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Strontium nitrate

Strontium nitrate
Strontium nitrate.png
Names
IUPAC name
Strontium nitrate
Identifiers
3D model (Jmol)
ChemSpider
ECHA InfoCard 100.030.107
EC Number 233-131-9
PubChem CID
UNII
Properties
Sr(NO3)2
Molar mass 211.630 g/mol (anhydrous)
283.69 g/mol (tetrahydrate)
Appearance white granular 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
anhydrous:
710 g/L (18 °C)
660 g/L (20 °C)
tetrahydrate:
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
−57.2·10−6 cm3/mol
Structure
cubic (anhydrous)
monoclinic (tetrahydrate)
Hazards
Main hazards Irritant
Safety data sheet [1]
NFPA 704
Flammability code 0: Will not burn. E.g., water Health code 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g., chloroform Reactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogen Special hazards (white): no codeNFPA 704 four-colored diamond
Flash point Non-flammable
Lethal dose or concentration (LD, LC):
LD50 (median dose)
 2750 mg/kg (rat, oral)
Related compounds
Other anions
Strontium sulfate
Strontium chloride
Other cations
Beryllium nitrate
Magnesium nitrate
Calcium nitrate
Barium nitrate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N  (what is YesYN ?)
Infobox references

Strontium nitrate is an inorganic compound with the formula Sr(NO3)2. This colourless solid is used as a colorant (red) in pyrotechnics and is also used as an oxidizer in pyrotechnics.

Strontium nitrate is typically generated by the reaction of nitric acid on strontium carbonate.

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Like many other strontium salts, strontium nitrate is used to produce a rich red flame in fireworks and road flares. The oxidizing properties of this salt are advantageous in such applications.

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 vs. 0.99 A, 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.

In his short story "A Germ Destroyer," Rudyard Kipling refers to strontium nitrate as the main ingredient of the titular fumigant


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