Registration Dossier
Registration Dossier
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EC number: 923-511-9 | CAS number: -
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.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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