The sodium readily interacts with water.
It reacts vigorously with water to produce a solution of sodium hydroxide and hydrogen gas. The nature of the reaction is very exothermic. The solution of sodium hydroxide results from the simple evolution of hydrogen gas, which occurs naturally as a vapor.
The Reaction forms-
2Na(s)+2H2O→2NaOH(aq)+H2(g)
The resultant is non-colored and basic in nature.
Therefore, sodium hydroxide results from the interaction of sodium metal with water.