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Diss Factsheets
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EC number: 923-418-3 | 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
Short-term toxicity to aquatic invertebrates
Administrative data
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From 2006, November the 21st to december the 1st
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: No amendment to the study plan was requested. No incident, which could have affected the quality or the interpretation of the results obtained, was observed.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 007
- Report date:
- 2007
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 202 (Daphnia sp. Acute Immobilisation Test)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- 2007-01-12
Test material
- Reference substance name:
- Montanov 14
- IUPAC Name:
- Montanov 14
- Details on test material:
- - Name: Montanov 14
- Batch n°: T53815
- Appearence: pearls of was
- Purity: ES>99%
- Stability: water 96h
- Solubility: water<0.1g/L
- Expiration date: 22.09.07
- Storage: romm temperature 20 +/- 5°C
Constituent 1
Sampling and analysis
- Analytical monitoring:
- no
Test solutions
- Vehicle:
- no
- Details on test solutions:
- As the solubility lies below 100mg/L, the water-accomodated fraction was prepared for the test. this was done by weighing the nominal load, adding the corresponding amount of dilution water and shaking vigorously for 24 hours; the resulting solution was filtrated through 0.45 um filters.
Test organisms
- Test organisms (species):
- Daphnia magna
- Details on test organisms:
- Variety STRAUS
Strain: Berlin
Sex: female
Age: between 0 end 24 hours
Origin: Umweltbundesamt Berlin
Arrival of Strain: October 4th 2005
Selection of the test system was made following the proposal of the guidelines.
Food: unicellular green algae, not during the test
Medium renewal: twice a week
Photo period: 16/8 hours, using neon tubes
T: 20 +/- 2°C
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- yes
- Total exposure duration:
- 48 h
Test conditions
- Hardness:
- 2.50 mmol/L
- Test temperature:
- 21.4-22.4°C
- pH:
- from 7.4 to 8
- Dissolved oxygen:
- above 8.3 mg/L
- Details on test conditions:
- - Vessels: glass beakers, nominal volume 50 mL, tall shape
- Feeding: none
- lighting: none
-Temperature: 20 +/-2°C - Reference substance (positive control):
- yes
- Remarks:
- K2Cr2O7
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 24 h
- Dose descriptor:
- NOEC
- Effect conc.:
- ca. 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality
- Duration:
- 24 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality
- Duration:
- 24 h
- Dose descriptor:
- EC100
- Effect conc.:
- > 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality
- Duration:
- 48 h
- Dose descriptor:
- NOEC
- Effect conc.:
- ca. 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- > 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality
- Duration:
- 48 h
- Dose descriptor:
- EC100
- Effect conc.:
- > 100 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality
- Details on results:
- 24h EC50 of K2Cr2O7 was determined at 1.4mg/L
Immobilisation in the controls was 10% at he most
The lowest concentration of dissolved oxygen at the end of the test was 8.3mg/L
The highest pH variation was 0.4 units.
The study can be considered valid - Results with reference substance (positive control):
- 24h EC50 of K2Cr2O7 was determined at 1.4mg/L
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- 24h NOEC= 100mg/L
48h NOEC= 100mg/L
24h EC50i> 100mg/L
48h EC50> 100 mg/L - Executive summary:
This study was performed in order to evaluate the toxic potential of MONTANOV 14 towards freshwater shrimp, using species Daphnia magna. D magna STRAUSS, which belongs to the family of crustacea, was chosen in the guideline as a typical part of zoo-plancton.
As the solubility lies below 100mg/L, the water-accomodated fraction was prepared for the test. t his was done by weighing the nominal load, adding the corresponding amount of dilution water and shaking vigorously for 24 hours; the resulting solution was filtrated through 0.45 um filters.
In the main study, 3 concentrations of the test item was used, spaces by factor 10, the highesty being 100 mg/L were used. 20 Daphnia were exposed to the test item for 48 hours, immobilised Daphnia were counted.
24h EC50 of K2Cr2O7 was determined at 1.4mg/L, lying with demanded range of 0.6 -2.1mg/L.
The following results were obtained for the test item:
24h NOEC= 100mg/L
48h NOEC= 100mg/L
24h EC50i> 100mg/L
48h EC50> 100 mg/L
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