Registration Dossier
Registration Dossier
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EC number: 234-808-1 | CAS number: 12034-57-0
Endpoint summary
Administrative data
Description of key information
Niobium(II) oxide is a grey crystalline solid with a self-ignition temperature of 292 °C and a relative density of 7.30 g/cm³. The substance is non-flammable and does not have explosive properties. The substance has oxidizing properties (Category 2) and the water solubility is relatively low (1.74 µg/L at 22 °C and pH 8). The melting point of the inorganic substance is 1937 °C. The particle size distribution of the test item Niobium(II) oxide is:
D10: 1.51 µm;
D50: 8.86 µm;
D90: 59.78 µm.
Additional information
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