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]
- 2 NaSi + 5 H2O → 5 H2 + Na2Si2O5
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.[3]
See also[edit]
External links[edit]
References[edit]
- ^ Material Safety Data Sheet, SiGNa Chemistry, Inc.
- ^ Hydrogen Production from Sodium Silicide Powder; Prospects for On-Board Generation, 14 July 2006
- ^ "Silicide-Based Hydrogen Generation for Back-Up Power and Portable Fuel Cells" (PDF). www.signachem.com/. July 2013. Archived from the original (PDF) on 25 March 2019. Retrieved 25 Mar 2019.