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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

A proprietary ASRIT study is available.

Key value for chemical safety assessment

Additional information

Five concentrations of phosphorus trichloride (1000, 1800, 3200, 5600 and 10000 mg/L) were assessed for their effect on activated sludge by measuring the respiration rate and % inhibition according to ISO 1892. The resulting nominal EC50 value was calculated to be 9450 mg/L. Analytical determination of test substance concentration was not practical due to its rapid reaction with water and subsequent degradation