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Environmental fate & pathways

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PTSI is extremely water-reactive and therefore unstable in the environment. It will react immediately with moisture to form p-toluenesulfonyl amide (PTSA) and carbon dioxide. The decomposition product PTSA was found to be readily biodegradable. Based on this, a hydrolysis test and further tests on biodegradation in surface water, sediment and soil were not carried out. As PTSA has a low log Kow (0.6), it is expected to have a low potential for bioaccumulation as well as adsorption and testing for these endpoints was also not considered to be necessary.