Registration Dossier

Diss Factsheets

Ecotoxicological information

Toxicity to microorganisms

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

The inhibition of the degradation activity of activated sludge is not anticipated when introduced in appropriate low concentrations.

Key value for chemical safety assessment

Additional information

In a short-term respiration test performed by BASF (1978) the 30-min EC20 for industrial activated sludge was >261 mg/L, corresponding to the highest tested concentration.

The study was conducted without analytical monitoring. However, the stability of MIPA in the test medium is considered to be stable due to the high water solubility (miscible at any ratio; see IUCLID chapter 4.8), the low vapour pressure (63 Pa at 25 °C; see IUCLID chapter 4.6) and the low Henry's law constant (HLC: 4.95E-5 Pa*m3/mol; calculated; HENRYWIN v3.20, EPISuite v4.11) of the substance.