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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 919-274-6 | CAS number: -
pH
Administrative data
- Endpoint:
- pH
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- other:
Cross-reference
- Reason / purpose for cross-reference:
- reference to other study
Data source
Materials and methods
Results and discussion
Applicant's summary and conclusion
- Conclusions:
- This test material does not contain a hydrolyzable function groups, apart from the sulfonic acid moiety which could be neutralized at pH>2..
- Executive summary:
Hydrolysis as a Function of pH
Justification For data Waiving (ECHA TGD ref 9.2.2.1)
From the compositional description and the structural formula given, and the fact that the substance 272-473-3 (EINECS) is highly insoluble in water, it can be concluded that hydrolysis of the principal active ingredient, at any pH, will not be evident (will not be degraded by hydrolytic means in either strong aqueous acid or strong base). However, this substance is also comprised of a sulfonic acid functional group, which will significantly dissociate in the presence of aqueous media if that media exhibits a pH>2, wherein the sulfonic acid moiety is essentially neutralized. Apart from this consideration, there are no functional groups or other structural alerts present in the active organic ingredient that would indicate that this substance would otherwise decompose by hydrolysis and thus should not be classified as dangerous according to the criteria for hydrolysis as a function of pH. Furthermore, this is confirmed by long term handling experience.
Dr. Thomas F. Buckley III
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.
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