Registration Dossier
Registration Dossier
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EC number: 419-330-5 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Additional information
As FAT 40543/A is highly insoluble in water as shown in the test on water solubility (result 0.38 mg/L). Thus, conducting the hydrolysis study is technically not feasible and is waived in line with criteria in Annex VIII, column 2 REACH.
FAT 40543/A was tested for ready and inherent biodegradability.
In the ready biodegradability experiment FAT 40543/A only achieved 2% biodegradation after 28 days. whereas the reference substance reached a biodegradation rate of 90%.
The inherent biodegradability experiment, FAT 40543/A showed no biodegradation (0%) within 28 days. The reference substance (sodium benzoate) achieved 89% biodegradation within 28 days.
In a separate experiment the COD (Chemical Oxygen Demand) of FAT 40543/A was determined being 1.25 g O2/g and is thus in good agreement with the ThOD (Theoretical Oxygen Demand) of 1.33 g O2/g. Considering the BOD5 of 5 mg O2/g found in the ready biodegradability test (Manometric respirometry test) the BOD5/COD ratio is 0.4% and thus the substance is considered non-biodegradable.
In conclusion it can be stated that FAT 40543/A is non-biodegradable under aerobic conditions.
Regarding the adsorption coefficient, Koc of FAT 40'543/A is greater than 2400. This means that FAT 40'543/A is immobile in soils. An estimation was performed using a water solubility of smaller than 0.38 mg/l (pH 7, 20 °C) and an octanol/water partition coefficient of 3.69 (22 °C). The estimation was performed using regression equations (Lyman, Reehl, Rosenblatt: Handbook of Chemical Property Estimation Methods, 1990) relating the Koc with the above-mentioned properties.
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