Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 231-569-5 | CAS number: 7637-07-2
- 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
Bioaccumulation: aquatic / sediment
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Additional information
When release in the atmosphere boron trifluoride (BF3) molecules in contact with atmospheric humidity form a complex: dihydrated boron trifluoride (BF3, 2H2O). On the opposite if BF3 is directly brought into contact with water, it reacts violently. That is the reason why all the assessment of environmental fate and pathways is based on the properties of the more stable dihydrate form of boron trifluoride and those of its breakdown products in water: boric acid and fluoboric acid.
The abiotic degradation (hydrolysis) of tetrafluoroborate in water are ionic species and finally boric acid . Therefore it can be reasonably assumed that they will not be characterized by a high potential of bioaccumulation.
The WHO (1998) review of boron noted that highly water soluble materials are unlikely to bioaccumulate to any significant degree and that borate species are all present essentially as undissociated and highly soluble boric acid at neutral pH. The available data indicate that both experimental data and field observations support the interpretation that borates are not significantly bioaccumulated
For inorganic chemicals, estimates of bioaccumulation potential are not reliably predicted by octanol/water partitioning data. Although boric acid has a low measured Pow value (log Pow = - 1.09, Cordia, 2003a), the result should not be considered an appropriate model system.Laboratory data in oysters and salmon demonstrate low Bioconcentration Factors (BCF) for boron, although the tests pre-date current protocols.Thompson et al.(1976) reported BCF values of 0.7 to 1.4 L/kg for Pacific oysters (Crassostrea gigas) and showed that boron levels in tissue of sockeye salmon (Oncorhynchus nerka) were not significantly different from test water concentrations. Tissue concentrations in the oyster returned to background in 25 days. Hamilton and Wiedmeyer (1990) reported BCF < 0.1 in Chinook salmon fed boron-supplemented diets for 60 to 90 days. Suloway et al. (1983) reported a bioconcentration factor of 0.3 L/kg for fathead minnow (Pimephales promelas) and green sunfish (Lepomis cyanella), when exposed to components of coal fly ash extract containing boron at concentrations ranging from 1.23 to 91.7 mg/L.
Saiki et al.(1993) measured boron levels in aquatic food chains in the Lower San Joaquin River (California, United States) and its tributaries. They observed the highest concentrations of boron in detritus and filamentous algae, and lower concentrations in invertebrates and fish. Saiki et al did not calculate accumulation factors and many of their analytical values were below their detection limits. Using only measurements above detection limits, the average BCF for filamentous algae was 137 L/kg (standard deviation of 224). Bioaccumulation factors (BAF) for plankton and invertebrates were less than 20 L/kg; BAF for fish were < 5 L/kg. (Since these are field data, the body concentrations reflect uptake via both food and from water; BCF values theoretically reflect uptake from water only.) If measurements below detection limits are taken to be equal to the detection limit value, the estimated values are: algae-BCF ca.190 L/kg, plankton and invertebrates-BAF <20 L/kg, and fish-BAF ca. 8 L/kg.
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.