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Diss Factsheets
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EC number: 240-898-3 | CAS number: 16872-11-0
- 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
Endpoint summary
Administrative data
Description of key information
Additional information
For tetrafluoroboric acid (HBF4) the base set data are available either from the substance itself or from its structural analogues sodium tetrafluoroborate (NaBF4) and potassium tetrafluoroborate (KBF4).
A GLP-compliant guideline short-term toxicity study with freshwater fish is available for HBF4. Prior to the initiation of the test the pH value of the stock solution was adjusted to 7.5 with NaOH. The critical effect concentration is a 96-h LC50 value of 1300 mg/L in zebrafish (Brachidanio rerio).
A GLP-compliant guideline short-term toxicity study with aquatic invertebrates is available for the HBF4 structural analogue KBF4. The 48 -h EC50 value is determined at >100 mg/L which is equivalent to >70 mg/L when corrected for molecular weight of HBF4. In addition, a non-GLP near guideline study short-term toxicity study is available for the HBF4 structural analogue NaBF4. In this study a 48 -h EC50 value of 4766 mg/L NaBF4 was determined which is equivalent to 3811 mg/L HBF4 after correction for molecular weight. As no effects were seen at any of the KBF4 concentrations tested and in addition the effect value from the NaBF4 study was considerably higher, molecular weight correction of the critical effect value of >100 mg/L is considered non-proportional for purposes of risk assessment and classification and labeling. Therefore the critical effect value of HBF4 for aquatic invertebrates is maintained at 100 mg/L.
Long-term toxicity data for aquatic invertebrates are also available for the HBF4 structural analogue NaBF4. The 21-d NOEC for NaBF4 in daphnids was determined at 188 mg/L which is equivalent to 150 mg/L when corrected for the molecular weight of HBF4.
A GLP-compliant guideline study with freshwater algae is available for the HBF4 structural analogue KBF4. The 72-h ErC50 and NOEC values for KBF4 in alga were determined at >100 mg/L and 100 mg/L, respectively. The EC50 value is maintained at 100 mg/L (i.e. not corrected for molecular weight) as no effects were seen up to the highest concentration tested and lowering of the EC50 values is considered non-proportional for purposes of risk assessment and classification and labeling. The 72-h NOErC is corrected for molecular weight which leads to a value of 70 mg/L.
A GLP-compliant guideline microorganism growth inhibition study is available for HBF4. In this study Pseudomonas putida were exposed to test concentrations of HBF4 with and without pH correction for a period of 18 hours under static conditions. The 18-h EC50 and EC10 values were 6.4 and 61.3 mg/L without pH adjustment en 397 and 4974 mg/L at pH 7.4 (nominal concentrations). The 18-h EC10 pH corrected value of 397 mg/L at pH 7.4 is used in the assessment.
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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