Registration Dossier
Registration Dossier
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EC number: 224-929-8 | CAS number: 4559-86-8
Endpoint summary
Administrative data
Description of key information
Additional information
The photodegradation of the test substance in air by reaction with OH radicals was calculated via EPIWIN v4.00, AOPWIN v1.92. Based on a reaction rate constant of 31.76 x 10E-12 cm³/molecule x s (at 25°C) and a OH radical concentration of 5 x 10E5 radicals/cm³ (24 h d) a half-life t1/2=12.125 h was calculated. According to REACH Regulation (Annex VIII, 9.2.2.1, column II), the study on hydrolysis as a function of pH does not need to be done if the test substance is hardly soluble in water. As could be shown in a study report the performance of the test on hydrolysis was experimentally not possible due to the low water solubility of tetrabutyl urea.
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