Chemical elements
    Physical Properties
    Chemical Properties
      Strontium Hydride
      Strontium Fluoride
      Strontium Chloride
      Strontium Perchloride
      Strontium Bromide
      Strontium Perbromide
      Strontium Iodide
      Strontium Periodides
      Mixed Halides
      Strontium Oxychloride
      Strontium Hypochlorite
      Strontium Chlorite
      Strontium Chlorate
      Strontium Perchlorate
      Strontium Oxybromide
      Strontium Bromate
      Strontium Oxyiodide
      Strontium Iodate
      Strontium Periodate
      Strontium Manganite
      Strontium Manganate
      Strontium Permanganate
      Strontium Suboxide
      Strontium Oxide
      Strontium Hydroxide
      Strontium Peroxide
      Strontium Diperoxyhydrate
      Strontium Hydride
      Strontium Hydrosulphide
      Strontium Polysulphides
      Strontium Oxysulphide
      Strontium Thiosulphate
      Strontium Hyposulphite
      Strontium Sulphite
      Strontium Dithionate
      Strontium Tetrathionate
      Strontium Sulphate
      Acid Strontium Sulphate
      Strontium Pyrosulphate
      Strontium Selenide
      Strontium Selenite
      Strontium Selenate
      Strontium Telluride
      Strontium Tellurite
      Strontium Tellurate
      Strontium Chromate
      Strontium Dichromate
      Strontium Trichromate
      Strontium Chlorochromate
      Strontium Molybdate
      Complex Strontium Molybdates
      Strontium Tungstate
      Strontium Uranate
      Strontium Nitride
      Strontium Azide
      Strontium Ammonium
      Strontium Hexammoniate
      Strontium Amide
      Strontium Imide
      Strontium Imidosulphonate
      Strontium Hyponitrite
      Strontium Nitrohydroxylaminate
      Strontium Nitrite
      Strontium Nitrate
      Strontium Phosphide
      Strontium Dihydrohypophosphite
      Strontium Hydrophosphite
      Strontium Dihydrophosphite
      Strontium Orthophosphates
      Strontium Pyrophosphate
      Strontium Metaphosphate
      Basic Strontium Phosphate
      Strontium Arsenide
      Strontium Orthoarsenites
      Strontium Pyroarsenite
      Strontium Metarsenite
      Strontium Orthoarsenates
      Strontium Pyroarsenate
      Strontium Thioarsenites
      Strontium Thio-oxyarsenates
      Strontium Thioantimonite
      Strontium Antimonate
      Strontium Orthovanadate
      Strontium Metavanadate
      Strontium Pervanadate
      Strontium Carbide
      Strontium Carbonyl
      Strontium Formate
      Strontium Acetate
      Strontium Oxalate
      Strontium Carbonate
      Strontium Trithiocarbonate
      Strontium Perthiocarbonate
      Strontium Cyanide
      Strontium Cyanamide
      Strontium Thiocyanate
      Strontium Silicide
      Strontium Silicate
      Strontium Fluosilicate
      Strontium Stannate
      Strontium Orthoplumbate
      Strontium Titanate
      Strontium Zirconate
      Strontium Boride
      Strontium Borates
      Strontium Aluminates
      Strontium Ferrate
    PDB 1cs7-2spt
    PDB 2woh-4ds7

Strontium Nitrate, Sr(NO3)2

Strontium Nitrate, Sr(NO3)2, may be obtained by dissolving strontium hydroxide or carbonate in nitric acid and crystallising from the hot solution. It is prepared technically by precipitation from concentrated solutions of strontium chloride and sodium nitrate. It forms octahedra or cubic octahedra isodimorphous with strontium chlorate and of density 2.98 at 16.8° C. Its melting-point is 645° C. With potassium and sodium nitrates it forms a ternary eutectic mixture of melting-point 208.4° C., consisting of 9 equivalents of strontium, 50 of potassium, and 41 of sodium.

From a cold saturated solution the tetrahydrate, Sr(NO3)2.4H2O, separates out in monoclinic prisms of density 2.11 – 2.25. These melt in their water of crystallisation, which is readily lost at 100° C. It has also been stated that a dihydrate separates from cold solutions. It is probable that the transition temperature from the tetrahydrate to the anhydrous form is between 30° and 40° C., because at 32° C. both forms have been obtained by crystallisation from solution. The heat of solution of the anhydrous salt is 4.62 Cal., and of the hydrated -3.05 Cal. The heat of hydration is 7.68 Cal.

The following values for the solubility of strontium nitrate are compiled from various data: -

Temperature, ° C.-60102030406080100108
Parts Sr(NO3)2 in 100 parts water.32.539.559.068.087.691.394.097.2101103

The densities and boiling-points, the coefficients of expansion, the freezing-points, the viscosities, the refractive indices, and the equivalent conductivities of solutions of different concentrations have been studied.

Strontium nitrate is not very soluble in alcohol, one part dissolving in 8500 of alcohol. No compound is formed. The tetrahydrate is in equilibrium with solutions in dilute alcohol, but the anhydrous salt with solutions in concentrated alcohol.

Strontium nitrate dissolves to a considerable extent in liquid ammonia in which it is a good electrolyte.

The solubilities of strontium nitrate and hydroxide in presence of each other have been studied at 25° C., but no basic salts have been isolated.

Strontium nitrate is used in pyrotechnics for the production of red light.

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