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Environmental fate & pathways

Adsorption / desorption

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Description of key information

Koc Values increase with increasing carbon chain length and chlorine content.

Key value for chemical safety assessment

Additional information

Estimated KOCvalues for long-chain chlorinated paraffins from structure

 

Formula

Chlorine Content

(% wt Cl)

KOC(l/kg)

C18H33Cl5

41.6

2.93 x 106

C18H30Cl8

53.6

1.27 x 107

C20H36Cl6

43.6

1.61 x 107

C20H33Cl9

53.9

7.00 x 107

C25H45Cl7

41.9

5.58 x 108

C25H42Cl10

50.9

2.42 x 109

C25H29Cl23

71.3

1 x 1010 a

C30H53Cl9

43.6

1 x 1010 a

C30H49Cl13

53.0

1 x 1010 a

C30H35Cl27

70.8

1 x 1010 a

                                                                                   a= upper limit of estimation method.