Sodium hydride is the chemical compound produced by the reaction of metallic sodium with hydrogen gas. It is a flammable solid and reacts violently with water in any form, liberating hydrogen. Sodium hydride is widely used in organic chemistry to deprotonate alcohols, amine, amides, and other sufficiently acidic protons. Sodium hydride is also used as a reducing agent and is effective for removing the last traces of water, alcohols, oxygen, and some sulfur compounds from solvents and certain gases.