Scandium information, including Technical Data, Safety Data and its high purity properties, research, applications and other useful facts are discussed below. Scientific facts such as the atomic structure, ionization energy, abundance on Earth, conductivity and thermal properties are included.
 Scandium is a metal that has many of the characteristics of the rare earth elements, particularly yttrium. It is a light material with a higher melting point than aluminum giving uses in aerospace and power generation systems. Scandium is available as metal and compounds with purities from 99% to 99.999% (ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder. It is a dopant in high power and high intensity lighting glass and added to mercury vapor lamps with a very white light. It has demonstrated applications as a dopant in cerium ceramic electrolytes used for oxygen generation and solid oxide fuel cells.
Scandium facts, including appearance, CAS #, and molecular formula and safety data, research and properties are
available for many specific states, forms and shapes on the product pages listed to the left. Elemental or metallic forms include pellets, rod, wire and granules for evaporation source material purposes. Nanoparticles and nanopowders provide ultra high surface area which nanotechnology research and recent experiments demonstrate function to create new and unique properties and benefits.
 Oxides are available in forms including powders and dense pellets for such uses as optical coating and thin film applications. Oxides tend to be insoluble. Fluorides are another insoluble form for uses in which oxygen is undesirable such as metallurgy, chemical and physical vapor deposition and in some optical coatings. Scandium is available in soluble forms including chlorides, nitrates and acetates. These compounds are also manufactured as solutions at specified stoichiometries.
Scandium is a Block D, Group 3, Period 4 element. The number of electrons in each of Scandium's shells is 2, 8, 9, 2 and its electronic configuration is [Ar] 3d1 4s2. In its elemental form scandium's CAS number is 7440-20-2. The scandium atom has a radius of 160.6.pm and it's Van der Waals radius is 200.pm. Scandium is mildly toxic.
All elemental metals, compounds and solutions may be synthesized in ultra high purity (e.g. 99.999%) for laboratory standards, advanced electronic, thin fillm deposition using sputtering targets  and evaporation materials, metallurgy and optical materials and other high technology applications. Information is provided for stable (non-radioactive) isotopes. Organo-Metallic Scandium compounds are soluble in organic or non-aqueous solvents. See Analytical Services for information on available certified chemical and physical analysis techniques including MS-ICP, X-Ray Diffraction, PSD and Surface Area (BET) analysis.
Scandium was first discovered by Lars Nilson in 1879. The origin of the name, Scandium, comes from the Latin word 'Scandia' meaning Scandinavia.
 Scandium |
 Scandium |
 scandio |
 Escândio |
 escandio |
 Skandium |
Abundance. The following table shows the abundance of scandium and each of its naturally occurring isotopes on Earth along with the atomic mass for each isotope.
| Isotope |
Atomic Mass |
% Abundance on Earth |
| Sc-45 |
44.955910 |
100 |
The following table shows the abundance of Scandium present in the human body and in the universe scaled to parts per billion (ppb) by weight and by atom:
| |
Typical Human Body |
Universe |
| by Weight |
no data |
30 ppb |
| by Atom |
no data |
1 ppb |
Safety Data and Biological Role. The safety data for scandium metal, nanoparticles and its compounds can vary widely depending on the form. For potential hazard information, toxicity, and road, sea and air transportation limitations, such as DOT Hazard Class, DOT Number, EU Number, NFPA Health rating and RTECS Class, please see the specific material or compound referenced in the left margin. Scandium compounds have no biological role.
Ionization Energy. The ionization energy for scandium (the least required energy to release a single electron from the atom in it's ground state in the gas phase) is stated in the following table:
| 1st Ionization Energy |
633.09 kJ mol-1 |
| 2nd Ionization Energy |
1234.99 kJ mol-1 |
| 3rd Ionization Energy |
2388.67 kJ mol-1 |
Conductivity. As to scandium's electrical and thermal conductivity, the electrical conductivity measured as to electrical resistivity @ 20 ºC is 61 μΩcm and its electronegativities (or its ability to draw electrons relative to other elements) is 1.36. The thermal conductivity of scandium is 15.8 W m-1 K-1.
