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Physical & Chemical properties

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No data on Acid Yellow 049 sodium salt was available.

Available data on Acid Yellow 049 lithium salt was considered as representative and suitable to be used in a read-across perspective. Details on the read across are reported in section 13.

Acid Yellow 049 sodium salt is a yellow powder.

Based on read across data, the relative density is ca. 1.5 at 20 °C and the mass median diameter is ca. 38 µm. It is very soluble in water and it has a slightly negative log Kow.

In a DSC analysis between 25 and 450 °C, no melting or boiling point is recorded. Decomposition is observed between 319 and 388 °C. Vapour pressure can be considered as negligible; surface tension is not a desirable property of the substance.

It is non flammable, non oxidising, non explosive and has no spontaneous ignition property.