|
CALCIUM
(Ca)
GENERAL
PROPERTIES
|
Symbol:
|
Ca
|
|
Atomic
Number:
|
20
|
|
Atomic
Weight:
|
40.08
|
|
Density:
|
1.55
gm/cc
|
|
Melting
Point:
|
839
oC
|
|
Boiling
Point:
|
1484
oC
|
|
Thermal
Conductivity:
|
2.01
W/cm/oK
@ 298.2 oK
|
|
Electrical
Resistivity:
|
3.91
microhm-cm @ 0 oC
|
|
Electronegativity:
|
1.0
Paulings
|
|
Specific
Heat:
|
0.156
Cal/g/oK
@ 25 oC
|
|
Heat
of Vaporization:
|
36.74
K-Cal/gm atom at 2467 oC
|
|
Heat
of Fusion:
|
2.23
Cal/gm mole
|
MATERIAL
OVERVIEW
Characteristics:
Moderately soft, silver-white, crystalline metal;
oxidizes in air to form adherent protective film; can
be machined, extruded, or drawn. Soluble in acid;
decomposes in water to liberate hydrogen. Sublimes
below its melting point in vacuum. Brinell hardness
17.
Derivation:
Electrolysis of fused CaCl2;
by thermal process under high vacuum from lime reduced
with aluminum. Does not occur free in nature.
Hazard:
Evolves hydrogen on contact with moisture. Flammable
in finely divided state; fire and explosion hazard
when heated or on contact with strong oxidizing
agents. Nontoxic.
TYPICAL
ANALYSES
Impurities
in ppm
|
Material
/ Purity:
|
3N
|
3N7
|
|
Al
|
200
|
2.02
|
|
Li
|
10
|
-
|
|
Mg
|
500
|
4.16
|
|
Mn
|
192
|
15
|
|
Fe
|
30
|
15
|
|
Cu
|
-
|
15
|
|
Si
|
50
|
20
|
ROD
|
Material
|
Purity
|
|
Calcium
Rod .500”
|
3N
|
Additional
diameters can be drawn in 2-3 days.
Rod is cut to order and sold by the inch or foot.
POWDER, SHOT, PELLETS, & INGOT
|
Material
|
Purity
|
|
Calcium
Shot 3-12mm
|
3N
|
Calcium
Shot 1-3mm
|
3N
|
|
Calcium
Ingot
|
2N
|
|
Calcium
Granules 6 Mesh
|
3N
|
Pellets,
ingots, and granules are packaged to order and sold by
the gram or kilogram.
COMPOUNDS
|
Material
|
Purity
|
|
Calcium
Arsenide Ca3As2
1/4" Pieces by Down
|
2N
|
|
Calcium
Boride CaB6
-200 Mesh
|
2N5
|
|
Calcium
Bromide CaBr2
-80 Mesh
|
2N5
|
|
Calcium
Carbonate CaCO3
-325
Mesh
|
3N8
|
|
Calcium
Chromate CaCrO4
-20 Mesh
|
3N
|
|
Calcium
Fluoride CaF2
1/4"-1/8" Pieces
|
3N5
|
|
Calcium
Fluoride CaF2
-325 Mesh
|
2N,
3N5
|
|
Calcium
Hydride CaH2
-20 Mesh
|
1N8
|
|
Calcium
Iodide CaI2
-20 Mesh
|
2N5
|
|
Calcium
Molybdate CaMoO4
-200 Mesh
|
3N
|
|
Calcium
Nitride Ca3N2
1/2" Pieces by Down
|
2N
|
|
Calcium
Nitride Ca3N2
-200 Mesh
|
2N
|
|
Calcium
Oxide CaO -325 Mesh
|
2N5
4N
|
|
Calcium
Selenate CaSeO4
-100 Mesh
|
2N
|
|
Calcium
Selenide CaSe -20 Mesh
|
2N5
|
|
Calcium
Selenite CaSeO3
-100 Mesh
|
2N
|
|
Calcium
Silicide 1/2"-1/8" Pieces
|
2N
|
|
Calcium
Stannate CaSnO3
-325 Mesh
|
2N
|
|
Calcium
Sulfide CaS -325 Mesh
|
2N,
4N
|
|
Calcium
Tellurate CaTeO4
-100 Mesh
|
2N
|
|
Calcium
Telluride CaTe -20 Mesh
|
2N5
|
|
Calcium
Titanate CaTiO3
-100 Mesh
|
2N5
|
|
Calcium
Titanate CaTiO3
-150, +325 Mesh
|
2N5
|
|
Calcium
Titanate CaTiO3
-325 Mesh, +10 Microns
|
2N5
|
|
Calcium
Titanate CaTiO3
-325 Mesh
|
2N5
|
|
Calcium
Tungstate CaWO4
-325 Mesh
|
3N
|
|
Calcium
Vanadate CaV2O6
-325 Mesh
|
3N
|
|
Calcium
Zirconate CaZrO3
-150, +325 Mesh
|
2N
|
Compounds
are packaged to order and sold by the gram or
kilogram.
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