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SCANDIUM

SCANDIUM Suppliers list
Company Name: Mainchem Co., Ltd.
Tel: +86-0592-6210733
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Products Intro: Product Name:SCANDIUM
CAS:7440-20-2
Company Name: J & K SCIENTIFIC LTD.  
Tel: 400-666-7788 +86-10-82848833
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Products Intro: Product Name:Scandium powder (99.9% REO)
CAS:7440-20-2
Purity:(99.9% REO) Package:100mg;2g;500mg
Company Name: Alfa Aesar  
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Products Intro: Product Name:ScandiuM arc-cast pellet, 15.9MM (0.63in) dia
CAS:7440-20-2
Package:1pc Remarks:045118
Company Name: BeiJing Hwrk Chemicals Limted  
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Products Intro: Product Name:SCANDIUM
CAS:7440-20-2
Purity:0.25mm thick 99.9% trace rare earth metals basis50x50mm Package:60000RMB/500g
Company Name: Energy Chemical  
Tel: 021-58432009 / 400-005-6266
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Products Intro: Product Name:ScandiuM rod, 12.7MM (0.5in) dia, 99.9% (Metals basis excluding Ta)
CAS:7440-20-2
Package:25MM,50MM
SCANDIUM Basic information
General Description Uses
Product Name:SCANDIUM
Synonyms:ScandiuM rod, 12.7MM (0.5in) dia, 99.6% (Metals basis excluding Ta);Scandium-45;SC000205;SC000200;SC000211;SC000212;SC000210;Scandium powder, 99.9% trace rare earth metals basis
CAS:7440-20-2
MF:Sc
MW:44.96
EINECS:231-129-2
Product Categories:Metal and Ceramic Science;Metals;Scandium;AA Standard SolutionsSpectroscopy;AAS;Matrix Selection;NitrateAlphabetic;Reference/Calibration Standards;S;SA - SMSpectroscopy;Single Solution;Standard Solutions;metal or element
Mol File:7440-20-2.mol
SCANDIUM Structure
SCANDIUM Chemical Properties
Melting point 1540 °C(lit.)
Boiling point 2836 °C(lit.)
density 2.99 g/mL at 25 °C(lit.)
solubility Slowly dissolve in dilute acids.
form powder
color Silver-gray
resistivity50.5 μΩ-cm, 0°C
Water Solubility Reacts with water.
Sensitive air sensitive
Merck 13,8468
CAS DataBase Reference7440-20-2(CAS DataBase Reference)
Safety Information
Hazard Codes F,T,Xi
Risk Statements 5-11-34-23/24/25-36/37/38-36/38
Safety Statements 26-28-36/37-7/9-36/37/39-16-43-45-27
RIDADR UN 3089 4.1/PG 2
WGK Germany 1
TSCA Yes
HazardClass 8
PackingGroup III
MSDS Information
ProviderLanguage
SigmaAldrich English
ACROS English
ALFA English
SCANDIUM Usage And Synthesis
General DescriptionScandium, a transition metal with a silvery appearance, is often classified as a non-lanthanide rare earth element. It is widely used in various products, such as fluorescent lamps, baseball bats and bicycle frames. In industry, it is primarily alloyed to other metal compounds to produce high performance materials. Currently, the only known concentrated sources of scandium are thortveitite, euxenite and gadolinite, which are rare minerals from Scandinavia and Madagascar.
UsesScandium is mainly used in ceramics, lasers, phosphors and crystal. Scandium Oxide is suitable for the high index component of UV, AR and bandpass coatings due to its high index value, transparency, and layer hardness make high damage thresholds have been reported for combinations with Silicon Dioxide or Magnesium Fluoride for use in AR.
Scandium Metal is applied in various superalloys which show excellent metallic performance with their light gravaty. The main application of Scandium by weight is in Scandium-Aluminium alloys for minor aerospace industry components. They were used in the Russian military aircraft, specifically the MiG-21 and MiG-29. Some items of sports equipment, which rely on high performance materials, have been made with Scandium-Aluminium alloys. Employed in solid state synthesis of unusual clusters, Sc19Br28Z4, (Z=Mn, Fe, Ru or Os). These clusters are of interest for their structure and magnetic properties.
Chemical Propertiesgrey powder
HistoryOn the basis of the Periodic System, Mendeleev predicted the existence of ekaboron, which would have an atomic weight between 40 of calcium and 48 of titanium. Scandium was discovered by Nilson in 1878 in the minerals euxenite and gadolinite, which had not yet been found anywhere except in Scandinavia. By processing 10 kg of euxenite and other residues of rare-earth minerals, Nilson was able to prepare about 2 g of scandium oxide of high purity. Cleve later pointed out that Nilson’s scandium was identical with Mendeleev’s ekaboron. Scandium is apparently a much more abundant element in the sun and certain stars than here on Earth. It is about the 23rd most abundant element in the sun, compared to the 50th most abundant on Earth. It is widely distributed on Earth, occurring in very minute quantities in over 800 mineral species. The blue color of beryl (aquamarine variety) is said to be due to scandium. It occurs as a principal component in the rare mineral thortveitite, found in Scandinavia and Malagasy. It is also found in the residues remaining after the extraction of tungsten from Zinnwald wolframite, and in wiikite and bazzite. Most scandium is presently being recovered from thortveitite or is extracted as a by-product from uranium mill tailings. Metallic scandium was first prepared in 1937 by Fischer, Brunger, and Grieneisen, who electrolyzed a eutectic melt of potassium, lithium, and scandium chlorides at 700 to 800°C. Tungsten wire and a pool of molten zinc served as the electrodes in a graphite crucible. Pure scandium is now produced by reducing scandium fluoride with calcium metal. The production of the first pound of 99% pure scandium metal was announced in 1960. Scandium is a silver-white metal that develops a slightly yellowish or pinkish cast upon exposure to air. It is relatively soft, and resembles yttrium and the rare-earth metals more than it resembles aluminum or titanium. It is a very light metal and has a much higher melting point than aluminum, making it of interest to designers of spacecraft. Scandium is not attacked by a 1:1 mixture of conc. HNO3 and 48% HF. Scandium reacts rapidly with many acids. Twentythree isotopes and isomers of scandium are recognized. The metal is expensive, costing about $200/g with a purity of about 99.9%. About 20 kg of scandium (as Sc203) are now being used yearly in the U.S. to produce high-intensity lights, and the radioactive isotope 46Sc is used as a tracing agent in refinery crackers for crude oil, etc. Scandium iodide added to mercury vapor lamps produces a highly efficient light source resembling sunlight, which is important for indoor or night-time color TV. Little is yet known about the toxicity of scandium; therefore, it should be handled with care.
SCANDIUM Preparation Products And Raw materials
Tag:SCANDIUM(7440-20-2) Related Product Information
SCANDIUM - SC2O3, 99.99%, 2% HCL 500ML scandium trivanadium nonaoxide Scandium (lll) trifluoromethanesulfonate scandium tribromide ,SCANDIUM BROMIDE, ANHYDROUS, POWDER, 99.9% SCANDIUM(III) CHLORIDE, ANHYDROUS, 99.9%,Scandium (III) chloride, anhydrous SCANDIUM HEXAFLUOROACETYLACETONATE SCANDIUM TELLURIDE Scandium(Ⅲ)oxide SCANDIUM IODIDE scandium nitride SCANDIUM ANTIMONIDE scandium diboride SCANDIUM HYDRIDE SCANDIUM PHOSPHIDE Scandium trifluoride SCANDIUM BROMIDE scandium trinitrate tris(eta5-cyclopenta-2,4-dien-1-yl)scandium