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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 272-745-1 | CAS number: 68910-55-4
Dissociation constant
Administrative data
Link to relevant study record(s)
Description of key information
This study is waived because it is scientifically unjustified.
Key value for chemical safety assessment
Additional information
The substance contains carboxylic, phenolic and alcoholic functionality although a number of carboxylic groups are likely to be blocked as amides after reaction with the polyethylenepolyamine. The very poor water solubility of the substance means that it would not be possible to measure the pKa range for the substance. Supporting information stating the pKa range for humic acids with some acidic groups blocked indicates that the pKa range of the humic portion of the substance could lie between 5.2 and 6.6. No information is available for the other components in the substance.
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.
