Registration Dossier
Registration Dossier
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EC number: 212-783-8 | CAS number: 868-85-9
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
EC50 nominal (3 h) > 10000 mg/L for activated sludge (ISO Norm 8192)
Key value for chemical safety assessment
Additional information
Regarding the toxicity of dimethyl phosphonate to microorganisms an oxygen consumption test in accordance with ISO Norm 8192 on activated sludge was performed (Bayer AG, 1992). After an exposure period of 3 hours, a nominal EC50 of > 10000 mg/L was determined. At a test substance concentration of 100 mg/L respiration rate was not inhibited, meanwhile at higher concentrations of 1000 and 10000 mg/L respiration was inhibited by 7.5% respectively.
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