Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

TNS emissions are likely to partition to water and soil. One or more of the components of TNS is expected to have a high to very high mobility to ground water if emitted to soil. TNS as put on the market is an aqueous suspension and the preparation used by consumers is water-based. TNS has three measured pKa at 4.1, 7.0, and 9.5. Assuming the pH of the water-based preparation is 7 or higher, more than 99% of TNS in the water-based preparation will be present as dissociated ions. In such a form, the vapour pressure is essentially zero and volatilization into air is not likely. Furthermore, calculated Henry Law Constants are low to further limit volatilization into air.