Registration Dossier
Registration Dossier
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EC number: 235-546-0 | CAS number: 12270-13-2
Endpoint summary
Administrative data
Description of key information
Based on the experience with other salt forms the pure Basic Blue 41 Methyl sulfate is expected to be a blue powder with weak odour. The substance itself is only marketed in liquid form containing significant concentrations of free acetic acid as stabiliser.
Information requirements on physico-chemical endpoints on the theoretical solid Basic Blue 41 Methyl sulfate are covered by read-across form the chloride variant of the substance:
Basic Blue 41 Chloride starts melting at 90°C, followed by decomposition. It is completely molten and discoloured to black at 123 °C (capillary method). A boiling point can thus not be determined. The relative density of the substance is 1.35. The vapour pressure is negligible (calculated value at 20 °C: 1.3 x 10-6Pa). The water solubility was determined to be 46 g/L, the log Kow is -1.6. The substance is considered surface active. The surface tension of the aqueous solution of the substance (1 g/L) at 20 °C had a mean value of 52.7 mN/m.
The substance is not classified for flammability and explosiveness. In the Grewer-Oven (air stream) the test substance showed an exothermal reaction beginning at 110 °C. However, as it has a melting point below 160 °C and is in addition completely molten up to this temperature, the test substance should not be considered for classification as self-heating substance.
Additional information
This information is used in a read-across approach in the assessment of the target substance.
For justification of read-across please refer to the attached read-across report (see IUCLID section 13).
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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