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Reaction Mass of disodium [(E)-7-nitro-3-oxido-4-((2-oxidonaphthalen-1-yl)diazenyl)naphthalene-1-sulfonate) (E)-1-((3,5-dinitro-2-oxidophenyl)diazenyl)naphthalen-2-olate) chromate(2-)] and Hydrogen [(E)-7-nitro-3-oxido-4-((2-oxidonaphthalen-1-yl)diazenyl)naphthalene-1-sulfonate)(E)-1-((3,5-dinitro-2-oxidophenyl)diazenyl)naphthalen-2-olate) chromate(2-)]
EC number: 943-640-4 | 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
Endpoint summary
Administrative data
Description of key information
Additional information
Three acute studies on the different trophic levels are available on the analogue substances 1 and 2.
In particular, one acute toxicity study on aquatic invertebrates, namely Daphnia Magna, is available on analogue substance 1 (Huntsman, 1993). During the experiment, precipitation of the test item in the test medium occured and at the solubility limit of the test item under the experimental conditions the EC50, 48h is > 10 mg/l, corresponding also to the EC0 since no immobilisation was observed.
An acute toxicity to fish is also available on analogue substance 1(Huntsman, 1998) for the same analogue test item. Very low nominal concentrations were assessed, however some precipitations occured at the two highest doses and mortality was neverthless observed, showing a LC50,96h equal to 0.66 mg/l.
No acute toxicity on algae is considered since coloured substances as dyes show light absorption which have an indirect effect on the algae growth rate that is not related to the intrinsic toxicity of the substance. Therefore, following EU Commission Regulation, an acute toxicity test on Lemna minor was performed on the analogue substance 2 with the results of ECr50 = 192 mg/l (frond number and dry weight).
Table 4.1.0 of the Regulation 1272/2008 states that a substance is considered classified as hazardous to the aquatic environment in:
Category 1 Acute, if 96h, LC50 for fish and/or 48h, EC50 for crustacea and/or 72 -96h Er50 for algae or other aquatic plants < 1 mg/l and in
Category 1 Chronic if 96h,LC50 for fish and/or 48h,EC50 for crustacea and/or 72 -96h Er50 for algae or other aquatic plants are >0.1 and < 1 mg/l and the substance is not rapidly biodegradable.
Based on the results of the acute fish toxicity, on biodegradation and the read across considerations Acid Black 107:1 is classified as Acute 1,H400: very toxic to aquatic life and Chronic 1 H410: very Toxic to aquatic life with long lasting effects.
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