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Characteristic
Scandium(III) oxide, Sc2O3, or scandia, is a high melting rare earth oxide.
Chemical formula：Sc2O3
Molar mass： 137.910 g/mol
Appearance： White powder
Density： 3.86 g/cm3
Melting point： 2,485 °C (4,505 °F; 2,758 K)
Solubility in water：insoluble in water
Solubility： soluble in hot acids (reacts)
Application
The biocompatibility of natural samarium (III) oxide, which has previously been used for treatment in bone-related diseases was determined as a first step in its evaluation as a bone implant material. The rates and products of the purely heterogeneous oxidations of C2H6 (g) and C2H4 (g) on Sm2O3 in the presence of O2 (g) were investigated in a very low-pressure flow reactor by on-line molecular beam mass spectrometry, about 1000±100 K. Samarium(III) oxide is used in optical and infrared absorbing glass to absorb infrared radiation. Also, it is used as a neutron absorber in control rods for nuclear power reactors. The oxide catalyzes dehydration of acyclic primary alcohols to aldehydes and ketones. Another use involves preparation of other samarium salts.
Characteristic
Scandium(III) oxide, Sc2O3, or scandia, is a high melting rare earth oxide.
Chemical formula：Sc2O3
Molar mass： 137.910 g/mol
Appearance： White powder
Density： 3.86 g/cm3
Melting point： 2,485 °C (4,505 °F; 2,758 K)
Solubility in water：insoluble in water
Solubility： soluble in hot acids (reacts)
Application
The biocompatibility of natural samarium (III) oxide, which has previously been used for treatment in bone-related diseases was determined as a first step in its evaluation as a bone implant material. The rates and products of the purely heterogeneous oxidations of C2H6 (g) and C2H4 (g) on Sm2O3 in the presence of O2 (g) were investigated in a very low-pressure flow reactor by on-line molecular beam mass spectrometry, about 1000±100 K. Samarium(III) oxide is used in optical and infrared absorbing glass to absorb infrared radiation. Also, it is used as a neutron absorber in control rods for nuclear power reactors. The oxide catalyzes dehydration of acyclic primary alcohols to aldehydes and ketones. Another use involves preparation of other samarium salts.
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