Registration Dossier
Registration Dossier
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EC number: 285-561-1 | CAS number: 85117-09-5 Mixtures of chemical substances produced by burning (below 1200°C) natural variants of limestone or chalk containing from 10 to 20%, or more, of clayey or siliceous materials which are predominantly SiO2, Al2O3 and iron oxide. Consist primarily of 2CaOsb.2, Ca(OH)2, CaO and 2CaOsb.2O3. 3CaO.2SiO2, 4CaOsb.2O3. Fe2O3, 2CaOsb.2O3sb.2, CaCO3 and SiO2 may also be included.
Endpoint summary
Administrative data
Description of key information
Additional information
Bioaccumulation is not relevant for lime (chemical) hydraulic. In the aquatic environment and in soil, exposure to lime (chemical) hydraulic actually comes down to exposure to calcium and hydroxyl ions. There will be no intake of lime (chemical) hydraulic as such from water or soil, nor will lime (chemical) hydraulic prevail under its original form in the organisms. Moreover, both the intake of the essential element calcium and the internal pH (hydroxyl ions) of an organism are actively regulated (homeostasis).
Similarly, calcium carbonate dissociates into the calcium Ca2+and carbonate CO32-ions at environmental pH. These are essential to all living organisms (flora and fauna) and their intracellular and extra-cellular concentrations are actively regulated. Bioaccumulation is thus not expected or relevant.
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