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Scandium(III) oxide or scandia is a inorganic compound with formula Sc 2 O 3.It is one of several oxides of rare earth elements with a high melting point.It is used in the preparation of other scandium compounds as well as in high-temperature systems (for its resistance to heat and thermal shock), electronic ceramics, and composition (as a helper material).
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Scandium(III) oxide or scandia is a inorganic compound with formula Sc 2 O 3.It is one of several oxides of rare earth elements with a high melting point.It is used in the preparation of other scandium compounds as well as in high-temperature systems (for its resistance to heat and thermal shock), electronic ceramics, and composition (as a helper material).
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Reaction of scandium with air. Scandium metal tarnishes in air and burns readily to form scandium (III) oxide, Sc 2 O 3. 4Sc + 3O 2 → 2Sc 2 O 3. Reaction of scandium with water. When finely divided, or heated, scandium metal dissolves in water to form solutions containing the aquated Sc(III) ion together with hydrogen gas, H 2.
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Scandium is a silvery white, moderately soft metal.It is fairly stable in air but will slowly change its colour from silvery white to a yellowish appearance because of formation of Sc 2 O 3 oxide on the surface. The metal slowly dissolves in diluted acids—except hydrofluoric acid (HF), in which a protective trifluoride layer prevents further reaction. . Scandium is paramagnetic from 0 K
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Scandium is a silvery white, moderately soft metal.It is fairly stable in air but will slowly change its colour from silvery white to a yellowish appearance because of formation of Sc 2 O 3 oxide on the surface. The metal slowly dissolves in diluted acids—except hydrofluoric acid (HF), in which a protective trifluoride layer prevents further reaction. . Scandium is paramagnetic from 0 K
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The scandium atom has a radius of 162 pm and a Van der Waals radius of 216 pm.Scandium was predicted by Dmitri Mendeleev in 1871 and actually discovered and isolated by Lars Nilson in 1879. One of the transition metals , scandium has a silvery-white appearance in its elemental form which oxidizes to yellow or pinkish upon contact with air.
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Sep 21, 2016 Scandium oxidizes when exposed to air and its color will be tinged with yellow or pink due to the formation of scandium oxide on the surface, according to the Encyclopedia Britannica.
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The scandium atom has a radius of 162 pm and a Van der Waals radius of 216 pm.Scandium was predicted by Dmitri Mendeleev in 1871 and actually discovered and isolated by Lars Nilson in 1879. One of the transition metals , scandium has a silvery-white appearance in its elemental form which oxidizes to yellow or pinkish upon contact with air.
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Predicted data is generated using the US Environmental Protection Agency’s EPISuite™. Log Octanol-Water Partition Coef (SRC): Log Kow (KOWWIN v1.67 estimate) = 2.97 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42): Boiling Pt (deg C): 576.48 (Adapted Stein Brown method) Melting Pt (deg C): 248.32 (Mean or Weighted MP) VP(mm Hg,25 deg C): 4.35E-012 (Modified Grain
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The scandium atom has a radius of 162 pm and a Van der Waals radius of 216 pm.Scandium was predicted by Dmitri Mendeleev in 1871 and actually discovered and isolated by Lars Nilson in 1879. One of the transition metals , scandium has a silvery-white appearance in its elemental form which oxidizes to yellow or pinkish upon contact with air.
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Scandium would limit the grain growth of high temperature, once alloyed with aluminium and aluminium based ones. Properties of Scandium. The metal has a silvery-white appearance while having a moderately soft texture. Owing to the formation of Sc 2 O 3 oxide on its surface, its stability in air changes slowly to a yellowish form.
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Scandium Metal Features 1. Soft metal with a silvery appearance 2. Can oxidized by air 3. Dissolves slowly in most dilute acids. 4. Scandium turnings ignite in air with a brilliant yellow flame to form scandium (iii) oxide.
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Scandium would limit the grain growth of high temperature, once alloyed with aluminium and aluminium based ones. Properties of Scandium. The metal has a silvery-white appearance while having a moderately soft texture. Owing to the formation of Sc 2 O 3 oxide on its surface, its stability in air changes slowly to a yellowish form.
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Scandium Oxide . CAS 12060-08-1. The chemical formula of scandium oxide is Sc2O3. Property: white solid. It has cubic structure of rare earth sesquioxide. Density 3.864. Melting point 2403 ℃ ± 20 ℃. Insoluble in water, soluble in hot acid. It is prepared by the thermal decomposition of scandium salt.
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Scandium Oxide , Find Complete Details about Scandium Oxide,Sc2o3,Sc Oxide,High Purity Scandium Oxide from Rare Earth Products Supplier or Manufacturer-Fujian Changting Golden Dragon Rare-Earth Co., Ltd.
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Scandium Scandium is a soft, silvery transition element which occurs in rare minerals from Scandinavia. It develops a slightly yellowish or pinkish cast when exposed to air. Scandium tarnished in air and burn easily, once it has been ignited. It reacts with water to form hydrogen gas and will dissolve in many acids.
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Scandium is a very rare, lightweight, corrosion resistant metal that is stronger than aluminum and can be alloyed in small amounts to improve the properties of aluminum, particularly in aerospace applications. It is also used in high intensity lamps, laser systems, and solid oxide fuel cells.
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Processed scandium oxide, a white powder, is stable at ambient temperature and is the standard scandium form for commerce. Despite scandium’s scarcity and high cost, interest in the metal is high and multiple high value commercial uses have been developed. Of particular interest is the alloy of scandium into aluminum metal products.
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Occurrence. Scandium is the 50 th most common element in the earth crust and 35 th most abundant element in the Sun. Scandium is found in ores of tin, uranium and tungsten. Thortveitite (Scandium silicate) contain 45% scandium in the form of scandium oxide but it is very rare in nature.
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Scandium(III) oxide or scandia is a inorganic compound with formula Sc 2 O 3.It is one of several oxides of rare earth elements with a high melting point.It is used in the preparation of other scandium compounds as well as in high-temperature systems (for its resistance to heat and thermal shock), electronic ceramics, and composition (as a helper material).
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Scandium was discovered by Lars Fredrik Nilson, a Swedish chemist, in 1879 while attempting to produce a sample of pure ytterbia from 10 kilograms of the mineral euxenite ((Y, Ca, Er, La, Ce, U, Th)(Nb, Ta, Ti) 2 O 6).Scandium can be obtained from the minerals thortveitite ((Sc, Y) 2 Si 2 O 7), bazzite (Be 3 (Sc, Al) 2 Si 6 O 18) and wiikite, but is usually obtained as a byproduct of refining
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Occurrence. Scandium is the 50 th most common element in the earth crust and 35 th most abundant element in the Sun. Scandium is found in ores of tin, uranium and tungsten. Thortveitite (Scandium silicate) contain 45% scandium in the form of scandium oxide but it is very rare in nature.
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Scandium Scandium is a soft, silvery transition element which occurs in rare minerals from Scandinavia. It develops a slightly yellowish or pinkish cast when exposed to air. Scandium tarnished in air and burn easily, once it has been ignited. It reacts with water to form hydrogen gas and will dissolve in many acids.
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Scandium is a very rare, lightweight, corrosion resistant metal that is stronger than aluminum and can be alloyed in small amounts to improve the properties of aluminum, particularly in aerospace applications. It is also used in high intensity lamps, laser systems, and solid oxide fuel cells.
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Processed scandium oxide, a white powder, is stable at ambient temperature and is the standard scandium form for commerce. Despite scandium’s scarcity and high cost, interest in the metal is high and multiple high value commercial uses have been developed. Of particular interest is the alloy of scandium into aluminum metal products.
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