Sodium silicide (NaSi, Na4Si4) is a binary inorganic compound consisting of sodium and silicon.
It is a solid black or grey crystalline material.
[1] Sodium silicide reacts readily with water yielding gaseous hydrogen and aqueous sodium silicate in an exothermic reaction (~175 kJ·mol−1):[2] This is used in hydrogen technologies to generate hydrogen as a fuel.
And is also used as high energy dense storage for hydrogen under low pressure.
This inorganic compound–related article is a stub.