Registration Dossier
Registration Dossier
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EC number: 237-430-5 | CAS number: 13780-39-7
Endpoint summary
Administrative data
Description of key information
Additional information
Parent compound titanium tetrachloride hydrolyses in water fast via target compound titanium oxychloride, revealing eventually titanium dioxide (rutile), thus read across from titanium dioxide would be proposed. As no results are available for the adsorption/desorption of TiO2, read-across is proposed to Kp values based on available monitoring data for elemental Ti-concentration in water and corresponding sediment or suspended matter (no data are available for soil). These results reflect the water/solid equilibrium conditions for Ti in the environment, regardless the speciation of Ti. The available log Kp data indicate that sediments and soils represent the relevant sink for the analogue materials and the target chemical. The Kd reflects the total titanium concentration ratio in equilibrium for all titanium compounds under environmental conditions, where 12 °C are assumed. In the risk assessment and based on field observed values, the partition coefficients log Kp susp 2.36, and log Kp sed 4.566 (median derived from several literature sources) are used.
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