Strontium nitrate is an inorganic compound composed of the elements strontium, nitrogen and oxygen with the formula Sr(NO3)2. This colorless solid is used as a red colorant and oxidizer in pyrotechnics.
3D model (JSmol)
CompTox Dashboard (EPA)
|Molar mass||211.630 g/mol (anhydrous) |
283.69 g/mol (tetrahydrate)
|Appearance||white crystalline solid|
|Density||2.986 g/cm3 (anhydrous) |
2.20 g/cm3 (tetrahydrate)
|Melting point||570 °C (1,058 °F; 843 K) (anhydrous) |
100 °C, decomposes (tetrahydrate)
|Boiling point||645 °C (1,193 °F; 918 K) decomposes|
710 g/L (18 °C)
660 g/L (20 °C)
604.3 g/L (0 °C)
2065 g/L (100 °C)
|Solubility||soluble in ammonia |
very slightly soluble in ethanol, acetone
insoluble in nitric acid
|cubic (anhydrous) |
|Occupational safety and health (OHS/OSH):|
|NFPA 704 (fire diamond)|
|Lethal dose or concentration (LD, LC):|
LD50 (median dose)
|2750 mg/kg (rat, oral)|
|Safety data sheet (SDS)|||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
(what is ?)
Strontium nitrate can aid in eliminating and lessening skin irritations. When mixed with glycolic acid, strontium nitrate reduces the sensation of skin irritation significantly better than using glycolic acid alone.
As a divalent ion with an ionic radius similar to that of Ca2+ (1.13 Å and 0.99 Å respectively), Sr2+ ions resembles calcium's ability to traverse calcium-selective ion channels and trigger neurotransmitter release from nerve endings. It is thus used in electrophysiology experiments.