Because sodium is extremely reactive, it never occurs in the free state in Earth’s crust. In 1807Sir Humphry Davybecame the first to prepare sodium in its elemental form, applyingelectrolysisto fused sodium hydroxide (NaOH). Sodium is an important constituent of a number of silicate materials, such asfeldsparsandmicas. As it is very reactive, its reaction with air cannot be performed in a laboratory, those are those reactions given by scientists who perform such experiments in controlled experimental conditions Because sodium is extremely reactive, it never occurs in the free state in Earth’s crust. In 1807Sir Humphry Davybecame the first to prepare sodium in its elemental form, applyingelectrolysisto fused sodium hydroxide (NaOH). Sodium is an important constituent of a number of silicate materials, such asfeldsparsandmicas.