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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Green liquor sludge in particulate form is immobile in soil and sediment. This applies also to unburnt carbon which may comprise ca. 10% wt of the substance. GLS is rich in calcium and carbonate, unburned coal and sodium. The constituents are practically taken involatile. Calcium carbonate is poorly soluble in water but dissolves by the action of acids. Calcium carbonate reacts with water saturated with carbon dioxide and forms soluble calcium hydrogen carbonate(Ca(HCO3)2 “bicarbonate”. CaCO3(s) + CO2+ H2O <-> Ca(HCO3)2

Adsorption/desorption behavior of dissolved constituents is governed mainly by inorganic soil and sediment materials. Each constituent behave by a characteristic way and depending highly on local environmental conditions. Generally the adsorption of the ionic constituents to organic materials is weak and adsorption to minerals is stronger and more pronounced. Adsorption/desorption of calcium and sodium and consequently their mobility and bioavailability is much related to the soil cation exchange capacity (CEC). Adsorption of anions to soil and sediments is generally not strong and therefore these constituents are quite mobile in soil and poorly adsorptive to sediments.