Registration Dossier
Registration Dossier
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EC number: 279-919-6 | CAS number: 82205-20-7
Hydrolysis
Administrative data
Link to relevant study record(s)
Description of key information
Basic Red 18:1 Acetate is only stable in presence of significant concentrations of free acetic acid; it cannot be isolated as such. The test substance is an aqueous solution in 15-25 % acetic acid. Basic Red 18:1 Acetate has a very high solubility in acetic acid solution.
The substance is stable at high temperatures (dyeing takes place at 96 to 120 °C at pH 3 to 4.5) and acidic and neutral pH as can be seen in the UV/Vis Spectrum at different pH values. At basic pH >10 the chromophore precipitates, from which Basic Red 18:1 Acetate was formed by dissolving in acetic acid.
It is hence considered scientifically unjustified to do an additional study for abiotic degradation of this substance.
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.
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