21 Sc 44.956

Scandium

transition metal · Group 3 · Period 4

USGS 2025 3 section(s) thin

Atomic properties

Atomic number
21
Z
Atomic weight
44.956[1]
g/mol
Density
2.985 g/cm³
at STP
Melting point
1541 °C
at 1 atm
Boiling point
2836 °C
at 1 atm
Crystal structure
hexagonal
Electron config.
[Ar] 3d¹ 4s²
Oxidation states
+3
most common

Market data

No tradeable futures market for Sc on Yahoo / Stooq. Live market data is not available; pricing in this page is based on contract reference figures from the source documents.

Commercial forms & specifications

Product FormChemical FormulaMolecular WeightTypical PurityPrice Range (USD/kg)Main Applications
Scandium MetalSc44.96 g/mol99.9-99.99%$4,500-7,000Alloys, research, targets
Scandium OxideSc₂O₃137.91 g/mol99.9-99.999%$3,800-5,500Ceramics, solid oxide fuel cells
Scandium FluorideScF₃101.95 g/mol99.9-99.99%$4,200-6,000Optical coatings, metallurgy
Scandium ChlorideScCl₃151.31 g/mol99.9-99.99%$3,500-5,000Chemical synthesis, catalysts
Scandium NitrateSc(NO₃)₃·4H₂O303.02 g/mol99.9%$3,200-4,500Chemical precursor
Sc-Al Master AlloyAl-2%ScVariable2% Sc content$180-250Aerospace alloys
Scandium AcetateSc(CH₃COO)₃222.07 g/mol99.9%$3,800-5,200Chemical synthesis
Scandium CarbonateSc₂(CO₃)₃269.92 g/mol99.9%$3,600-5,000Precursor material
Scandium PowderSc44.96 g/mol99.9%$6,000-9,000Additive manufacturing
Scandium FoilSc44.96 g/mol99.9%$8,000-12,000Research applications
Scandium SulfateSc₂(SO₄)₃·8H₂O522.24 g/mol99.9%$3,400-4,800Chemical processing
Scandium HydroxideSc(OH)₃95.98 g/mol99.9%$3,300-4,600Precursor for oxide

Suppliers by country

🇦🇺 Australia

CompanyProduct FormsSpecialties
Scandium International MiningScandium oxide, hydroxideNyngan Scandium Project, high-purity oxide
Clean TeQ HoldingsScandium oxideSunrise Project, integrated with nickel-cobalt
Australian Mines LimitedScandium oxideSconi Project by-product

🇨🇦 Canada

CompanyProduct FormsSpecialties
Rio TintoScandium oxideSorel-Tracy plant, titanium dioxide by-product
Search MineralsScandium oxide concentrateFoxtrot Project, REE co-production

🇨🇳 China

CompanyProduct FormsSpecialties
Hunan Oriental ScandiumMetal, oxide, compoundsIntegrated producer, high-purity products
Guangxi MaoxinScandium oxide, master alloysREE by-product recovery
Ganzhou KemingruiScandium compoundsChemical grade products

🇷🇺 Russia

CompanyProduct FormsSpecialties
UC RusalScandium oxide, Al-Sc alloysAluminum production by-product
Dalur JSCScandium concentrateUranium processing by-product

🇺🇸 United States

CompanyProduct FormsSpecialties
Bloom EnergyScandium oxide (captive use)Solid oxide fuel cells
Stanford MaterialsMetal, compounds, alloysHigh-purity specialty products
American ElementsFull range of Sc productsResearch grade materials

🇰🇿 Kazakhstan

CompanyProduct FormsSpecialties
KazatompromScandium concentrateUranium processing by-product

🇵🇭 Philippines

CompanyProduct FormsSpecialties
Sumitomo Metal MiningScandium oxideTaganito HPAL nickel laterite by-product

Market demand by product form

Product FormGlobal Market SizePrimary MarketsMain ApplicationsGrowth Rate (CAGR)
Scandium Oxide$75 millionUSA, Europe, JapanSOFCs, ceramics, alloys12.5%
Al-Sc Master Alloys$45 millionUSA, Europe, RussiaAerospace, defense15.2%
Scandium Metal$15 millionUSA, Japan, EuropeResearch, electronics8.5%
Scandium Compounds$10 millionGlobalCatalysts, lighting7.0%
Scandium Powder$5 millionUSA, Europe3D printing, coatings18.5%

Moles per kilogram

Product FormFormulaMW (g/mol)Moles/kg
Scandium MetalSc44.9622.24
Scandium OxideSc₂O₃137.917.25
Scandium FluorideScF₃101.959.81
Scandium ChlorideScCl₃151.316.61
Scandium Nitrate (hydrated)Sc(NO₃)₃·4H₂O303.023.30
Scandium HydroxideSc(OH)₃95.9810.42
Scandium Sulfate (hydrated)Sc₂(SO₄)₃·8H₂O522.241.91

References

No citations on this page yet. References will appear here once enrichment runs.

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Coverage notes

The following sections are thin or absent in the source document for this element. They will be filled by enrichment passes (NIST atomic, OSHA/NIOSH safety, USGS / IAI environmental).