Registration Dossier
Registration Dossier
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EC number: 205-286-2 | CAS number: 137-26-8
Endpoint summary
Administrative data
Description of key information
Additional information
Tetramethylthiuram disulfide (CAS No. 137-26-8) is not a readily biodegradable substance and shows potential for adsorption to solid particles. This substance is expected to be rapidly degraded in air (DT50 = 21.3 minutes), water (DT50 < 10 hours) and soil (DT50 = 5.4 hours) by means of photolysis. Furthermore, once released into the water, hydrolysis plays an important role in the degradation of tetramethylthiuram disulfide, especially under neutral and alkaline conditions (DT50 = 3.5 days and 6.9 hours, respectively). Based on the estimated Henry’s Law constant (0.033 Pa m^3/mol), this substance will not evaporate significantly from the water surface. In view of the estimated octanol-water partition coefficient (1.8 -2.1), the bioaccumulation potential of this substance in biota is assumed to be low. Rapid elimination of the parent compound in water, sediment and soil systems has been reported, with DT50 values below 1 day in water and sediment at 12°C and 9.98 – 98.75 d at 12°C in soil. The mineralization was > 50% of the applied radioactivity (AR) after 62 days in water (only in the sample, in which a catalytic converter was used), > 50% (AR) before 120 days in soil and between 24.42 and 37.67% (AR) after 60 days in sediment.
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