Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 931-584-3 | CAS number: 66071-92-9
Oxidising properties
Administrative data
Link to relevant study record(s)
Description of key information
- Black liquor is considered to be incapable of reacting exothermically with combustible material and classification is not required.
- Data waiving is based on the rules in Column 2 of Annex VII (7.13) in the REACH regulation and CSA guidance, stating that no test is required if the substance cannot react exothermically with combustible materials e.g. according to its chemical structure.
Key value for chemical safety assessment
- Oxidising properties:
- no
Additional information
Data waiving is based on the rules in Column 2 of Annex VII (7.13) in the REACH regulation and CSA guidance, stating that no test is required if the substance cannot react exothermically with combustible materials e.g. according to its chemical structure.
Black liquor is a UVCB substance consisting of variable organic and inorganic compounds from cellulosic raw material and process chemicals. The main organic components are cellulosic lignin, polysaccharides and aliphatic carboxylic acids, which are not likely to contain oxidising structures. The main inorganic components are sodium hydroxide, sodium carbonate, sodium hydrogen sulfide and sodium sulfate, which as well do not contain oxidising structures.
Therefore no testing of oxidising properties of Black liquor is considered necessary.
Justification for classification or non-classification
Black liquor is considered to be incapable of reacting exothermically with combustible material and therefore classification is not required.
Data waiving is based on the rules in Column 2 of Annex VII (7.13) in the REACH regulation and CSA guidance, stating that no test is required if the substance cannot react exothermically with combustible materials e.g. according to its chemical structure.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
