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Environmental fate & pathways

Adsorption / desorption

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Description of key information

C9-14 Aliphatics (≤ 2% aromatic) are hydrocarbon UVCBs. Standard tests for this endpoint are intended for single substances and are not appropriate for these complex substances. However, this endpoint is characterized using quantitative structure property relationships for representative hydrocarbon structures that comprise the hydrocarbon blocks used to assess the environmental risk of these substances with the PETRORISK model (see Product Library  in PETRORISK spreadsheet attached to Section 13 of the dossier).

Koc of decane has been estimated by calculation in the Concawe Library of Petrorisk, using SPARC v4.2 program (May 2008). The calculated value is 1.45 x10^4 L/kg, using a log Kow of 5.86.

Koc of undecane has been estimated by calculation in the Concawe Library of Petrorisk, using SPARC v4.2 program (may 2008). The calculated value is 5.62 x10^4 L/kg, using a log Kow of 6.42.

Koc of dodecane has been estimated by calculation in the Concawe Library of Petrorisk, using SPARC v4.2 program (May 2008). The calculated value is 1.10 x10^5 L/kg, using a log Kow of 6.98.

Koc of tretradecane has been estimated by calculation in the Concawe Library of Petrorisk, using SPARC v4.2 program (May 2008). The calculated value is 7.59 x10^5 L/kg, using a log Kow of 8.11.

Key value for chemical safety assessment

Additional information

C9-14 Aliphatics (≤ 2% aromatic) are hydrocarbon UVCBs. Standard tests for this endpoint are intended for single substances and are not appropriate for these complex substances. However, this endpoint is characterized using quantitative structure property relationships for representative hydrocarbon structures that comprise the hydrocarbon blocks used to assess the environmental risk of these substances with the PETRORISK model (see Product Library  in PETRORISK spreadsheet attached to Section 13 of the dossier).