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EC number: - | 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
Adsorption / desorption
Administrative data
Link to relevant study record(s)
- Endpoint:
- adsorption / desorption: screening
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- from 2018-03-21 to 2018-11-02
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 106 (Adsorption - Desorption Using a Batch Equilibrium Method)
- Version / remarks:
- 2000
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: MEP, RP, China. The Guidelines for the Testing of Chemicals: No. 106 "Adsorption-Desorption using a batch equilibrium method"
- Version / remarks:
- 2013
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- batch equilibrium method
- Media:
- soil
- Radiolabelling:
- no
- Test temperature:
- 25°C
- Analytical monitoring:
- yes
- Details on sampling:
- The aqueous phase (red soil, black soil, moisture soil and aquic brown soil), was removed and an equal volume of 0.01 M CaCl2 solution without test item was added to the soil phase. The sample was agitated for desorption equilibration time at 20~25 °C. The sample was centrifugated at 5000 r/min for 3 minutes and the centrifugal volume was recorded. The concentration of the aqueous phase was determined.
- Matrix no.:
- #1
- Matrix type:
- other: Black Soil
- % Clay:
- 33.4
- % Silt:
- 25.9
- % Sand:
- 40.7
- % Org. carbon:
- 1.16
- pH:
- 6.54
- CEC:
- 28.2 other: c mol/kg
- Matrix no.:
- #2
- Matrix type:
- other: Red Soil
- % Clay:
- 44.5
- % Silt:
- 14.3
- % Sand:
- 41.2
- % Org. carbon:
- 0.57
- pH:
- 5.02
- CEC:
- 12.7 other: c mol/kg
- Matrix no.:
- #3
- Matrix type:
- other: Paddy Soil
- % Clay:
- 18.1
- % Silt:
- 17.1
- % Sand:
- 64.8
- % Org. carbon:
- 1.14
- pH:
- 6.88
- CEC:
- 1.9 other: c mol/kg
- Matrix no.:
- #4
- Matrix type:
- other: Moisture Soil
- % Clay:
- 19.9
- % Silt:
- 17.9
- % Sand:
- 62.2
- % Org. carbon:
- 0.38
- pH:
- 7.82
- CEC:
- 1.9 other: c mol/kg
- Matrix no.:
- #5
- Matrix type:
- other: Aquic Brown Soil
- % Clay:
- 40.7
- % Silt:
- 42.8
- % Sand:
- 16.5
- % Org. carbon:
- 1.19
- pH:
- 5.47
- CEC:
- 7.3 other: c mol/kg
- Details on matrix:
- Five typical soils (red soil, black soil, paddy soil, moisture soil and aquic brown soil) differing in texture, clay content, organic matter content and pH value as the test soils are selected. The soils are sieved through 2 mm mesh sieve and stored under room temperature.
- Sample No.:
- #1
- Duration:
- 24 h
- Initial conc. measured:
- >= 8 - <= 800 other: mg/L
- Temp.:
- >= 20 - <= 25 °C
- Sample No.:
- #2
- Duration:
- 4 h
- Initial conc. measured:
- >= 8 - <= 800 other: mg/L
- Temp.:
- >= 20 - <= 25 °C
- Sample No.:
- #3
- Duration:
- 4 h
- Initial conc. measured:
- >= 8 - <= 800 other: mg/L
- Temp.:
- >= 20 - <= 25 °C
- Sample No.:
- #4
- Duration:
- 16 h
- Initial conc. measured:
- >= 8 - <= 800 other: mg/L
- Temp.:
- >= 20 - <= 25 °C
- Sample No.:
- #5
- Duration:
- 4 h
- Initial conc. measured:
- >= 8 - <= 800 other: mg/L
- Temp.:
- >= 20 - <= 25 °C
- Sample No.:
- #1
- Type:
- log Koc
- Value:
- 4.8 dimensionless
- pH:
- 5.02
- Temp.:
- 25 °C
- Matrix:
- Red Soil
- % Org. carbon:
- 0.57
- Sample No.:
- #2
- Type:
- log Koc
- Value:
- 3.1 dimensionless
- pH:
- 6.54
- Temp.:
- 25 °C
- Matrix:
- Black Soil
- % Org. carbon:
- 1.16
- Sample No.:
- #3
- Type:
- log Koc
- Value:
- 2.7 dimensionless
- pH:
- 6.88
- Temp.:
- 25 °C
- Matrix:
- Paddy Soil
- % Org. carbon:
- 1.14
- Sample No.:
- #4
- Type:
- log Koc
- Value:
- 2.7 dimensionless
- pH:
- 7.82
- Temp.:
- 25 °C
- Matrix:
- Moisture Soil
- % Org. carbon:
- 0.38
- Sample No.:
- #5
- Type:
- log Koc
- Value:
- 3.4 dimensionless
- pH:
- 5.47
- Temp.:
- 25 °C
- Matrix:
- Aquic Brown Soil
- % Org. carbon:
- 1.19
- Adsorption and desorption constants:
- Red Soil: KFads = 323.15; KFdes =1220
Black Soil: KFads = 15.111; KFdes = 24.044
Paddy Soil: KFads=6.080; KFdes =19.342
Moisture Soil: KFads=1.831; KFdes =13.158
Aquic Brown Soil: KFads=29.888; KFdes =43.521 - Sample no.:
- #1
- Duration:
- 24 h
- % Adsorption:
- 58
- Sample no.:
- #2
- Duration:
- 4 h
- % Adsorption:
- 68.4
- Sample no.:
- #3
- Duration:
- 4 h
- % Adsorption:
- 47.7
- Sample no.:
- #4
- Duration:
- 16 h
- % Adsorption:
- 32.5
- Sample no.:
- #5
- Duration:
- 4 h
- % Adsorption:
- 74.5
- Sample no.:
- #1
- Duration:
- 48 h
- % Desorption:
- 20.6
- Sample no.:
- #2
- Duration:
- 24 h
- % Desorption:
- -2.8
- Sample no.:
- #3
- Duration:
- 24 h
- % Desorption:
- -15.4
- Sample no.:
- #4
- Duration:
- 24 h
- % Desorption:
- -2
- Sample no.:
- #5
- Duration:
- 24 h
- % Desorption:
- 4.3
- Transformation products:
- not measured
- Validity criteria fulfilled:
- yes
- Conclusions:
- The substance has log Koc in soil types ranging from 2.7 - 4.8. Depending on the soil type, the substance is moderately to strongly absorbing to soil.
Reference
Description of key information
The substance has log Koc in 5 soil types ranging from 2.7 - 4.8. Depending on the soil type, the substance is moderately to strongly absorbing to soil. The highest log Koc is considered the worst case for the CSA. The log Koc was determined in an OECD 106 guideline study.
Key value for chemical safety assessment
- Koc at 20 °C:
- 56 693
Additional information
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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