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EC number: 630-337-4 | CAS number: 39211-00-2
- 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

Endpoint summary
Administrative data
Description of key information
Additional information
Cesium tetrafluoroaluminate (CsAlF4) is a white powder with a melting range between approx. 420-480°C and a decomposition temperature of > 550°C. Its density is 3644 kg/m3 and its water solubility is 13 g/L at pH6 at room temperature. Determination of the boiling point and vapour pressure of CsAlF4 does not need to be conducted as the melting point is well above 300°C. Testing on partition coefficient and flash point do not need to be performed as the substance is inorganic. Surface tension does not need to be determined as it is not expected based on the substance structure nor a desired substance property. The explosiveness does not need to be tested as CsAlF4 does not contain chemical groups associated with explosive properties. The oxidising properties do not need to be tested as the substance is expected to be incapable of reacting exothermically with combustible materials based on its chemical structure.
Testing of the following endpoints is considered scientifically unjustified according to section 1 of REACH Annex XI. Flammability and autoflammability were not tested as both metal ions (cesium and aluminum) are already present in the highest possible oxidation state and fluorine is a more electronegative element than oxygen. The interaction with oxygen is therefore not possible and the substance is essentially non-flammable. Furthermore, based on the experience in handling the substance, the substance does not exhibit water reactivity or pyrophoric properties.
Particle size distribution finally, was determined by laser diffraction; results were as follows: D10 = 14.4 µm; D50 = 33.5 µm; D90 = 50.5 µm.
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