registration substance)
96 h, LC50 (Brachydanio rerio): 4.72 mg/L (based on nominal concentration of the actual test item; corresponds to ca. 2.18 mg/L of the registration substance)
Aquatic chronic toxicity
21 d, EC10 (Daphnia magna): > 2 mg/L (based on nominal concentration of the actual test item; corresponds to > 0.92 mg/L of the registration substance)
72 h, ErC10 (Pseudokirchneriella subcapitata): 11 mg/L (based on nominal concentration of the actual test item; corresponds to ca. 5.08 mg/L of the registration substance)
8 d, EC10 (Brachydanio rerio): 2.101 mg/L (based on nominal concentration of the actual test item; corresponds to ca. 0.97 mg/L of the registration substance)
Biodegradation: readily biodegradable: 73 % biodegradation after 28 days (based on CO2evolution test; according to OECD 310 and ISO 14593:1999) and 63 % after 28 days in a supporting study (based on DOC Die-Away-Test according to OECD 301 A and EU method C.4-A).
Partition coefficient: log Pow = 2.99 at 25 °C
Classification, Labelling, and Packaging Regulation (EC) No 1272/2008
The available experimental test data are reliable and suitable for classification purposes under Regulation (EC) No. 1272/2008. The test substance was found to be readily biodegradable under the test conditions (73 % biodegradation after 28 days; see IUCLID section 5.2.1). Its log Pow was calculated to be 2.99 at 25 °C (see IUCLID section 4.7). Daphnia magna was the most sensitive test species regarding short-term aquatic toxicity with an EC50 of 4.58 mg/L corresponding to 2.12 mg/L of the registration substance. Regarding long-term aquatic toxicity in the test according to OECD TG 212 using Danio rerio signifcant lethal and sublethal effects were identified. The 96 -hour LC50 and 8 -day EC10 for the actual test item was found to be 4.72 mg/L 2.101 mg/L, which corresponds to 2.18 mg/L and 0.97 mg/L for the REACH registration subtance.
Therefore, the registration substance is not classified as short-term (acute) aquatic toxicity but classified as long-term (chronic) aquatic toxicity Category 3 (H412: Harmful to aquatic life with long lasting effects) according to Regulation (EC) No 1272/2008 (CLP), as amended for the fourteenth time in Regulation (EU) 2020/217.
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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