Registration Dossier
Registration Dossier
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EC number: 202-679-0 | CAS number: 98-54-4
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
In accordance with column 2 of REACH Annex es XIII and IX, the adsorption / desorption study (required in section 9.3.1 and 9.3.3) do not need to be conducted as the substance and its relevant degradation products decompose rapidly.
This expectation that ptBP decomposes rapidly is supported by the review of the information presented concerning biodegradation which indicates that ptBP is readily biodegradable.
Key value for chemical safety assessment
Additional information
Information regarding adsorption/desorption of ptBP was calculated using the Estimation Programs Interface (EPI) SuiteTM United States Environmental Protection Agency MPBPVP Program (v1.43), which predicted a value of 1286 L/kg from molecular connectivity indices (MDI) and a value of 837.2 L/kg from Log Kow. The high predicted adsorption coefficients indicate that ptBP will have a low mobility in soil.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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