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EC number: 800-884-5 | CAS number: 1154308-86-7
- 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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 121 (Estimation of the Adsorption Coefficient (Koc) on Soil and on Sewage Sludge using High Performance Liquid Chromatography (HPLC))
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- HPLC estimation method
- Media:
- soil/sewage sludge
- Test temperature:
- 25 ± 1°C
- Details on study design: HPLC method:
- EQUIPMENT
- Apparatus: Waters 2695 with Waters 486 uv detector
- Type: HPLC -UV
- Type, material and dimension of analytical column: Zorbax CN RP 250 x 4.6 mm, 5 μm
- Detection system: UV at 210 nm
MOBILE PHASES
- Type: 55/45 Methanol/0.01M Citrate buffer (pH 6.0)
- Experiments with additives carried out on separate columns: no
- pH: 6.0
- Solutes for dissolving test and reference substances: Methanol: Milli-Q water (55:45 v/v)
DETERMINATION OF DEAD TIME
- Method: by inert substances which are not retained by the column - Formamide
REFERENCE SUBSTANCES
- Identity: Formamide, Acetanilide, Methyl Benzoate, Naphthalene, 1,2,3-Trichlorobenzene, Phenanthrene and DDT
DETERMINATION OF RETENTION TIMES
- Quantity of test substance introduced in the column: 40 µg
- Quantity of reference substances: Formamide (1.2 µg), Acetanilide (0.2 µg), Methyl Benzoate (0.2 µg), Naphthalene (0.04 µg), 1,2,3-Trichlorobenzene (0.4 µg), Phenanthrene (0.4 µg) and DDT (0.8 µg)
- Intervals of calibration: reference substance injections bracketing 2 test item injections
REPETITIONS
- Number of determinations: 2
EVALUATION
- Calculation of capacity factors k': k′ =(tR - to)/to
tR : HPLC retention time of test and reference substance (minutes)
to : HPLC dead time (minutes)
Log10 k’ was then calculated for each reference compound
- Calculation of retention times: Automatic peak retention time parameters by Thermo Labsystems Atlas 2002, Release 1 Data Handling
- Determination of the log Koc value:
Additol® SXW 6246/90 coating additives is present as a complex reaction product of variable compocition. The chromatographic end-point was designed to determine the test item's principal hydrocarbon components Koc. A range of components were found to be present in Additol® SXW 6246/90 coating additives.
Following chromatography, a correlation graph was produced for the reference standard mix by plotting Log10 k’ value versus Log10 KOC value, for each compound. Literature Log10 KOC values were obtained from OECD Guideline 121.
A Log10 KOC value for each component of the test item was then extrapolated from the correlation graph of the reference standard mix run immediately adjacent to it. - Type:
- log Koc
- Value:
- >= 1.04 - <= 1.14 dimensionless
- Temp.:
- 25 °C
- Remarks on result:
- other: Principal Component (72.7-74.4% total peak area): Koc >=11.0 <=13.8
- Type:
- log Koc
- Value:
- >= 3.55 - <= 3.57 dimensionless
- Temp.:
- 25 °C
- Remarks on result:
- other: Minor Component (9.5-10.1% total peak area): Koc >=3548 <=3715
- Type:
- log Koc
- Value:
- >= 4.24 - <= 4.25 dimensionless
- Temp.:
- 25 °C
- Remarks on result:
- other: Minor Component (7.1-8.1% total peak area): Koc >=17378 <=17783
- Type:
- log Koc
- Value:
- >= 4.89 - <= 4.91 dimensionless
- Temp.:
- 25 °C
- Remarks on result:
- other: Minor Component (0.8-1.2% total peak area): Koc>=77625 <=81283
- Type:
- log Koc
- Value:
- >= 5.5 - <= 5.52 dimensionless
- Temp.:
- 25 °C
- Remarks on result:
- other: Minor Component (0.3-1.3% total peak area): Koc >=316228 <=331131
- Type:
- log Koc
- Value:
- > 5.63 dimensionless
- Temp.:
- 25 °C
- Remarks on result:
- other: Minor Components (0.9-4.6% individually of total peak area); all greater retention time than last eluting reference substance DDT (Log Koc = 5.63): Koc >=426580
- Details on results (HPLC method):
- - Retention times of reference substances used for calibration:
- Details of fitted regression line (log k' vs. log Koc):
- Graph of regression line:
- Average retention data for test substance:
For these details see overall remarks and attachments - Validity criteria fulfilled:
- yes
- Conclusions:
- Under the conditions of the study, the log Koc value of the main component (72.7-74.4%) was 1.04-1.14 (Koc = 11-14) while the Log Koc values of the minor components (18.6-25.3%) ranged from >3.55 to >5.63 (Koc >3548 to >426580).
