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Environmental fate & pathways

Henry's Law constant

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The Henry's law constant (HLC) of CBS is lower than 3.74*10-4 hPa m3/mol at ambient temperature (e. g. 21 -25°C), which is directly estimated as the ratio between the vapour pressure and water solubility (Currenta, 2010). Therefore CBS is essentially non-volatile. Most of the described metabolites of CBS, such as MBT, MBTS, BTon, BT, and MeSBT are are also non-volative, but only MeBT has an estimated HLC of 2.75 Pa m3/mol, which is higher than 1 Pa m3/mol and hence considered as slightly volatile.

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