Thermal Properties. The melting point and boiling point for scandium are stated below. The following chart sets forth the heat of fusion, heat of vaporization and heat of atomization.
| Heat of Fusion |
15.9 kJ mol-1 |
| Heat of Vaporization |
376.1 kJ mol-1 |
| Heat of Atomization |
376.02 kJ mol-1 |
Recent Research & Development for ScandiumScandium Ion-Enhanced Oxidative Dimerization and N-Demethylation of N,N-Dimethylanilines by a Non-Heme Iron(IV)-Oxo Complex.
Park J, Morimoto Y, Lee YM, You Y, Nam W, Fukuzumi S.
Inorg Chem. 2011 Oct 19. [Epub ahead of print]
PMID:
22010853
[PubMed - as supplied by publisher]
Efficacy of smear layer removal at the root tip by using ethylenediaminetetraacetic Acid and erbium, chromium: yttrium, scandium, gallium garnet laser.
Peeters HH, Suardita K.
J Endod. 2011 Nov;37(11):1585-9. Epub 2011 Sep 28.
PMID:
22000469
[PubMed - in process]
Novel acridone-modified MCM-41 type silica: Synthesis, characterization and fluorescence tuning.
Hemgesberg M, Dörr G, Schmitt Y, Seifert A, Zhou Z, Klupp Taylor R, Bay S, Ernst S, Gerhards M, Müller TJ, Thiel WR.
Beilstein J Nanotechnol. 2011;2:284-92. Epub 2011 Jun 9.
PMID:
21977441
[PubMed - in process]
Apicoectomies with the Erbium Laser: A Complementary Technique for Retrograde Endodontic Treatment.
Angiero F, Benedicenti S, Signore A, Parker S, Crippa R.
Photomed Laser Surg. 2011 Oct 3. [Epub ahead of print]
PMID:
21967484
[PubMed - as supplied by publisher]
Structural Chemistry, Monoclinic-to-Orthorhombic Phase Transition, and CO(2) Adsorption Behavior of the Small Pore Scandium Terephthalate, Sc(2)(O(2)CC(6)H(4)CO(2))(3), and Its Nitro- And Amino-Functionalized Derivatives.
Mowat JP, Miller SR, Griffin JM, Seymour VR, Ashbrook SE, Thompson SP, Fairen-Jimenez D, Banu AM, Düren T, Wright PA.
Inorg Chem. 2011 Sep 29. [Epub ahead of print]
PMID:
21958382
[PubMed - as supplied by publisher]
Scandium Stimulates the Production of Amylase and Bacilysin in Bacillus subtilis.
Inaoka T, Ochi K.
Appl Environ Microbiol. 2011 Sep 23. [Epub ahead of print]
PMID:
21948839
[PubMed - as supplied by publisher]
Allyl complexes of scandium: synthesis and structure of neutral, cationic and anionic derivatives.
Standfuss S, Abinet E, Spaniol TP, Okuda J.
Chem Commun (Camb). 2011 Oct 11;47(41):11441-3. Epub 2011 Sep 23.
PMID:
21946865
[PubMed - in process]
Model for the evaluation of root wear by histometric analysis.
José Pimentel Lopes de Oliveira G, Silveira Faeda R, Marcantonio E Jr, Chiérici Marcantonio RA.
Microsc Res Tech. 2011 Oct;74(10):920-4. doi: 10.1002/jemt.20976. Epub 2010 Dec 30.
PMID:
21936025
[PubMed - in process]
Scandium-Catalyzed Silylation of Aromatic C?H Bonds.
Oyamada J, Nishiura M, Hou Z.
Angew Chem Int Ed Engl. 2011 Sep 20. doi: 10.1002/anie.201105636. [Epub ahead of print] No abstract available.
