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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 430-380-7 | CAS number: 445409-27-8
Dissociation constant
Administrative data
Link to relevant study record(s)
Description of key information
Study has been waived as scientifically not possible to perform.
Key value for chemical safety assessment
Additional information
According to 7.16 column 2 of Annex IX of the European Union (EU) Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) 1907/2006 regulation, the study does not need to be conducted if it is scientifically not possible to perform the test, for instance if the analytical method is not sensitive enough. Experimental evaluation of the water solubility resulted only in a limit value (actual value <1.25 mg/L, slightly soluble) due to the necessity to employ a visual method. Subsequent computer modeling of individual components, performed to provide definitive solubility data, resulted in a majority of the estimated values being within the “insoluble” classification range (actual values 0.005 to 0.21 mg/L). The titration method was, therefore, considered to be not applicable. The substance is a complex reaction mixture containing ionisable and non-ionisable forms; the non-ionisable forms degrade in water to yield the ionisable forms (DT50 is 10.3 days). It is not possible to accurately quantitate the respective forms using a spectrometric method. Due to the limited water solubility, the conductometric method is not appropriate as it is not possible to accurately measure the conductivity at different dilutions due to the potential formation of emulsions and microemulsions. This endpoint is waived, therefore, on the basis that it is not scientifically feasible to perform the test.
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.
