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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

The adsorption/desorption test does not need to be conducted as based on the physico-chemical properties, the substance can be expected to have a low potential for adsorption (log Kow is 2.3). Therefore, the organic carbon-water partitioning coefficient (Koc) was calculated from the log Kow using the equation from EUSES (non-hydrophobics QSAR, because the log Kow < 3). The calculated Koc value is 164 L/kg (log Koc = 2.21). This Koc-value indicates that the substance has a low potential to adsorb to sediment/soil.

The Henry's law constant is calculated using the equation from EUSES. Using a molecular weight of 178.23 g/mol, and the experimentally determined vapour pressure of 0.30 Pa (at 24 °C) and water solubility of 1085.7 mg/L (at 24 °C) the Henry's law constant at environmental temperature (12 °C) is calculated to be 0.0249 Pa·m³/mol.

Based on Level III environmental distribution modelling using EPISUITE (assuming equal and continuous releases to air, water and soil) using the CAS number 5462-06-6 and the measured physicochemical parameters (water solubility = 1085.7 mg/L, vapour pressure = 0.0024 mg Hg and log Kow = 2.3) as input, it is estimated that the majority of the substance released to the environment will partition mainly into soil (68.1%) and water (31.4%) with minor amounts to air (0.392%) and sediment (0.116%).

The SimpleTreat model, which is incorporated in EUSES, simulates the distribution of the substance in a Sewage Treatment Plant (STP). Model calculations show that 86% of the substance will be degraded and that 12.5%, 1.52% and 0.00992% will partition to water, sewage sludge and air, respectively.

Additional information