Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Stability :

Phototransformation in Air :

The atmospheric oxidation half life of phthalylsulfathiazole was estimated using level III multimedia model it indicates that phthalylsulfathiazole is not persistent in air medium as the half life period of phthalylsulfathiazole in air is only 0.15 days. From this it is concluded that phthalylsulfathiazole is rapidly phototransformed in air.

Media

Half life

(days)

Percent in Medium

Air

0.15

0%

   

Hydrolysis :

The Hydrolysis rate constant of phthalylsulfathiazole was estimated to be 0.0000000000342882 cm3/molecule-sec. at half life of 3.743 Hrs.The estimated half life of the substance indicates that the substance is negligibly hydrolysable.

Phototransformation in Water :

No experimental data available. As this study is not a standard information requirement in REACH and there is no indication from the CSA on the need to investigate further the fate and behaviour of the substance (Annex X requirement), no further testing is considered necessary.

Phototransformation in Soil :

No experimental data available. As this study is not a standard information requirement in REACH and there is no indication from the CSA on the need to investigate further the fate and behaviour of the substance (Annex X requirement), no further testing is considered necessary.