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- Calcium (Ca) Metal Synonyms:
calcium, Ca, kalzium, calcio, calcium metal granule, crystalline calcium, calcium metal shot, calcium metal turning, calcium metal nodules, calcium metal wire, calcium metal pieces, calcium dendritic pieces, calcium, calcium metal ingot, high purity calcium, CAS# 7440-70-2
Chemical Name: Calcium
Chemical Formula: Ca
The metallic element calcium has a silvery color and is harder than sodium but softer than aluminum. The pure element is never found in nature uncombined, rather commonly occurring in limestone (as CaCO3), gypsum (as CaSO4-H2O) and fluorite (as CaF2). Calcium, one of the alkaline earth elements, reacts in air to form a white coating of nitride and reacts with water, alcohol and dilute acids with evolution of hydrogen. Calcium is the fifth most abundant element in the earth's crust.
98%, 99%, 99.5%, 99.987%, and 99.99%
Shot, granules, wire, turnings, dendritic pieces, and ingot
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Atomic Number
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20
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Molecular Weight (g/mol.)
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40.08
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Apparent Density (g/cm3)
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1.55
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Thermal conductivity (cal/s-cm-°C)
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.3
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Melting Point (°C)
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845
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Boiling Point (°C)
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1420
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Specific heat @25°C (cal/g-°C)
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.0149
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Brinell Hardness
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16-18
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Tensile Strength (psi)
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6900
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Electronegativity (Paulings)
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1.0
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Covalent Radius (angstroms)
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1.74
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Crystallography
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cubic structure, face centered
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- Calcium (Ca) Metal Typical Applications:
Refinement of lead alloys (especially for batteries), deoxidizing and cleaning steel, desulfurization and shape control of alumina and manganese sulfide inclusions, and a "getter" for residual gases in vacuum tubes.
Packaged under argon
Listed. For further information please call the E.P.A. at 1.202.554.1404
CAS# 7440-70-2
1401
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