Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Additional information

The screening of adsorption potential based on the octanol-water partition coefficient (log Kow 1.31; OECD 107) is not indicating this substance to have adsorption potential as the log Kow is less than 3. However, a substance having a low octanol-water partition coefficient does not necessarily always have a low adsorption potential. As this substance is considered to be surface active (surface tension 31.91 mN/m; OECD 115) and exists in ionized form in the pH range of 5.5-7.5 (pKa 11 and 11.6; estimated using Perrin calculation method) a measured adsorption coefficient was determined.

Adsorption coefficient of the test substance was determined as per OECD guidelines No. 121 in accordance with GLP. The HPLC method using soil-adsorption -reference data was applied. As the testing of the non-ionized form at pH above 12.6 (> 90% non-ionized) was not feasible, adsorption coefficient was measured only at neutral pH. Based on the adsorption coefficient of 427 000 L/kg, this substance is considered as having a strong potential for adsorption to soil and solid particles.

The Henry’s law constant of 0.00278 Pa m3/mol calculated from molecular weight, vapour pressure and water solubility indicates low volatility of the substance from water compartment.

The MacKay fugacity III level calculations using LEV3EPI model in EPISUITE™ (USEPA 2011) also indicated that, if released simultaneously to air, soil and water, Clearlink 1000 will be distributed mainly to soil (60 %) and sediment (28 %). If released to water, it will be distributed mainly to sediment (70 %). If released to soil, it will adsorb into soil (distribution 100 %) and evaporation to air or mobility to water is negligible.