Registration Dossier
Registration Dossier
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EC number: 232-164-6 | CAS number: 7789-41-5
Long-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 7.5 mg/L
Additional information
Read across from NaBr to CaBr2 is possible due to the full dissociation of both compounds in water. Na+ and Ca2+ are not toxic in the concentration ranges where Br- is toxic. Therefore only the Br- is responsible for the toxicity effects.
Long term toxicity to Daphnia magna was tested during a reproduction test with sodium bromide. Sodium bromide significantly affected Daphnia magna reproduction both at the release of the first brood and at the end of the test. NOEC and LOEC values determined in both periods were identical (NOEC = 7.5 mg/L, LOEC = 19 mg/L). Growth was not affected by sodium bromide either after release of the first brood or after 21 days of exposure. Test result is equivalent to: NOEC = 5.82 mg(Br-)/L for the bromide ion
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