Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Reactive Blue 072 is a deep blue powder, solid at 20 °C. No melting point was detected till 350 °C. The test substance started decomposing at 280 °C. The boiling point of FAT 40045/Z could not be determined as the test substance started decomposing at approx. 280 °C. The average density of test substance at 20 °C temperature was found to be 2.1919 g/cm³. In accordance with Column 2 of REACH Annex VII, the vapour pressure study does not need to be conducted if the melting point is above 300 °C. No melting point for this substance was detected till 350 °C as it started decomposing at 280 °C. Hence the study is considered to be scientifically not necessary. The particle size distribution of FAT 40045/Z was determined according to CIPAC MT 187. This was achieved using the laser diffraction method with dry dispersion. The optical observation of the test item was as follows:

L10D (v, 0.1): 9.50 µm

L50D (v, 0.5): 18.6 µm

L90D (v, 0.9): 35.6 µm

The partition coefficient n-octanol/water of the test item at 20 °C, from the individual solubility in water and n-octanol, was determined to be -5.33 (log Pow). The water solubility of FAT 40045/Z at a temperature of 20 °C was determined to be 376.0 g/L. The surface tension of FAT 40045/Z was determined to be 59.956 mN/m at room temperature ca 20 °C. In the melting point study with FAT 40045/Z, no melting point was detected till 350 °C. The test substance started decomposing at 280 °C. Hence, the study is considered as technically not feasible. The auto-ignition temperature of FAT 40045/Z is >550 °C. FAT 40045/Z should be considered as not highly flammable. FAT 40045/Z is considered to be neither explosive nor oxidizing.

Additional information