(inorganic chemistry) The calcium salt of hydrochloric acid, CaCl₂; used as a drying agent and to melt ice on roads.

limelight

(physics) A minor stable isotope of calcium, ⁴³₂₀Ca, having twenty protons and twenty-three neutrons; it amounts to about 0.1% of the element in nature

(physics) A naturally-occurring radioactive isotope of calcium, ⁴⁸₂₀Ca, having twenty protons and twenty-eight neutrons, and a half-life of 4.3x10¹⁹ years

(physics) A radioactive isotope of calcium, ⁴⁵₂₀Ca, having twenty protons and twenty-five neutrons, and a half-life of 162.6 days; it is used as a tracer in studying calcium metabolism. As it decays it undergoes transformation (nuclear transmutation) via electron emission, also called negative beta decay (β−-decay), into scandium.

(inorganic chemistry) The compound CaCN₂ produced by reacting calcium carbide with nitrogen; it is used as a fertilizer

(inorganic chemistry) The inorganic salt Ca₃(AsO₄)₂ that is used as a pesticide and germicide

(inorganic chemistry) The calcium salt of acetic acid

alternative form of E282.

alternative form of E544.