Strontium nitrate

Strontium nitrate

Names
IUPAC name Strontium nitrate
Identifiers
CAS Number	10042-76-9 Y
3D model (JSmol)	Interactive image
ChemSpider	23231 Y
ECHA InfoCard	100.030.107
EC Number	233-131-9
PubChem CID	24848
UNII	BDG873AQZL Y
CompTox Dashboard (EPA)	DTXSID9064924
InChI InChI=1S/2NO3.Sr/c2*2-1(3)4;/q2*-1;+2 Y Key: DHEQXMRUPNDRPG-UHFFFAOYSA-N Y InChI=1/2NO3.Sr/c2*2-1(3)4;/q2*-1;+2 Key: DHEQXMRUPNDRPG-UHFFFAOYAG
SMILES [Sr+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O
Properties
Chemical formula	Sr(NO3)2
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 (212 °F; 373 K), decomposes (tetrahydrate)
Boiling point	645 °C (1,193 °F; 918 K) decomposes
Solubility in water	anhydrous: 660–709 g/L (20 °C (68 °F; 293 K)) tetrahydrate: 604.3 g/L (0 °C (32 °F; 273 K)) 2065 g/L (100 °C (212 °F; 373 K))
Solubility in ammonia	soluble
Solubility in ethanol	slightly soluble
Solubility in acetone	slightly soluble
log P	0.19
Band gap	3.71 eV
Magnetic susceptibility (χ)	57.2×10−6 cm3/mol
Structure (anhydrous)
Crystal structure	Cubic
Space group	Pa3
Point group	m3
Lattice constant	a = 7.76 Å, b = 7.76 Å, c = 7.76 Å α = 90°, β = 90°, γ = 90°
Lattice volume (V)	466.47 Å3
Formula units (Z)	4
Structure (tetrahydrate)
Crystal structure	Monoclinic
Thermochemistry (anhydrous)
Heat capacity (C)	149.9 J⋅mol−1·K-1
Std molar entropy (S⦵298)	194.6 J⋅mol−1·K-1
Std enthalpy of formation (ΔfH⦵298)	−978.2 kJ⋅mol−1
Gibbs free energy (ΔfG⦵)	−780.0 kJ⋅mol−1
Enthalpy of fusion (ΔfH⦵fus)	44.6 kJ⋅mol−1
Hazards
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H271, H318, H402
Precautionary statements	P210, P220, P221, P273, P280, P283, P305+P351+P338+P310, P306+P360, P370+P378, P371+P380+P375, P501
NFPA 704 (fire diamond)	2 0 2 OX
Lethal dose or concentration (LD, LC):
LD50 (median dose)	2750 mg/kg (rat, oral)
LC50 (median concentration)	>4.5 mg/L (rat, 4h, inhalation)
Related compounds
Other anions	Strontium carbonate Strontium chloride Strontium sulfate
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 verify (what is YN ?) Infobox references

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.