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EC number: 609-051-9 | CAS number: 35000-37-4
- 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:
- 05.03.2008 to 02.06.2008
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 008
- Report date:
- 2008
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 202 (Daphnia sp. Acute Immobilisation Test)
- Qualifier:
- according to guideline
- Guideline:
- EU Method C.2 (Acute Toxicity for Daphnia)
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- [2-(tert-butoxy)-2-oxoethyl]triphenylphosphanium chloride
- EC Number:
- 609-051-9
- Cas Number:
- 35000-37-4
- Molecular formula:
- C24H26ClO2P
- IUPAC Name:
- [2-(tert-butoxy)-2-oxoethyl]triphenylphosphanium chloride
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
Constituent 1
Sampling and analysis
- Analytical monitoring:
- yes
Test solutions
- Details on test solutions:
- In the final test twenty daphnia per test group (5 per vessel, 4 vessels) were exposed to a control and nominal DCM concentrations of 1.0, 2.2, 4.6, 10, 22 and 46 mg/l. The total test period was 48 hours and a static test system was applied. Samples for analytical confirmation of actual exposure concentrations were taken at the start and the end of the test period.
Test organisms
- Test organisms (species):
- Daphnia magna
- Details on test organisms:
- Species: Daphnia magna (Crustacea, Cladocera) (Straus, 1820), at least third generation, obtained by acyclical parthenogenesis under specified breeding conditions.
Source: In-house laboratory culture with a known history.
Reason for selection: This system has been selected as an internationally accepted invertebrate species.
Validity of batch: Daphnids originated from a healthy stock, 2nd to 51 h brood, showing no signs of stress such as mortality >20%, presence of males, ephippia or discoloured animals and there was no delay in the production of the first brood.
Characteristics: For the test selection of young daphnids with an age of< 24 hours, from parental daphnids of more than two weeks old.
Breeding:
Start of each batch: With newborn daphnids, i.e. less than 3 days old, by placing about 250 of them into 5 litres of medium in an all-glass culture vessel.
Maximum age of the cultures: 4 weeks
Renewal of the cultures: After 7 days of cultivation half of the medium twice a week.
Temperature of medium: 18 - 22 °C
Feeding: Daily, a suspension of fresh water algae.
Medium: M7, as prescribed by Dr. Elendt-Schneider (Elendt, B.-P., 1990: Selenium deficiency in Crustacea. An ultrastructural approach to antennal
damage in Daphnia magna Straus. Protoplasma 154, 25-33).
Study design
- Test type:
- static
- Water media type:
- freshwater
- Limit test:
- yes
- Total exposure duration:
- 48 h
Test conditions
- Hardness:
- 180 mg/l expressed as CaC03
- Test temperature:
- 19 - 20.7 °C
- pH:
- 7.7 - 8.0
- Dissolved oxygen:
- 8.9 mg/l
- Details on test conditions:
- Test duration: 48 h
Test type: static
Test vessels: 100 ml, all-glass
Medium: Adjusted ISO medium
Number of daphnids: 20 per concentration
Loading: 5 per vessel containing 80 ml of test solution
Light: 16 hours photoperiod daily at low intensity (19 lux)
Feeding: No feeding
Aeration: No aeration of the test solutions.
Introduction of daphnids: Within 1/2 hour after preparation of the test solutions.
Results and discussion
Effect concentrations
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- 10 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
- Remarks on result:
- other: 95%CL: 8.9-12 mg/l
Any other information on results incl. tables
Analyses of the samples showed that measured concentrations were stable and in agreement with nominal (85 -103%).
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- Under the conditions of the present study DCM did not induce acute immobilisation of Daphnia magna at 4.6 mg/1 after 48 hours of exposure
(NOEC). The 48h-EC50 was 10 mg/l based on analytically confirmed nominal concentrations (95% confidence interval between 8.9 and 12 mg/l).
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