Registration Dossier
Registration Dossier
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EC number: 220-168-0 | CAS number: 2650-18-2
Endpoint summary
Administrative data
Description of key information
Additional information
The substance is an organic compound and at 20 °C and 1013 hPa it is a blue powder. Due to its high hygroscopic nature it appears as a blue amorphous paste.
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 shows decomposition between 259 °C and 311 °C.
The relative density value found using a pycnometer method is 1.347 at 20 °C.
Based on the findings during the flask method the water solubility of the test substance, is higher than 1000 g/L. pH of test substance solution (50 g / 50 mL = 1000 g/L) is 6.30, t = 24.3 °C.
The log Pow value is -3.0. These results were obtained at 24 °C and at pH 5.8.
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 contains chemical groups associated with explosive properties but the exothermic decomposition energy is less than 500 J/g and the onset of exothermic decomposition is below 500 °C. As a consequence, the substance is considered to be non-explosive and incapable of reacting exothermically with combustible materials, also on the basis of its thermal properties.
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