Registration Dossier
Registration Dossier
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EC number: 931-584-3 | CAS number: 66071-92-9
Endpoint summary
Administrative data
Description of key information
Additional information
Black liquor is registered as a transported isolated intermediate and is manufactured and consumed under strictly controlled conditions during its whole lifcycle. Black liquor recycles in the pulping process, and no spillages occur in normal process conditions. Hence environmental impacts are expected to be low.
Black liquor was not readily biodegradable according to the ready biodegradation test (OECD 301, EU Method C.4 -B) and according to the literature information of an inherent biodegradation test (OECD 302B). Both studies suggests evidence for primary biodegradability (biodegradation over 20%).
Black liquor consists of organic and inorganic substances extracted from the cellulosic raw materials and of inorganic process chemicals. The organic fraction is mostly of natural origin and is expected to be inherently biodegradable. The main inorganic constituents (mainly sodium salts) are not hazardous to the environment in diluted and/or oxidized form.
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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