Calcium is the third element of the alkali-earths metals group with chemical symbol Ca and atomic number 20.
Calcium metal is a strong silvery white solid at normal pressure and temperature, it is a very strong metal. Calcium reacts with the air very slowly, instead reacts with hot water producing pure Hydrogen gas. Calcium is the first alkali-earth metal that must be put under High Quality mineral oil to prevent oxidation.
We suggest this element at the purity of 99,95% in a 5 mL glass vial with about 2 cm of diameter.
Normally available in 1 day, you can order your calcium metal sample below.