- Executive summary:
A study was conducted to determine the adsorption / desorption of the test substance using high performance liquid chromatography (HPLC), according to OECD Guideline 121, in compliance with GLP. A range of components were found to be present in the test substance. The log Koc values for the test substance were determined to range from ≥1.04 to >5.63 (Koc ≥11 to >426580 L/kg), where the log Koc value of the main component (72.7-74.4%) was determined to be 1.04 -1.14 (Koc = 11-14) and the log Koc values of the minor components (18.6-25.3%) were >3.55 (Koc >3548). The log Koc values identified for the different components were as follows:
- log Koc: ≥1.04 - ≤1.14 (Koc ≥11.0-≤13.8) at 25°C (Principal Component (72.7-74.4% total peak area)
- log Koc: ≥3.55 - ≤3.57 (Koc ≥3548-≤3715) at 25°C (Minor Component (9.5-10.1% total peak area)
- log Koc: ≥4.24 - ≤4.25 (Koc ≥17378-≤17783) at 25°C (Minor Component (7.1-8.1% total peak area)
- log Koc: ≥4.89 - ≤4.91 (Koc ≥77625-≤81283) at 25°C (Minor Component (0.8-1.2% total peak area)
- log Koc: ≥5.5 - ≤5.52 (Koc ≥316228- ≤331131) at 25°C (Minor Component (0.3-1.3% total peak area)
- log Koc: >5.63 (Koc >426580) at 25°C (Minor Components (0.9-4.6% individually of total peak area)
Under the study conditions, the major components of the test substance indicate a low adsorption potential while the minor components indicate a higher adsorption potential (Browne, 2013).
Reference
Description of key information
The log Koc value of the main component (72.7-74.4%) was determined to be 1.04 -1.14 (Koc = 11-14), indicating low adsorption potential, while the log Koc values of the minor components (18.6 -25.3%) ranged from >3.55 to >5.63 (Koc >3548 to >426580) indicating high adsorption potential. Although the overall test substance can be considered to be not very adsorptive, the highest log Koc value of >5.63 (Koc >426580) representing <5% components of the test substance has been considered further for risk assessment as a conservative approach.
Key value for chemical safety assessment
- Koc at 20 °C:
- 426 580
Additional information
A study was conducted to determine the adsorption / desorption of the test substance using high performance liquid chromatography (HPLC), according to OECD Guideline 121, in compliance with GLP. A range of components were found to be present in the test substance. The log Koc values for the test substance were determined to range from ≥1.04 to >5.63 (Koc ≥11 to >426580 L/kg), where the log Koc value of the main component (72.7-74.4%) was determined to be 1.04 -1.14 (Koc = 11-14) and the log Koc values of the minor components (18.6-25.3%) were >3.55 (Koc >3548). The log Koc values identified for the different components were as follows:
- log Koc: ≥1.04 - ≤1.14 (Koc ≥11.0-≤13.8) at 25°C (Principal Component (72.7-74.4% total peak area)
- log Koc: ≥3.55 - ≤3.57 (Koc ≥3548-≤3715) at 25°C (Minor Component (9.5-10.1% total peak area)
- log Koc: ≥4.24 - ≤4.25 (Koc ≥17378-≤17783) at 25°C (Minor Component (7.1-8.1% total peak area)
- log Koc: ≥4.89 - ≤4.91 (Koc ≥77625-≤81283) at 25°C (Minor Component (0.8-1.2% total peak area)
- log Koc: ≥5.5 - ≤5.52 (Koc ≥316228- ≤331131) at 25°C (Minor Component (0.3-1.3% total peak area)
- log Koc: >5.63 (Koc >426580) at 25°C (Minor Components (0.9-4.6% individually of total peak area)
Under the study conditions, the major components of the test substance indicate a low adsorption potential while the minor components indicate a higher adsorption potential (Browne, 2013).
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