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Environmental fate & pathways

Phototransformation in air

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Description of key information

The atmospheric oxidation half life of α,α-bis[4-(dimethylamino)phenyl]-4-(phenylamino)naphthalene-1-methanol (Solvent Blue 4) (containing less than 0.1% Michler's Ketone) was estimated using level III multimedia model it indicates that α,α-bis[4-(dimethylamino)phenyl]-4-(phenylamino)naphthalene-1-methanol is not persistent in air medium as the half life period of α,α-bis[4-(dimethylamino)phenyl]-4-(phenylamino)naphthalene-1-methanol in air is only 0.04 days. From this it is concluded that α,α-bis[4-(dimethylamino)phenyl]-4-(phenylamino)naphthalene-1-methanol is rapidly phototransformed in air.

Key value for chemical safety assessment

Half-life in air:
0.04 d

Additional information

The atmospheric oxidation half life of α,α-bis[4-(dimethylamino)phenyl]-4-(phenylamino)naphthalene-1-methanol (containing less than 0.1% Michler's Ketone) was estimated using level III multimedia model it indicates that α,α-bis[4-(dimethylamino)phenyl]-4-(phenylamino)naphthalene-1-methanol is not persistent in air medium as the half life period of α,α-bis[4-(dimethylamino)phenyl]-4-(phenylamino)naphthalene-1-methanol in air is only 0.04 days. From this it is concluded that α,α-bis[4-(dimethylamino)phenyl]-4-(phenylamino)naphthalene-1-methanol is rapidly phototransformed in air.