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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

The ready biodegradation of cumene hydroperoxide was investigated in a study conducted according toOECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test)over a period of 28 days and using domestic activated sludge as inoculum source. The biodegradation rate was determined by measurement of CO2 evolution. Inoculum blank, procedural/functional control with the reference substance sodium benzoate, and toxicity control using ca. 11 mg TOC/L test substance and 20 mg TOC/L reference compound were performed.The test item proved to be not readily biodegradable under the test conditions employed (3% biodegradation after 28 d). The functional control reached the pass level >60% biodegradation after 14 d. In the toxicity control containing both test and reference item 40% biodegradation based on ThCO2 occurred within 13 d thus indicating that the test substance was not inhibitory at the concentration tested. The ready biodegradability of cumene hydroxide was also investigated in a further study conducted according toOECD Guideline 301 B (Ready Biodegradability: CO2 Evolution Test). Over a period of 28 days and using activated sludge as inoculum source, the biodegradation rate was determined by measurement of CO2 evolution. Inoculum blank, procedural/functional control with the reference substance sodium benzoate, and toxicity control using 10 and 20 mg/L test item and 2 mg/L reference compound were performed.The test item proved to be not biodegradable under the test conditions employed(7% and 2% biodegradation after 28 d at test substance concentration of 10 and 20 mg/L).The functional control reached the pass level >60% after 14 d. In the toxicity control containing both test and reference item 45% biodegradation based on ThCO2 occurred within 5 d thus indicating that the test item was not inhibitory at the concentration tested.