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EC number: 236-715-1 | CAS number: 13466-20-1
- 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:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Publication is acceptable for assessment. Test method is well described. Test substance concentration not given.
- Principles of method if other than guideline:
- The acute toxicity of Barium chloride dihydrate to Daphnia magna was tested by exposing daphnids to the substance for 48 hours in a static system.
- GLP compliance:
- not specified
- Test organisms (species):
- Daphnia magna
- Details on test organisms:
- TEST ORGANISM
- Source: bred at testing laboratory, originally obtained from the University of Michigan,
- Age at study initiation (mean and range, SD): 12 ± 12 h
Feeding during test: yes
- Type of food: 0.5 g of powdered dried grass and 10g of enriched trout-fry granules to 250 mL of Lake Superior water and mixed vigorously in a blender for 5 minutes.
ACCLIMATION
- Type and amount of food: food suspension comprising powdered dried grass and enriched trout-fry granules.
- Feeding frequency: twice weekly during rearing - Test type:
- static
- Water media type:
- freshwater
- Limit test:
- no
- Total exposure duration:
- 48 h
- Hardness:
- 45.3 mg/L
- Test temperature:
- 18 ± 1 °C
- Dissolved oxygen:
- Dissolved oxygen concentrations in test containers were near saturation at all times.
- Details on test conditions:
- TEST SYSTEM
- Test vessel: test chambers
- No. of organisms per vessel: 10
- No. of vessels per concentration (replicates): 2
- No. of vessels per control (replicates): 2
TEST MEDIUM / WATER PARAMETERS
- Source/preparation of dilution water: Lake Superior water, Ba concentration: Barium 0.01 mg/L
- Chlorine: 1.2 mg/L
- Alkalinity: 42.3 mg/L
- Ca/mg ratio: 13.7/3.1 mg/L
OTHER TEST CONDITIONS
- Photoperiod:16:8 h
- Light intensity: 115 ft-c - Duration:
- 48 h
- Dose descriptor:
- LC50
- Effect conc.:
- 14.5 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- element
- Remarks:
- Barium
- Basis for effect:
- mortality
- Endpoint:
- short-term toxicity to aquatic invertebrates
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- weight of evidence
- Justification for type of information:
- Please refer to the analogue justification attached to chapter 13
- Reason / purpose for cross-reference:
- read-across source
- Duration:
- 48 h
- Dose descriptor:
- LC50
- Effect conc.:
- 14.5 mg/L
- Nominal / measured:
- nominal
- Conc. based on:
- element
- Remarks:
- Barium
Referenceopen allclose all
Description of key information
Key value for chemical safety assessment
Additional information
Data on the acute toxicity of barium bis(dihydrogen orthophosphate) to aquatic invertebrates are not available. The assessment was therefore based on experimental data on barium chloride dihydrate. The read across approach is in accordance with Regulation (EC) No. 1907/2006, Annex XI, 1.5.. The acute toxicity of barium sulphate to aquatic invertebrates was tested with wild caught specimen of Daphnia magna (Khangarot and Ray, 1988). The animals were exposed to the substance for 48 hours in a static test system. After 48 hours a LC50 of 32 mg/L based on the element Barium was determined. A comparable test was conducted by Biesinger and Christensen (1972). Daphnia magna were exposed to Barium chloride dehydrate for 48 hours in a static test system. Based on Barium a LC50 of 14.5 mg/L was determined.
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