Calcium is a metallic element, fifth in abundance in the earth's crust, of which it forms more than 3%. It is an essential constituent of leaves, bones, teeth, and shells.
The metal is a silvery colour and is rather hard. Chemically it is one of the alkaline earth elements; it readily forms a white coating of nitride in air, reacts with water, burns with a yellow-red flame, forming largely the nitride.
Calcium does not occur free in nature. Calcium is found mostly as limestone, gypsum and fluorite. Stalagmites and stalactites contain calcium carbonate.

The Ca materials Dlrow deals with:

Calcium metal in forms of Ingot, Lump, Granule, Flake etc.

Chemical analysis
Grade Ca Min.	Impurity (% Max)
	CL	N	Mg	Cu	Ni	Mn	Si	Fe	AL
99.9	0.065	0.01	0.012	0.005	0.001	0.001	0.002	0.001	0.001
99.5	0.15	0.02	0.03	0.01	0.002	0.004	0.004	0.005	0.01
99.0	0.20	0.05	0.10	0.03	0.004	0.008	0.008	0.02	0.02
98.5	0.35	0.10	0.30	0.08	0.005	0.02	0.01	0.03	0.03

Calcium Aluminium alloy

Mg-Ca alloy and Ca-Ni alloy are also available. Specifications shall be provided upon request.