Registration Dossier

Environmental fate & pathways

Adsorption / desorption

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Administrative data

Link to relevant study record(s)

Description of key information

Key data is available for 2,2,3-trimethylbutane. This data is supported by data available for Isoheptane that is being read across to using the category approach explained in the category justification document attached to Section 13 of the dossier.

No studies on adsorption are available for substances belonging to the category C7-C9 aliphatic hydrocarbon solvents. However, category members are not expected to sorb significantly to organic matter in soil, sediment, and wastewater solids based on calculated log Koc values, with 2,2,3-trimethylbutane

having a log koc of 3.01 (Petrorisk) and with Isoheptane having a log Koc of 2.30 (KOCWIN v2.00, a sub-routine of the computer program EPI Suite™, 2000).

Key value for chemical safety assessment

Additional information