PMID:
21932221
[PubMed - as supplied by publisher]
Lewis acid-catalyzed propargylic etherification and sulfanylation from alcohols in MeNO2-H2O.
Ohta K, Koketsu E, Nagase Y, Takahashi N, Watanabe H, Yoshimatsu M.
Chem Pharm Bull (Tokyo). 2011;59(9):1133-40.
PMID:
21881257
[PubMed - in process]
Matrix infrared spectroscopic and theoretical studies on the reactions of scandium, yttrium, and lanthanide metal atoms with dimethyl ether.
Gong Y, Andrews L.
J Phys Chem A. 2011 Oct 27;115(42):11624-31. Epub 2011 Oct 3.
PMID:
21870806
[PubMed - in process]
Neutron activation analysis of a particle returned from asteroid Itokawa.
Ebihara M, Sekimoto S, Shirai N, Hamajima Y, Yamamoto M, Kumagai K, Oura Y, Ireland TR, Kitajima F, Nagao K, Nakamura T, Naraoka H, Noguchi T, Okazaki R, Tsuchiyama A, Uesugi M, Yurimoto H, Zolensky ME, Abe M, Fujimura A, Mukai T, Yada Y.
Science. 2011 Aug 26;333(6046):1119-21.
PMID:
21868669
[PubMed]
Lanthanide Complexes of Substituted ß-Diketone Hydrazone Derivatives: Synthesis, Characterization, and Biological Activities.
Hegazy WH, Al-Motawaa IH.
Bioinorg Chem Appl. 2011;2011:531946. Epub 2011 Jun 22.
PMID:
21799665
[PubMed - in process]
Electronic states and spin-orbit splitting of lanthanum dimer.
Liu Y, Wu L, Zhang CH, Krasnokutski SA, Yang DS.
J Chem Phys. 2011 Jul 21;135(3):034309.
PMID:
21787005
[PubMed - in process]
Asymmetric bromoamination of chalcones with a privileged N,N'-dioxide/scandium(III) catalyst.
Huang SX, Ding K.
Angew Chem Int Ed Engl. 2011 Aug 16;50(34):7734-6. doi: 10.1002/anie.201101076. Epub 2011 Jul 15. No abstract available.
PMID:
21766400
[PubMed - in process]
Isocyanide insertion and cyclization reactions to form indolines using pincer-type complexes of scandium.
Wicker BF, Pink M, Mindiola DJ.
Dalton Trans. 2011 Sep 21;40(35):9020-5. Epub 2011 Jul 8.
PMID:
21743908
[PubMed - in process]
Technologic advances in endodontics.
Mortman RE.
Dent Clin North Am. 2011 Jul;55(3):461-80, vii-viii.
PMID:
21726684
[PubMed - in process]
Elemental analysis of lung tissue particles and intracellular iron content of alveolar macrophages in pulmonary alveolar proteinosis.
Shimizu Y, Matsuzaki S, Dobashi K, Yanagitani N, Satoh T, Koka M, Yokoyama A, Ohkubo T, Ishii Y, Kamiya T, Mori M.
Respir Res. 2011 Jun 30;12:88.
PMID:
21718529
[PubMed - in process]
Reactivity of a scandium terminal imido complex towards unsaturated substrates.
Chu J, Lu E, Liu Z, Chen Y, Leng X, Song H.
Angew Chem Int Ed Engl. 2011 Aug 8;50(33):7677-80. doi: 10.1002/anie.201102267. Epub 2011 Jun 29. No abstract available.
PMID:
21717544
[PubMed - in process]
Highly enantioselective synthesis of ?-substituted butenolides via the vinylogous Mukaiyama-Michael reaction catalyzed by a chiral scandium(III)-N,N'-dioxide complex.
Zhang Q, Xiao X, Lin L, Liu X, Feng X.
Org Biomol Chem. 2011 Aug 21;9(16):5748-54. Epub 2011 Jun 30.
PMID:
21717015
[PubMed - in process] |
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