Registration Dossier
Registration Dossier
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EC number: 233-971-6 | CAS number: 10476-85-4
Endpoint summary
Administrative data
Description of key information
Additional information
Read-across statement:
The speciation and chemistry of strontium is rather simple. As a reactive electropositive metal Sr is easily oxidized to the stable and colourlessSr2+ion in most of its compounds, the chemical behaviour resembling that of Ca and/or Ba (Wennig and Kirsch, 1988). In the environment, the element only occurs in one valence state (Sr2+), does not form strong organic or inorganic complexes and is commonly present in solution asSr2+(Lollar, 2005).Consequently, the transport, fate, and toxicity of strontium in the environment are largely controlled by solubility of different Sr-salts (SrCO3,Sr(NO3)2,SrSO4,Sr(OH)2…)
The derivation of environmental fate data like adsorption/desorption coefficients and bioconcentration/bioaccumulation factors is based on measured Sr-levels, and reflect the properties of the dissolved strontium cation. The latter form is the only form under which dissolved strontium originating from a simple inorganic Sr-compound will occur. Therefore the reported elemental-based environmental fate data in this section of the dossier are considered relevant for the behaviour of strontium that is released into the environment from strontium chloride.
Regional PECs selected for exposure scenarios:
Compartment Regional PEC
Aquatic (freshwater) 480 μg Sr/L
Sediment (freshwater) 20.0 mg Sr/kg dry wt
Soil 76.0 mg Sr/kg dry wt
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