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EC number: 236-060-1 | CAS number: 13126-12-0
- 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
Link to relevant study record(s)
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 05 December 2016 to 03 January 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 202 (Daphnia sp. Acute Immobilisation Test)
- Version / remarks:
- OECD Guidelines for Testing of Chemicals (April 2004) No 202 "Daphnia sp., Acute Immobilisation Test"
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Specific details on test material used for the study:
- Identification:
Rubidium nitrate
Physical state/Appearance:
White powder
Batch:
215091B002
Purity:
≥80% - ≤100%
Expiry Date:
01 September 2017
Storage Conditions:
Room temperature, over silica gel, in the dark
Intended use/Application:
Raw material for chemical industry. Catalyst - Analytical monitoring:
- yes
- Details on sampling:
- Analysis of the test preparations at 0 and 48 hours (see Annex 5 of stuy report) showed measured test concentrations to be near nominal concentrations and so the results are based on nominal test concentrations.
- Vehicle:
- yes
- Details on test solutions:
- Based on the results of the range-finding test the following test concentrations were assigned to the definitive test: 10, 18, 32, 56 and 100 mg/L.
A nominal amount of test item (200 mg) was dissolved in test water and the volume adjusted to 2 liters to give the 100 mg/L test concentration from which a series of dilutions was made to give further test concentrations of 10, 18, 32 and 56 mg/L.
Each prepared concentration was inverted several times to ensure adequate mixing and homogeneity.
The concentration and stability of the test item in the test preparations were verified by chemical analysis at 0 and 48 hours - Test organisms (species):
- Daphnia magna
- Details on test organisms:
- The test was carried out using 1st instar Daphnia magna derived from in-house laboratory cultures.
Adult daphnia were maintained in 150 mL glass beakers containing Elendt M7 medium (see Annex 2) in a temperature controlled room maintaining the water temperature at 18 to 22 °C. The lighting cycle was controlled to give a 16 hours light and 8 hours darkness cycle with 20 minute dawn and dusk transition periods. Each culture was fed daily with a mixture of algal suspension (Desmodesmus subspicatus) and Tetramin® flake food suspension. Culture conditions ensured that reproduction was by parthenogenesis. Gravid adults were isolated the day before initiation of the test, such that the young daphnids produced overnight were less than 24 hours old. These young were removed from the cultures and used for testing. The diet and diluent water are considered not to contain any contaminant that would affect the integrity or outcome of the study.
A positive control (Envigo Study Number MS29MC) used potassium dichromate as the reference item. Details of the positive control are given in Annex 3. The positive control was conducted between 29 February 2016 and 02 March 2016. - Test type:
- static
- Water media type:
- freshwater
- Total exposure duration:
- 48 h
- Hardness:
- The reconstituted water had an approximate theoretical total hardness of 250 mg/L as CaCO3.
- Test temperature:
- 21 deg C
- pH:
- 7.8 to 7.9
- Dissolved oxygen:
- 8.5 to 9.0 mg O2/L
- Details on test conditions:
- As in the range-finding test 150 mL glass beakers containing approximately 100 mL of test preparation were used. At the start of the test 5 daphnids were placed in each test and control vessel at random, in the test preparations. Four replicate test and control vessels were prepared. The test vessels were then covered to reduce evaporation and maintained in a temperature controlled room maintaining the water temperature at 18 to 22 °C with a maximum deviation of ±1 °C with a photoperiod of 16 hours light (between 200 and 1200 Lux) and 8 hours darkness with 20 minute dawn and dusk transition periods. The daphnids were not individually identified, received no food during exposure and the test vessels were not aerated.
The control group was maintained under identical conditions but not exposed to the test item.
The test preparations were not renewed during the exposure period. - Reference substance (positive control):
- no
- Key result
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- ca. 67 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality
- Key result
- Duration:
- 48 h
- Dose descriptor:
- NOEC
- Effect conc.:
- ca. 32 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality
- Key result
- Duration:
- 48 h
- Dose descriptor:
- LOEC
- Effect conc.:
- ca. 56 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mortality
- Details on results:
- Analysis of the test preparations at 0 and 48-Hours showed measured test concentrations to be near nominal concentrations and so the results are based on nominal test concentrations.
Exposure of Daphnia magna to the test item gave the following results as tabulated above. - Validity criteria fulfilled:
- yes
- Conclusions:
- The No Observed Effect Concentrations after 24 and 48 hours exposure were 100 and 32 mg/L respectively. The Lowest Observed Effect Concentrations after 24 and 48 hours exposure were greater than 100 and 56 mg/L respectively.
- Executive summary:
A study was performed to assess the acute toxicity of the test substance to Daphnia magna. The method followed was designed to be compatible with the OECD Guidelines for Testing of Chemicals (April 2004) No 202, "Daphnia sp., Acute Immobilisation Test" referenced as Method C.2 of Commission Regulation (EC) No. 440/2008. Following a preliminary range-finding test, twenty daphnids (4 replicates of 5 animals) were exposed to an aqueous solution of the test substance at nominal concentrations of 10, 18, 32, 56 and 100 mg/L for 48 hours at a temperature of 21 °C under static test conditions. The number of immobilized daphnia were recorded after 24 and 48 hours. Analysis of the test preparations at 0 and 48-Hours showed measured test concentrations to be near nominal concentrations and so the results are based on nominal test concentrations. The No Observed Effect Concentrations after 24 and 48 hours exposure were 100 and 32 mg/L respectively. The Lowest Observed Effect Concentrations after 24 and 48 hours exposure were greater than 100 and 56 mg/L respectively.
Reference
Description of key information
A study was performed to assess the acute toxicity of the test substance to Daphnia magna. The method followed was designed to be compatible with the OECD Guidelines for Testing of Chemicals (April 2004) No 202, "Daphnia sp., Acute Immobilisation Test" referenced as Method C.2 of Commission Regulation (EC) No. 440/2008. Following a preliminary range-finding test, twenty daphnids (4 replicates of 5 animals) were exposed to an aqueous solution of the test substance at nominal concentrations of 10, 18, 32, 56 and 100 mg/L for 48 hours at a temperature of 21 °C under static test conditions. The number of immobilized daphnia were recorded after 24 and 48 hours. Analysis of the test preparations at 0 and 48-Hours showed measured test concentrations to be near nominal concentrations and so the results are based on nominal test concentrations. The No Observed Effect Concentrations after 24 and 48 hours exposure were 100 and 32 mg/L respectively. The Lowest Observed Effect Concentrations after 24 and 48 hours exposure were greater than 100 and 56 mg/L respectively.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 67 mg/L
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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