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EC number: 238-947-9 | CAS number: 14874-82-9
- 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 fish
Administrative data
Link to relevant study record(s)
- Endpoint:
- short-term toxicity to fish
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Not reported
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- As JIS K0102 -55
- GLP compliance:
- no
- Analytical monitoring:
- no
- Vehicle:
- yes
- Details on test solutions:
- PREPARATION AND APPLICATION OF TEST SOLUTION (especially for difficult test substances)
- Method: Test item dissolved in 10 times its weight of a 1:1 mixture of acetone and Nikkol HCO40. Solution was then dispersed into the vessels to provide the test concentrations
- Controls: Solvent control included
- Chemical name of vehicle (organic solvent, emulsifier or dispersant): acetone and Nikkol HCO40 - Test organisms (species):
- Oryzias latipes
- Details on test organisms:
- Test organisms (species): Oryzias latipes
Details on test organisms - source: Wholesale Tropicals Ltd. London
Details on test organisms - holding conditions prior to test: Held for 14 days prior to test at 22 + 1⁰C in dechlorinated tap water
Details on test organisms - life stage of test species used: Mean length 25.4 mm, mean weight 1.7g - Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 48 h
- Hardness:
- 307 mg/l
- Test temperature:
- 21 - 22°C
- pH:
- 7.8 (dilution water)
- Dissolved oxygen:
- 7.8 - 8.4 mg/L
- Nominal and measured concentrations:
- nominal concentrations: 10, 20, 30 40, 60 and 80 mg/L were tested
- Details on test conditions:
- test vessel 10L glass aquaria
aeration gentle aeration via narrow-bore glass tubes
no of organisms per vessel 10
no of replicates per concentration Seven groups, six test concentrations and a control group which was exposed to 800 mg/l of HCO40/acetone
photoperiod 16 /8 light/dark
TEST SYSTEM
- Test vessel: Glass aquaria holidng 10L test solution
- Aeration: Gentle aeration via narrow-bore glass tubes
- No. of organisms per vessel: 10
- No. of vessels per concentration (replicates): 1
- No. of vessels per vehicle control (replicates): 1
TEST MEDIUM / WATER PARAMETERS
- Source/preparation of dilution water: See below
- Total organic carbon: 6.6 mg/L
- Alkalinity: 175 mg/L as CaCO3
- pH: 7.8
OTHER TEST CONDITIONS
- Photoperiod: 16h light:8h dark
EFFECT PARAMETERS MEASURED (with observation intervals if applicable) : Mortality recorded after 24 and 48 hours
- Reference substance (positive control):
- no
- Duration:
- 48 h
- Dose descriptor:
- LC50
- Effect conc.:
- 19 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality (fish)
- Remarks on result:
- other: Confidence limits: 16 - 21 mg/L
- Details on results:
- Results calculated using method of Litchfield and Wilcoxon 1949. J. Pharmac.exp.Ther. 96 99-113
- Validity criteria fulfilled:
- not specified
- Conclusions:
- The 48 h LC50 for dicarbonyl(pentane-2,4-dionato-O,O2)rhodium is 19 mg/L.
- Executive summary:
Ross and Pell (1981) is a non-guideline, non-GLP study. Solvents were used for preparation of the test solutions and a solvent control was included. Only a 48-hour exposure period was used. The study meets some OECD guideline 203 criteria but there are some limitations in the study design and there was no analytical verification of test concentrations and it is therefore assigned a Klimisch score of 2 (reliable with restircitions). However, despite the limitations it is considered suitable for use for assessing this endpoint. The 48 h LC50 of dicarbonyl(pentane-2,4 -dionato-O,O2)rhodium is 19 mg/L.
Reference
Description of key information
The 48h LC50 of dicarbonyl(pentane-2,4-dionato-O,O2)rhodium is 19 mg/L.
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 19 mg/L
Additional information
Ross and Pell (1981) is a non-guideline, non-GLP study. Solvents were used for preparation of the test solutions and a solvent control was included. Only a 48-hour exposure period was used. The study meets some OECD guideline 203 criteria but there are some limitations in the study design and there was no analytical verification of test concentrations. It is therefore assigned a Klimisch score of 2 (reliable with restrictions). Despite the study limitations the study is considered suitable for use for assessing this endpoint. The 48h LC50 of dicarbonyl(pentane-2,4 -dionato-O,O2)rhodium is 19 mg/L.
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