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EC number: 471-980-9 | CAS number: 1016986-95-0
- 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
Adsorption / desorption
Administrative data
- Endpoint:
- adsorption / desorption
- Remarks:
- adsorption/desorption
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Testing phase 2005-09-01 to 2005-10-13. Final report completed and signed 2005-11-30.
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Meets the criteria for classification as Reliable without restriction according to Klimisch et al (1997)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 005
- Report date:
- 2005
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: 2001/59/EEC, C19
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- HPLC estimation method
- Media:
- other: HPLC
Test material
- Reference substance name:
- -
- EC Number:
- 471-980-9
- EC Name:
- -
- Cas Number:
- 1016986-95-0
- Molecular formula:
- Hill formula: C42 H24 Lim N9 Nan O15 S6 m+n=5 3=
- IUPAC Name:
- 7-{2-[2-(2-{5-cyano-4-methyl-2,6-bis[(4-sulfophenyl)amino]pyridin-3-yl}diazen-1-yl)-4-(naphthalen-2-yl)-1,3-thiazol-5-yl]diazen-1-yl}naphthalene-1,3,5-trisulfonic acid trilithium hydride disodium hydride
Constituent 1
Study design
- Test temperature:
- HPLC Column temperature 40 C
HPLC method
- Details on study design: HPLC method:
- EQUIPMENT
- Apparatus: A HPLC system comprising of the following components - autosampler, workstation, Phenosphere Next 5u CN column (250 x 4.6 x mm id)
- Injection volume 10ul.
- UV detector wavelength: Dead time and reference standards 210nm, sample 254nm.
MOBILE PHASES
- Type: Methanol:Reverse osmosis water (55:45 v/v) adjusted to pH 7 with 1M sodium hydroxide pumped at a flow rate of 1ml/min
DETERMINATION OF DEAD TIME
- Method: by means of inert substances (Formamide) which are not retained by the column.
REFERENCE SUBSTANCES
- Identity: Acetanilide, Phenol, Isoproturon, Triadimenol, Linuron, Naphthalene, Endosulfan-diol, Fenthion, Endosulfan, Phenanthrene, Diclofop-methyl, DDT.
REPETITIONS
- Number of determinations: two
EVALUATION
- Calculation of capacity factors k': (retention time of test substance - column dead time)/ column dead time
- Calculation of retention times: measured by HPLC
- Determination of the log Koc value: Determined from equation of the line from the calibration graph of logKoc versus logk'
Batch equilibrium or other method
- Analytical monitoring:
- no
Results and discussion
Adsorption coefficientopen allclose all
- Type:
- log Koc
- Value:
- < 1.25
- Temp.:
- 40 °C
- Type:
- Koc
- Value:
- < 17.8
- Temp.:
- 40 °C
Results: HPLC method
- Details on results (HPLC method):
- - Retention times of reference substances used for calibration (min):
Acetanilide 3.78
Phenol 3.68
Isoproturon 4.597
Triadimenol 5.33
Linuron 5.44
Naphthalene 5.97
Endosulfan-diol 6.52
Fenthion 8.10
Endosulfan 13.33
Phenanthrene 10.02
Diclofop-methyl 12.62
DDT 38.01
- Details of fitted regression line (log k' vs. log Koc): r=0.991
- Average retention data for test substance: Injection 1) 1.609 min, injection 2) 1.612 min.
Any other information on results incl. tables
The low adsorption properties of the test material containing salted sulfonic acid functional groups deterimined by the HPLC estimation method were consistent with the extremely high water solubility and low partition coefficient characteristics. Although the determined value is believed to accurately assess the affinity of the test material for the organic carbon content of soils and sewage sludge, the method guideline specifically requiring the analysis of substances in an ionised form if present within the environmentally relevant pH range of 5.5 to 7.5: the mobility of the test material in soil and sewage sludge may also be influenced by additional interactions other than partitioning not addressed by the the test method, due to the anionic nature of the test material.
The alternative use of computer-based estimation programs and/or Quantitive Structure Activity Relationships (QSAR's) for materials of this nature are considered invalid as estimates are typically derived from the partition coefficient value. Therefore once more the possible secondary interaction originating from the anionic charges present on the test material are not addressed.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- The adsorption coefficient of the test material has been determined to be <17.8, log10 Koc <1.25.
- Executive summary:
Introduction
This study was undertaken to determine th adsorption coefficient (Koc) of the test substance using a High Performance Liquid Chromotography (HPLC) correlation technique. The method was designed to be compatible with the following:
Method C19 of Commission Directive 2001/59/EC (which constitutes Annex V of Council Directive 67/548/EEC).
Results and Conclusions
The adsorption coefficient (Koc) of the test material was determined to be <17.8. The log10 Koc was determined to be <1.25.
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