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Diss Factsheets
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EC number: 207-838-8 | CAS number: 497-19-8
- 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:
- 1999
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Remarks:
- Method developed by Australian government authority. Taken from SIDS on sodium carbonate (2002) where a similar reliability was assigned.
- Principles of method if other than guideline:
- Method: method developed by NSW Environment Protection Authority (Warne & Julli, 1999)
- GLP compliance:
- no
- Analytical monitoring:
- not specified
- Vehicle:
- not specified
- Test organisms (species):
- Ceriodaphnia sp.
- Details on test organisms:
- - Strain: Not reported.
- Source/supplier: Not reported.
- Breeding method: Cultures maintained in 2-L glass beakers and transferred to fresh water 3 times weekly.
- Age: Neonates less than 24 hr old.
- Feeding: After water renewal at a concentration of 25,000 cell/ml of each of the unicellular algae Pseudokirchneriellia subcapitata Printz and Ankistrodesmus sp.
- Pretreatment: Not reported.
- Feeding during test: Not fed.
- Control group: Yes. - Test type:
- semi-static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 48 h
- Post exposure observation period:
- no
- Details on test conditions:
- DILUTION WATER
- Source: Dechlorinated Sydney mains water filtered, aged and adjusted to 500 microS/cm with seawater.
- Aeration: Not reported.
- Alkalinity: Not reported.
- Hardness: Not reported.
- Salinity: Not reported.
- TOC: Not reported.
- Ca/Mg ratio: Not reported.
- Na/K ratio: Not reported.
- TSS: Not reported.
- pH: Measured, not described.
- Oxygen content: Measured, not described.
- Conductance: Measured, not described.
- Holding water: Not reported.
TEST SYSTEM
- Concentrations: The bioassay consisted of five concentrations of sodium carbonate or soda ash in geometric series plus a control.
- Renewal of test solution: No.
- Exposure vessel type: 250 ml glass beakers which held 200 ml of the test solution or control solution.
- Number of replicates, individuals per replicate: For each concentration triplicates of five cladocera per beaker glass were used.
- Test temperature: 22-24°C
- Dissolved oxygen: Measured, not described.
- pH: Measured, not described.
- Adjustment of pH: Not reported.
- Intensity of irradiation: Below 1000 1x at the surface of the solution.
- Photoperiod: 16:8 h light:dark - Reference substance (positive control):
- not specified
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- 200 - 227 mg/L
- Basis for effect:
- mobility
- Reported statistics and error estimates:
- Trimmed Spearman-Karber method
- Conclusions:
- Test with Ceriodaphnia cf. dubia exposed 48 hr resulted in a EC50 values for sodium carbonate were 200 to 227 mg/L.
- Executive summary:
A toxicity test was performed with laundry detergent components and the freshwater cladoceran Ceriodaphnia cf. dubia. Reported EC50 values for 48 hr exposure to sodium carbonate were 200 to 227 mg/L. The study was well documented and meets the generally accepted scientific principles.
Reference
RESULTS: EXPOSED
- Nominal/measured concentrations: Values based on nominal
concentrations.
- Concentration / response curve: Not reported.
- Cumulative immobilisation: Not reported.
- Effect concentration vs. test substance solubility: Not
reported.
- Other effects: Not reported.
RESULTS CONTROL: Test was considered invalid when more than
10% of the control neonates were immobilized.
RESULTS: TEST WITH REFERENCE SUBSTANCE
- Concentrations: Not reported.
- Results: Not reported.
Description of key information
A toxicity test was performed with laundry detergent components and the freshwater cladoceran, Ceriodaphnia cf. dubia. Reported EC50 values for 48 hr exposure to sodium carbonate were 200 to 227 mg/L. The study was well documented and meets the generally accepted scientific principles.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 200 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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.