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EC number: 603-923-2 | CAS number: 135590-91-9
- 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
Toxicity to aquatic plants other than algae
Administrative data
Link to relevant study record(s)
- Endpoint:
- toxicity to aquatic plants other than algae
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 23 - 31 Oct 1998
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: OECD Draft-guideline, US-EPA Pesticide Assessment Guidelines J 123-2 and according to ASTM E 1415-91 guideline
- GLP compliance:
- yes
- Analytical monitoring:
- yes
- Vehicle:
- yes
- Details on test solutions:
- PREPARATION AND APPLICATION OF TEST SOLUTION (especially for difficult test substances)
- Method: The test substance was dissolved in nutrient medium. Acetone (p.a.) was used as an additional solvent to prepare the stock solutions. - Test organisms (species):
- Lemna gibba
- Details on test organisms:
- Species: Lemna gibba G3
Supplier: AgrEvo USA Company, AgrEvo Research Center, Environmental Biology Department, 703 NOR-AM Road, PO Box 538, Pikeville, NC 27863
Original supplier: Plant Hormone Laboratory, United States Department of Agriculture (USDA), Beltsville, MD - Test type:
- semi-static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 7 d
- Reference substance (positive control):
- yes
- Duration:
- 7 d
- Dose descriptor:
- EC50
- Effect conc.:
- > 11.9 mg/L
- Nominal / measured:
- meas. (TWA)
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
- Duration:
- 7 d
- Dose descriptor:
- NOEC
- Effect conc.:
- 2.32 mg/L
- Nominal / measured:
- meas. (TWA)
- Conc. based on:
- test mat.
- Basis for effect:
- growth rate
Reference
Findings:
Water quality parameters such as pH, oxygen content and temperature were determined to be within the
acceptable limits. Chemical analysis of all fresh and old testing solutions revealed test item concentrations below
80 % nominal. Since also the TWA measured figures were below 80% nominal, the TWA concentrations of AE
F107892 + AE F113225 were used to report the results (see table below).
Concentration (mg/L) |
Nominal |
3.2 |
5.6 |
10.0 |
18.0 |
32.0 |
AE F107892
|
7 d TWA |
1.07 |
1.67 |
4.41 |
4.91 |
8.54 |
AE F107892+ AE F113225 |
7 d TWA |
1.52 |
2.32 |
6.22 |
6.69 |
11.99 |
AE F113225 * |
7 d TWA |
0.42 |
0.60 |
1.68 |
1.55 |
3.19 |
* Calculation: difference of AE F107892 + 113225 and AE F107892 corrected by molecular weight ratio AE F113225 (345.2) / 107892 (373.26) |
Biological findings: A significant inhibition of biomass increase (dry weight) was observed at measured
concentrations > 6.22 mg/L resulting in NOEC of 2.32 mg/L test item. No morphological intoxication
symptoms were observed at any treatment level.
Conclusion:
In a static renewal exposure system for 7 days, AE F107892 had no phytotoxicity effects on the aquatic plant
Lemna gibba at concentrations up to and including 2 320 μg/L. Therefore, the NOEC was 2 320 μg/L and the 7-
d EC50 value was > 11 990 μg/L test item based on TWA measured concentrations.
Description of key information
EC50 (7 d) > 11.99 mg/L with Lemna gibba (OECD draft guideline, 1998)
NOEC (7 d) = 2.32 mg/L with Lemna gibba (OECD draft guideline, 1998)
Key value for chemical safety assessment
Additional information
A duckweed (Lemna gibba) growth inhibition test according to OECD draft guideline (1998) and US EPA J-123-2 is available. In the static renewal 7 days exposure system the test item had no phytotoxicity effects at concentrations up to and including 2.32 mg/L. Therefore, the NOEC was 2.32 mg/L and the 7-d EC50 value was > 11.99 mg/L test item based on TWA measured concentrations.
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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