Strontium Nitrate CAS number10042-76-9Molecular weightMolecular formula / chemical symbol Sr(NO3)2 Description White crystalsUSESStrontium nitrate is primarily used as an oxidizer and colourant for fireworks.Report Content Standard value (% wt.) Sr >99.0 Ca <0.008 Ba <0.05 Fe <0.005 Cl <0.001 H2O <0.1 pH value 5-8 Insoluble matters (water) <0.02