Hydrogen gas is also produced. With very reactive metals such as potassium, the energy of the reaction causes the hydrogen to burn as the reaction takes place.

they have low melting points (increasing up the group from 28°C for Cs to 180°C for Li, whereas typical metals have much higher ... a density that is less than 1 g/cm 3) ...

Alkali Metals Limited was incorporated on April 17 1968 as Alkali Metals Private Limited in Hyderabad Andhra Pradesh. The company was converted into a public limited company and called Alkali Metals ...