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EC number: 276-115-7 | CAS number: 71873-39-7
- 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
Toxicity to aquatic plants other than algae
Administrative data
Link to relevant study record(s)
Description of key information
EC50 (7d) > 100 mg/l (nominal), based on growth rate of frond number
Key value for chemical safety assessment
- EC10 or NOEC for freshwater plants:
- 31.3 mg/L
Additional information
There are no information about the toxicity potential to aquatic plants of Acid Red 336, thus the available data on structural analogous Similar Substance 02 have been taken into account. The read across approach can be considered as reliable and suitable for the purpose; details and explanations are included in the report attached to the IUCLID section 13.
The potentisl effects of the Similar Substance 02 were evaluated in a growth inhibition test using the aquatic plant Lemna gibba (duckweed). A semi-static test with nominal concentrations of 0 (control), 0.954, 3.05, 9.77, 31.3 and 100 mg/l was performed.
The initial mean measured concentration of test item in the test item solutions was 99 % of nominal. The overall mean concentration of fresh and aged samples was 96 % of nominal. Toxicological endpoints were evaluated using nominal concentrations of the test item.
On day 3 slightly shorter roots were observed at 31.3 mg/l. At 100 mg/l the fronds were curved and coloured red and offshoots were smaller. The roots were shortened. On day 5 shorter roots and smaller offshoots were observed at 31.3 mg/l. At 100 mg/l fronds were curved and coloured red with smaller offshoots. The roots were shortened. On day 7 partly shorter roots were observed at 9.77 mg/l. At 31.3 mg/l the fronds were partly coloured red with smaller offshoots. The roots were shortened. At 100 mg/l fronds were curved and coloured red with smaller offshoots. The roots were shortened.
Significant inhibitory effects were determined for yield of frond numbers and for growth rate of frond numbers at 100 mg/l (nominal): after 7 days of exposure, an inhinibition of the 76.2 % was recorded, based on the frond number yield. At the same concentration, the inhibition of the growth rate estimated on the basis of the frond number was 48.4 %. At the nominal concentration of 100 mg/l, data on yield and growth rate of dry weight indicated an inhibition of 86.4 % and 64.9 %, respectively.
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