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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 500-040-3 | CAS number: 25686-28-6
Dissociation constant
Administrative data
Link to relevant study record(s)
- Endpoint:
- dissociation constant
- Type of information:
- other: Estimated by calculation
- Adequacy of study:
- key study
- Study period:
- Start date of the experimental work: 12 June 2009 and Completion date of the experimental work: 02 July 2009.
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Conducted at a GLP accredited laboratory
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Experimental techniques are available for the determination of dissociation constant of a substance. These tests are described in OECD 112. They are Titration method, Spectrophotometric method and Conductometric method. The described tests cannot to be carried out because the sample, reacts with water, hence an estimation based on a calculation has been carried out.
- GLP compliance:
- no
- Dissociating properties:
- no
- Conclusions:
- From the study of the chemical structure of test substance, it is not possible to obtain appropriate parent compound for which acid dissociation constant is available in literature. Also the compound does not contain functional groups which are able to undergo dissociation. As a result, dissociation constant estimation is not feasible.
Reference
Experimental techniques are available for the determination of dissociation constant of a substance. These tests are described in OECD 112. They are Titration method, Spectrophotometric method and Conductometric method. The described tests cannot to be carried out because the sample, reacts with water, hence an estimation based on a calculation has been carried out.
From the study of the chemical structure of test substance, it is not possible to obtain appropriate parent compound for which acid dissociation constant is available in literature. Also the compound does not contain functional groups which are able to undergo dissociation. As a result, dissociation constant estimation is not feasible.
Description of key information
From the study of the chemical structure of test substance, it is not possible to obtain appropriate parent compound for which acid dissociation constant is available in literature. Also the compound does not contain functional groups which are able to undergo dissociation. As a result, dissociation constant estimation is not feasible.
Key value for chemical safety assessment
Additional information
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.
