Registration Dossier
Registration Dossier
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EC number: 247-891-4 | CAS number: 26658-19-5
Dissociation constant
Administrative data
Link to relevant study record(s)
Description of key information
List of species and pKa value regarded at 20 °C:
pka = 13.23 for C16 FA component
pKa = 12.42 for C18 FA component
Key value for chemical safety assessment
Additional information
The dissociation constant of the substance sorbitan stearate (CAS 1338-41-6) was determined by QSAR calculation with SPARC (v4.5). Both components (C16 and C18 FA component) have
three dissociable hydroxyl group, but there is no dissociation in the environmental relevant pH range between 5 and 9.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.
