MSE PRO 99.5% (2N5) Bismuth (III) Oxide (Bi2O3) Powder
Bismuth (III) Oxide (Bi2O3) Powder, 99.5% (2N5) (Metal Basis)
CAS Number: 1304-76-3
Product Number: PO2302
Package Size: 1kg bottle
Product Purity: 99.5% (2N5) (metal basis)
Solubility: soluble in most acids
Bi2O3 easily forms solid solutions with many other metal oxides. These doped systems exhibit a complex array of structures and properties dependent on the type of dopant, the dopant concentration and the thermal history of the sample. The most widely studied systems are those involving rare earth metal oxides, Ln2O3, including yttria, Y2O3. Rare earth metal cations are generally very stable, have similar chemical properties to one another and are similar in size to Bi3+, which has a radius of 1.03 Å, making them all excellent dopants. Furthermore, their ionic radii decrease fairly uniformly from La3+ (1.032 Å), through Nd3+, (0.983 Å), Gd3+, (0.938 Å), Dy3+, (0.912 Å) and Er3+, (0.89 Å), to Lu3+, (0.861 Å) (known as the ‘lanthanide contraction’), making them useful to study the effect of dopant size on the stability of the Bi2O3 phases.
Bi2O3 has also been used as sintering additive in the Sc2O3 - doped zirconia system for intermediate temperature SOFC.
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