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Environmental fate & pathways

Phototransformation in air

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Description of key information

The substance 2-aminobenzenesulphonic acid is not persistent in air medium as the half life period of 2-aminobenzenesulphonic acid in air is only 0.071 days which does not exceeds the criteria of 2 days.

Key value for chemical safety assessment

Half-life in air:
0.71 d
Degradation rate constant with OH radicals:
0 cm³ molecule-1 s-1

Additional information

The atmospheric oxidation half-life of 2-aminobenzenesulphonic acid was estimated using the level III multimedia model. It was estimated that the substance is not persistent in air medium as the half life period of 2-aminobenzenesulphonic acid in air is only 0.071 days. This indicates that 2-aminobenzenesulphonic acid is rapidly photo-transformed in air.  

OVERALL OH Rate Constant = 0.000000000023 cm3/molecule-sec at 25 degC.