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EC number: 407-230-4 | CAS number: 126637-70-5 BLUE GS 1259 R5
- 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 microorganisms
Administrative data
- Endpoint:
- activated sludge respiration inhibition testing
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1990-10-10 to 1991-02-01
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline-conform study under GLP without deviations.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 991
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 209 (Activated Sludge, Respiration Inhibition Test
- Deviations:
- no
- GLP compliance:
- yes
Test material
- Reference substance name:
- Dilithium disodium (5,5'-diamino-(μ-4,4'-dihydroxy-1:2-κ-2,O4,O4',-3,3'-[3,3'-dihydroxy-1:2-κ-2-O3,O3'-biphenyl-4,4'-ylenebisazo-1:2-(N3,N4-η:N3',N4'-η)]-dinaphthalene-2,7-disulfonato(8)))dicuprate(2-)
- EC Number:
- 407-230-4
- EC Name:
- Dilithium disodium (5,5'-diamino-(μ-4,4'-dihydroxy-1:2-κ-2,O4,O4',-3,3'-[3,3'-dihydroxy-1:2-κ-2-O3,O3'-biphenyl-4,4'-ylenebisazo-1:2-(N3,N4-η:N3',N4'-η)]-dinaphthalene-2,7-disulfonato(8)))dicuprate(2-)
- Cas Number:
- 126637-70-5
- Molecular formula:
- Hill formula: C32 H16 Cu2 Li2 N6 Na2 O16 S4 CAS formula: C32 H16 Cu2 N6 O16 S4. 2Li 2Na
- IUPAC Name:
- dicopper(2+) dilithium(1+) disodium 4,4'-bis[2-(8-amino-1-oxido-3,6-disulfonatonaphthalen-2-yl)diazen-1-yl]-[1,1'-biphenyl]-3,3'-bis(olate)
Constituent 1
Sampling and analysis
- Analytical monitoring:
- yes
- Details on sampling:
- - Concentrations: 1, 3.2, 10, 32, 50, and 100 mg/l
- Sampling method: After 180 minutes of aeration at 22.5 °C, the first sample was taken for oxygen measurement over a period of up to 10 minutes. Thereafter, in 15 minutes intervals, the rest of the samples were submitted to measurement of oxygen concentration. Sampling was started with the negative control 1. Thereafter, the measurements were continued with the positive controls and the test article samples. Finally, the oxygen consumption of negative control 2 was determined.
- Sample storage conditions before analysis: All samples were worked-up and analyzed on the day of sampling.
Test solutions
- Vehicle:
- no
Test organisms
- Test organisms (species):
- activated sludge of a predominantly domestic sewage
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 3 h
- Post exposure observation period:
- not applicable
Test conditions
- Hardness:
- 14.2 - 15.0 dH°
- Test temperature:
- 19.3 - 20.4 °C
- pH:
- The initial pH of the systems was, on average, 7.9 for untreated, 7.8 and 7.9 for the treated samples. A t the end of the exposure period, the pH for the respective concentrations were 8.4, 8.5 and 8.4.
- Dissolved oxygen:
- 8.2 - 9.4 mg/l O2
- Salinity:
- Not being reported as such, however the detailed mineral composition of the test medium is given in the original study report.
- Nominal and measured concentrations:
- Measured concentration vary between 79.6 - 108.6 mg/l of nominal concentrations.
- Reference substance (positive control):
- yes
- Remarks:
- 3,5-dichlorophenol
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 3 h
- Dose descriptor:
- IC50
- Effect conc.:
- > 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- inhibition of total respiration
- Remarks:
- respiration rate
- Duration:
- 3 h
- Dose descriptor:
- IC10
- Effect conc.:
- >= 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- inhibition of total respiration
- Remarks:
- respiration rate
- Results with reference substance (positive control):
- - Results with reference substance valid? yes, IC50 of positive reference substance was found within the expected concentration range
- Relevant effect levels: IC50 = 7.3 mg/l
- Other: - Reported statistics and error estimates:
- no statistics applied
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Remarks:
- positive control substance data valid
- Conclusions:
- The IC50 was determined to be >l00 mg/l. In conclusion, the registered substance was found to be non-toxic to waste-water bacteria.
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