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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to microorganisms

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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

The toxicity of ´2 -Propyn-1 -ol, compound with methyloxirane´ on microorganisms was tested in a guideline study according to DIN 38412, part 8 (Pseudomonas Zellvermehrungshemm-Test) with Pseudomonas putida [BASF AG, 1990]. After 17 hours of incubation the EC50 was above 10000 mg/L based on nominal concentrations (EC10 = 6500 mg/L). No inhibiting effect on the growth of the bacteria was measured.