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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Phototransformation in air

The atmospheric oxidation half-life of 4-aminobenzene-1,3-disulphonic acid was estimated using the level III multimedia model. It was estimated that the substance is persistent in air medium as the half life period of 4-aminobenzene-1,3-disulphonic acid in air is only 3.1 days. This indicates that 4-aminobenzene-1,3-disulphonic acid is not rapidly phototransformed in air.

OVERALL OH Rate Constant =0.0000000000052 cm3/molecule-sec at 25 degrees C


The Hydrolysis rate constant of 4-aminobenzene-1,3-disulphonic acid was estimated to be 0.0000000000052004 (5.2004 E-12) cm3/molecule-sec at a half life of 24.681 hrs. The estimated half life indicates that 4-aminobenzene-1,3-disulphonic acid would be slowly hydrolysable.