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Environmental fate & pathways

Endpoint summary

Administrative data

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Additional information

TBBS hydrolyses quickly in water. According to REACH Guidance Document R.7c (2014, p. 26) it can be assumed that the rate of hydrolysis is greater than that for uptake by the exposed organisms. In these cases, it may sometimes be appropriate to perform a BCF test on the hydrolysis products, if identified, instead of the parent substance. In case of TBBS MBT and tert-butylamine are identified hydrolysis products for which bioaccumulation tests are available. The experimentally determined BCF of MBT is lower than 8 and the one of tert-butylamine lower than 9; and hence MBT and tert-butylamine and therefore also TBBS are considered to have very low potential for bioaccumulation (MITI, 2000 and 2003).