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EC number: - | CAS number: -
- 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)
Description of key information
48 h EC50 = > 1000 mg/L, 48 h NOEC = 10 mg/L; Daphnia magna; EPA OTS 797.1300; Collins (1993b)
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 1 000 mg/L
Additional information
In the aquatic environment, boron is expected to be the active species of orthoboric acid, potassium salt. Boron is not considered toxic to aquatic invertebrates as established by numerous acute toxicity studies. Additionally, orthoboric acid, potassium salt was tested as manufactured (45% w/w in highly refined mineral oil) in Daphnia magna in accordance with EPA OTS 797.1300. During the study, the daphnia were exposed to the test material at nominal concentrations of 0, 10, 26, 64, 160, 400 and 1000 mg/L under static renewal conditions; all tests were conducted using water soluble fractions. Under the conditions of the study no immobilisation was observed among daphnids exposed to any of the treatment levels tested at study termination. Sub-lethal effects (e.g. lethargy,
erratic behaviour) were observed among mobile daphnids exposed to the five highest treatment levels tested. No immobilisation or toxicant related sub-lethal effects were observed among organisms exposed to the 10 mg/L or control solutions. Based on the nominal concentrations of test material, the 48 hour EC50 value was determined to be >1000 mg/L and the NOEC to be 10 mg/L. The study was performed in line with GLP and an accepted standardised guideline with a high standard of reporting and assigned a reliability score of 1.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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