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EC number: 279-093-7
CAS number: 79135-92-5
The substance is a green solid
powder at 20 °C and 1013 hPa.
The substance has a median particle
size of D50 = 472 µm, determined using laser diffraction measurement
The evaluation of thermal properties
was based on a DSC analysis (0-520 °C): as the substance decomposes in
the temperature range of 246.03 – 284.44 °C (onset = 253.76 °C), melting
point and a boiling point were not detected.
A relative density of 1.6201 at 20.0
°C was determined using the pycnometer method.
The substance is soluble in water (5.61-17.43
g/l) at room temperature and its partition coefficient
(n-octanol/water) stated as Log Pow is < -2 ( -3.279 ± 0.130). For both
determinations the shake-ﬂask method was used, combined with a validated
The vapour pressure of the test
substance is expected to be negligible as the melting point is above 300
The surface activity is not expected
for the substance and it is not a desired property of the material.
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 not flammable and a
relative self ignition temperature of 277.6 °C was found.
Screening procedure failed to
evidence any reason for concern related to explosive properties of the
substance, as decomposition was observed in the temperature range of
246.03 – 284.44 °C (onset = 253.76 °C) but the related energy of the
observed exothermal event is 211.11 J/g.
The substance is considered not to
be potentially oxidising, on the basis of the chemical structure of the
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.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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