Registration Dossier
Registration Dossier
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EC number: 231-157-5 | CAS number: 7440-47-3
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
All results obtained in an OECD 29 T/D test demonstrate the highly insolubility of chromium at different pH and for short (1 and 7-Days, based on the dissolved concentration which as measured below the limit of detection.
The insolubility of metallic chromium and the ubiquitous presence in the environment makes its ecotoxicity very unlikely and also the testing of the environmental degradation and ecotoxicity mainly scientifically unjustified. Due to its highly insolubility, metallic chromium is not classifiable. The toxicity parameters and PNEC values of soluble Cr(3 +) are orders of magnitude higher than concentrations obtained in the solubility tests of metallic chromium. They are presented in the documentation only for comparison.
For information and for comparison, the PNECs for trivalent chromium have been determined in the ICDA (2010) environmental report. The report includes detailed description of the rationale behind the derivation PNECs. According the considerations exposed in this section, short-term toxicity on invertebrates is not expected.
Key value for chemical safety assessment
Additional information
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