Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information


RAV 7AT (EC 205 -528 -7) is used as read-across approach and was investigated regarding abiotic hydrolysis as a function of pH according to OECD guideline 111 (Mullee, 2005). A nominal concentration of 0.05 g/L of the test substance was used. The test was performed at different temperatures and the following sterile buffer solutions: pH 4 (phthalate buffer), pH 7 (phosphate buffer), and pH 9 (borate buffer). HPLC with MS detection was used to analyze the substance at the beginning and the end of the test. An increase of the hydrolysis rate will occur with increasing pH values. The following half-lives were obtained at 25 °C: t1/2 (pH 4) > 1 year, t 1/2 (pH 7) = 280 days, and t1/2 (pH 9) = 68.4 hours. For justification of this read-across approach, please refer to the general discussion of environmental fate and pathways.

Phototransformation in air, water and soil

No information concerning phototransformation in any environmental compartment is available. No experimental investigation will be triggered for the test substance, since these endpoints are not mandatory for a registration under REACH Regulation (EC) 1907/2006 for a tonnage band of 100 - 1000 tons/year.