Strontium nitrate

Strontium nitrate, also known as strontium dinitrate or nitric acid strontium salt, is an inorganic salt with the formula Sr(NO3)2 and CAS number 10042-76-9. It is commercially available as a technical-grade crystalline compound and carries no assigned E-code or food additive status.

In pyrotechnics and signal flares, strontium nitrate acts as an oxidizer that simultaneously produces the characteristic crimson flame associated with strontium ion emission, making it the active component in military and aerospace signaling devices. In corrosion-inhibiting primers for aerospace aluminum substrates, it releases strontium ions that passivate the metal surface and suppress anodic dissolution.

Strontium nitrate is supplied under REACH registration requirements for the European market and is available in technical grade for industrial applications. Standard packaging includes multi-wall bags and intermediate bulk containers. Buyers should verify supplier SDS documentation and confirm compliance with applicable transport regulations under ADR classification for oxidizing solids.