Calcium Pellets

Calcium Pellets combine high chemical reactivity, low density, and strong reducing power, making them essential in metallurgical processing, chemical synthesis, and environmental technologies. Their compact pellet form ensures controlled handling, reduced oxidation during storage, and consistent dosing in industrial systems. Widely used in steel refining, agriculture, and chemical manufacturing, calcium pellets act as deoxidizers in steelmaking, soil conditioners in precision farming, and as active agents in desulfurization and CO₂ capture processes. Specific technologies benefiting from calcium pellets include calcium looping systems for thermochemical energy storage, where they cycle between CaO and CaCO₃ for heat retention, and high-temperature sorbents for efficient CO₂ removal in clean energy systems. Advances in pelletization, such as polyvinyl alcohol binding, have improved their mechanical strength, attrition resistance, and long-term reactivity, enabling sustained performance in repeated cycles. The combination of reactivity, form stability, and versatility positions calcium pellets as a high-value resource for both industrial innovation and environmental sustainability.

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Tolerance

Properties

Reference & Citations

Flammable

each

Tolerances

Pellet/Lump

Maximum Lump Size		Nominal

Material Properties for Metals

Atomic Properties

Element	Value
Atomic number	20
Crystal structure	Face centred cubic
Electronic structure	Ar 4s²
Valences shown	2
Atomic weight( amu )	40.08
Thermal neutron absorption cross-section( Barns )	0.44
Photo-electric work function( eV )	2.87
Natural isotope distribution( Mass No./% )	40/ 96.941
Natural isotope distribution( Mass No./% )	43/ 0.135
Natural isotope distribution( Mass No./% )	44/ 2.086
Natural isotope distribution( Mass No./% )	48/ 0.187
Natural isotope distribution( Mass No./% )	42/ 0.647
Natural isotope distribution( Mass No./% )	46/ 0.004
Atomic radius - Goldschmidt( nm )	0.197
Ionisation potential( No./eV )	2/ 11.87
Ionisation potential( No./eV )	6/ 109
Ionisation potential( No./eV )	1/ 6.11
Ionisation potential( No./eV )	4/ 67.1
Ionisation potential( No./eV )	3/ 50.9
Ionisation potential( No./eV )	5/ 84.4

Mechanical Properties

Element	Value
Material condition	Hard
Material condition	Soft
Poisson's ratio	0.31
Poisson's ratio	0.31
Bulk modulus( GPa )	17.2
Bulk modulus( GPa )	17.2
Tensile modulus( GPa )	19.6
Tensile modulus( GPa )	19.6
Hardness - Vickers( kgf mm⁻² )	17
Tensile strength( MPa )	55
Tensile strength( MPa )	115
Yield strength( MPa )	14
Yield strength( MPa )	84.5

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	3.7@20@20°C
Temperature coefficient( K⁻¹ )	0.00457@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV )	-0.51

Physical Properties

Element	Value
Boiling point( C )	1484
Density( gcm⁻³ )	1.55@20°C

Thermal Properties

Element	Value
Melting point( C )	839
Latent heat of evaporation( J g⁻¹ )	3760
Latent heat of fusion( J g⁻¹ )	209
Specific heat( J K⁻¹ kg⁻¹ )	653@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	125@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	22@0-100°C