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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

FAT 40574/B is regarded as little mobile in all three soils.

Additional information

The adsorption and desorption behaviour of FAT 40574/B was determined in a screening test conducted according to OECD test guideline 106 by the batch equilibrium method using three soils: Speyer (loamy sand) Sisseln (sandy loam) and Les Barges (silt loam). The soils chosen represented a range of organic carbon content, pH, cation exchange capacity and clay content. A preliminary test was performed to establish a suitable analytical procedure. CaCI2 solutions were analysed for parent by High Performance Liquid Chromatography (HPLC). The substance could be analysed in a concentration range of 0.6 mg/l to 8.9 mg/l. The air-dried soils were conditioned with 0.01 mol CaCI2 per litre solution before the test. For the screening test, 5 g dried soil equivalents were treated with 25 ml of a 0.01 mol CaCI2 per litre solution containing the test item. This adsorption was performed in duplicate at a concentration of 3.7 mg FAT 40574/B per litre. The amount of FAT 40574/B adsorbed to the soils was 80.1 % for soil Speyer, 60.6 %  for soil Sisseln and 82.7 % for soil Les Barges. After the adsorption, two desorption steps were performed. Therefore, 25 ml of untreated 0.01 mol CaCI2 per litre solution was added to the soil sample and the mixture was shaken for 16 hours. From soils Speyer, Sissein and Les Barges 12.5 %, 30.6 % and 11.1 % of the adsorbed FAT 40574/B was desorbed, respectively. Corresponding in the three soils 87.5 %, 69.4 % and 88.9 % of the adsorbed test item remained adsorbed. The adsorption coefficient was 20.4 ml/g, 7.7 ml/g and 24.0 ml/g calculated for soils Speyer, Sisseln and Les Barges and the corresponding Koc values were 891 ml/g, 491 ml/g and 631 ml/g, respectively. FAT 40574/B can therefore be regarded as little mobile in all three soils.