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- Scandium is a chemical element
that has the symbol Sc and atomic number 21.
- A silvery white metal that is
always present as compounds, scandium ores occur as rare minerals from
Scandinavia and elsewhere.
- It is sometimes considered along
with yttrium, and the lanthanides and actinides, to be a rare earth
- Scandium is a rare, hard, silvery,
rough very dark metallic element that develops a slightly yellowish or
pinkish cast when exposed to air.
- Scandium is distributed sparsely
on earth, occurring only as trace quantities in many minerals.Scandium
is more common in the sun and certain stars than on Earth.
- The main application of scandium
by weight is in aluminium-scandium alloys for minor aerospace industry
components, and for unusual designs sports equipment (bikes, baseball
bats, firearms, etc.) which rely on high performance
- It is used in lacrosse sticks; a
light yet strong metal is needed for precise accuracy, speed and its
useful in the making of aircraft and spacecraft structures, probably
alloyed with other metals.
- Scandium (45Sc) NMR was used to
explore the B-site order-disorder in the Perovskite piezoelectric
- Scandium can significantly
increase strength and reduce grain size and has been added to aluminum
alloys in the former soviet union for missiles and MIG fighter
- The extraction of Sc(III) proceeds
according to the cation-exchange reaction at lower acidity and to a
solvating reaction at higher acidity.
- The quantitative extraction for
Sc(III) with PC-88A was found within 1 min while with D2EHPA the same
was attained only after 5 mins of shaking, though 77.6 % Sc(III) was
extracted into the organic phase within 1 min.
- The extraction of Sc(III) was
quantitative in the low acidic range of 0.01–0.1 mol·dm–3 HClO4 with
both, 0.1 mol·dm–3 D2EHPA and 0.03 mol·dm–3 PC-88A
- Separation of Sc(III) was also
carried out from some commonly associated metals and the method further
extended for its recovery from synthetic and real solutions of Fe(III),
Al(III) and Mg(II) scrap.
- The differential cross sections
for the ground-state transitions are, in general, more than 10 times
larger than those for the transitions to excited states; this is
interpreted to be a consequence of the large overlap of the ground-state
configurations of scandium 45 and calcium 43.
- The ESR spectrum of Sc3@C82 in
toluene and CS2 solutions exhibits the symmetric hyperfine splitting of
the 22 lines with a line width of 0.5G at room temperature, which was
consistent with the structure of Sc3@C82 having the C3v
- The two-stage amorphization found
in the present case of scandium molybdate is in contrast to the
single-stage amorphization reported in other isostructural Sc2(WO4)3 and
Lu2(WO4)3 occurring at 4 and 5 GPa, respectively
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