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Strontium , Sr
Strontium is a chemical element with the symbol Sr and the atomic number 38. An alkaline earth metal, strontium is a soft silver-white or yellowish metallic element that is highly reactive chemically. The metal turns yellow and forms a dark, oxide layer when exposed to air. It occurs naturally in the minerals such as celestine and strontianite.
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Custom EnquirySr 6mm Pieces and smaller 99.9% Pure
Strontium
SrTiO3 1-6mm Pieces (melted) 99.9% Pure
Strontium Titanate
SrTaO 1-6mm Pieces (melted) 99.9% Pure
Strontium tantalum oxide
SrAl2O4 -100 Mesh 99.5% Pure
Strontium Aluminate
SrC2 -8 Mesh 99% Pure
Strontium Carbide
4.3 UN2813 PG I Dangerous when wet
SrCO3 -20 Mesh 99.999% Pure
Strontium Carbonate
SrCO3 -100 Mesh 99.5% Pure
Strontium Carbonate
SrCl2 -40 Mesh 99.5% Pure
Strontium Chloride
SrCrO4 -80 Mesh 99% Pure
Strontium Chromate
5.1 UN3085 PG II Oxidizer Corrosive
SrFe12O19 -325 Mesh (typ =10 microns) 99.5% Pure
Strontium Ferrite
SrF2 -200 Mesh (precipitated) 99.9% Pure
Strontium Fluoride
SrF2 -325 Mesh (typ. =10 microns) 99% Pure
Strontium Fluoride
SrGa2S4 -200 Mesh 99.9% Pure
Strontium Gallium Sulphide
SrMoO4 -200 Mesh 99.9% Pure
Strontium Molybdate
SrNb2O6 -200 Mesh 99.9% Pure
Strontium Niobate
Sr(NO3)2 -8 Mesh 99.999% Pure
Strontium Nitrate
5.1 UN1507 PG III Oxidizer
Sr3N2 -60 Mesh 99.5% Pure
Strontium Nitride
4.3 UN2813 PG I Dangerous when wet
SrO -100 Mesh 99.5% Pure
Strontium Oxide
SrSe -20 Mesh 99.5% Pure
Strontium Selenide
6.1 UN3283 PG III Toxic
SrSnO3 -200 Mesh 99.5% Pure
Strontium Stannate
SrSO4 -10 Mesh 99.9% Pure
Strontium Sulphate
SrS -100 Mesh 99.999% Pure
Strontium Sulphide
SrS -200 Mesh 99.9% Pure
Strontium Sulphide
SrTa2O6 -200 Mesh 99.9% Pure
Strontium Tantalate
SrTe -20 Mesh 99.5% Pure
Strontium Telluride
6.1 UN3288 PG III Toxic
SrTiO3 -200 Mesh 99.9% Pure
Strontium Titanate
SrWO4 -200 Mesh 99.9% Pure
Strontium Tungstate
SrZrO3 -100 +200 Mesh 99.5% Pure
Strontium Zirconate
SrZrO3 -150 +325 Mesh 99.5% Pure
Strontium Zirconate
SrZrO3 -325 Mesh +10 microns 99.5% Pure
Strontium Zirconate
SrZrO3 -325 Mesh (typ. =10 microns) 99.5% Pure
Strontium Zirconate
Sr Rod 12.7mm diameter 99.9% pure
Strontium
Strontium Sr,
Available Purities 99.9% & 99.99%
Strontium-Cobalt-Titanium-Iron oxide SrCo2Ti2Fe8O19,
Purity 99.5%
Strontium cobalt oxide SrCoO,
Available in various ratios wt% or at%, Purity 99.5% & 99.9%
Strontium Titanate SrTiO3,
Available Purities 99.9% & 99.99%
Strontium Lanthanum Aluminium oxide SrLaAlO4,
Purity 99.9%
Strontium-Iron oxide SrFe12O19,
Purity 99.9%
Strontium Ruthenium oxide SrRuO3,
Purity 99.9%
Strontium Vanadate SrVO3,
Purity 99.9%
Strontium Titanium Niobium oxide Sr-Ti-NbO3,
Available in various ratios wt% or at%, Purity 99.95%
Strontium Lanthanum Titanate Sr-La-TiO3,
Available in various ratios wt% or at%, Purity 99.9%
Strontium Molybdenum oxide SrMoO3,
Purity 99.9%
Strontium Titanate-Niobium SrTiO3-Nb,
Available in various ratios wt% or at%, Purity 99.99%
Strontium Manganese oxide SrMnO3,
Purity 99.9%
Strontium Titanate doped with Niobium SrTiO3-Nb,
Available in various ratios wt% or at%, Purity 99.95%
Strontium-Chromium-Rhenium oxide Sr2CrReO6,
Purity 99.95%
Strontium-Iron-Molybdenum oxide Sr2FeMoO6,
Purity 99.95%
Strontium oxide SiO, Purity 99.9%
Strontium Chromium oxide SrCrO3,
Purity 99.9%
Strontium Zirconium oxide SrZrO3,
Purity 99.9%
Strontium Cobalt Iron Oxide Sr-Co-FeO,
Available in various ratios wt% or at%, Purity 99.9%
SrTiO3 substrate 10mm x 10mm x 0.5mm Tk
Strontium titanate
In addition to its reactivity, strontium possesses unique properties that make it a versatile element with various practical applications. Strontium decomposes rapidly in water to produce strontium hydroxide and hydrogen gas. When exposed to air, strontium undergoes combustion, forming both strontium oxide and strontium nitride. However, the reaction with nitrogen occurs only at temperatures exceeding 380°C, resulting in the spontaneous formation of strontium oxide at room temperature. To prevent oxidation, strontium must be stored under kerosene, as freshly exposed strontium metal rapidly develops a yellowish hue due to oxide formation. Moreover, finely powdered strontium metal poses a fire hazard, as it can ignite spontaneously in air, highlighting its extreme reactivity.
The distinctive crimson colour imparted by volatile strontium salts to flames makes it invaluable in pyrotechnics and flare production. This characteristic flame colouration is exploited in various applications, ranging from fireworks displays to emergency signalling, where the vibrant hue serves as a visual indicator.
Natural strontium comprises a mixture of four stable isotopes, adding to its versatility and potential for various scientific and industrial applications. Despite its challenges in handling due to reactivity, strontium's unique properties make it a valuable element in a wide array of fields, from materials science to entertainment.