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EC number: 231-820-9 | CAS number: 7757-82-6
- 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
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Literature data
Data source
Reference
- Reference Type:
- publication
- Title:
- Toxicity of Laundry Detergent Components to a Freshwater Cladoceran and Their Contribution to Detergent Toxicity
- Author:
- Warne M. St. J. and Schifko A. D.
- Year:
- 1 999
- Bibliographic source:
- Ecotoxicology and Environmental Safety 44, 196}206 (1999), Environmental Research, Section B, Article ID eesa.1999.1824.
Materials and methods
- Principles of method if other than guideline:
- The acute 48-h immobilization tests was conducted using methods developed by the NSW Environment Protection Authority (Warne and Julli, in press).
- GLP compliance:
- not specified
Test material
- Reference substance name:
- Sodium sulphate
- EC Number:
- 231-820-9
- EC Name:
- Sodium sulphate
- Cas Number:
- 7757-82-6
- Molecular formula:
- H2O4S.2Na
- IUPAC Name:
- disodium sulfate
- Details on test material:
- Storage
- Temperature: 22 ± 2°C
- Light/dark: dark
Constituent 1
Test solutions
- Details on test solutions:
- Stock solutions was made by dissolving the appropriate amount in 1 or 2 L of the water and then gently stirred for 12 h in the dark at 23±1°C using Teflon magnetic stirrers.
Light was excluded during the stirring to minimize photodegradation of the chemicals.
Stock solutions were diluted to the appropriate concentrations immediately prior to the commencement of a test.
Test organisms
- Test organisms (species):
- Ceriodaphnia dubia
- Details on test organisms:
- TEST ORGANISM
Culture:
C. cf. dubia were cultured and tested at 23±1°C in dechlorinated Sydney mains water which was fltered (1 lm), aged (1 month), and adjusted to 500 µS/cm with seawater. Cultures of C. cf. dubia were maintained in 2-L glass beakers and transferred to fresh water three times weekly.
Food was provided after water renewal at a concentration of 25000 cells/ml of each of the unicellular algae Pseudokirchneriellia subcapitata Printz (formerly named Selenastrum capricornutum) and Ankistrodesmus sp.
All neonates used in the toxicity tests were less than 24 h old.
Study design
- Test type:
- static
- Water media type:
- freshwater
- Total exposure duration:
- 48 h
Test conditions
- Test temperature:
- 23 ± 1°C
- Details on test conditions:
- TEST SYSTEM
Each bioassay consisted of five concentrations of substance arranged in a geometric series, plus a control.
- Test vessel: 250 mL glass beakers, which held 200 mL of solution
- No. of organisms per vessel: five cladocera were randomly allocated to each test beaker and each treatment in a test was triplicated.
TEST CONDITIONS
The temperature, dissolved oxygen, pH, and conductivity of the test solutions were measured immediately prior to the addition of the cladocera and on completion of each bioassay.
- Photoperiod: 16:8-h light to dark regime
- Light intensity: 1000 lx at the surface of the solutions.
EFFECT PARAMETERS MEASURED: immobilization that was defined as the absence of visible movement by the cladocera within 15 s of gentle agitation of the test solution (ASTM, 1988).
VALIDATION CRITERIA
Tests were considered invalid and the data not included in the study if more than 10% of the control neonates were immobilized.
Results and discussion
Effect concentrationsopen allclose all
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- ca. 3 150.21 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
- Remarks on result:
- other: 95
- Duration:
- 48 h
- Dose descriptor:
- EC50
- Effect conc.:
- ca. 22.178 mmol/L
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Basis for effect:
- mobility
- Remarks on result:
- other: 95
- Details on results:
- EC50 at 48h: 3150.21 mg/L (CL: 2807-3535)
EC50 at 48h: 22.1783 mmol/L (CL: 19.76-24.89)
Applicant's summary and conclusion
- Conclusions:
- Ceriodaphnia dubia EC50 at 48h: 3150.21 mg/L (CL: 2807-3535)
Ceriodaphnia dubia EC50 at 48h: 22.1783 mmol/L (CL: 19.76-24.89) - Executive summary:
The acute 48-h immobilization tests on Cladoceran C. cf. dubia was conducted using methods developed by the NSW Environment Protection Authority (Warne and Julli, in press). Each bioassay consisted of five concentrations of a detergent component arranged in a geometric series, plus a control. Five cladocera were randomly allocated to each test beaker and each treatment in a test was triplicated.
Results
Ceriodaphnia dubia EC50 at 48h: 3150.21 mg/L (CL: 2807-3535)
Ceriodaphnia dubia EC50 at 48h: 22.1783 mmol/L (CL: 19.76-24.89)
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