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Physical & Chemical properties

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The substance is an organic compound and at 20 °C and 1013 hPa it is a yellow powder. Using the laser light scattering method, the mass median diameter value for its particles was found to be 47.338 µm.

The evaluation of thermal properties was based on a DSC analysis: a melting point and a boiling point were not detected; the DSC heating curve does not show any thermal event up to 420 °C.

The relative density value found using a pycnometer method was 1.580 at 20 °C.

Since it was not possible to separate solid particles from the saturated solution of the substance after 2 hours of centrifugation at 15000 RPM, the water solubility was established by the preliminary test in the range of 200-500 g/L.

The log Pow value is -3.04. These results were obtained at 24 °C and at pH 4.35.

No reactions with water or emission of flammable gases have ever been noted. Furthermore, for soluble dyes a reaction with water is not a desirable property from the use point of view. Therefore, the substance is not expected as a substance that in contact with water may react emitting flammable gases.

The substance is also an air-stable compound at room temperature over a prolonged period of time (days), without noticeable or undesirable reactions: a potential for spontaneous ignition is not expected. In addition, it is found to be non flammable during the reference test.

The substance does not contain chemical groups associated with explosive properties and is considered to be non explosive and incapable of reacting exothermically with combustible materials, also on the basis of its thermal properties.