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Strontium chloride is a chemical compound with the molecular formula SrCl₂. It is composed of one strontium (Sr) atom and two chlorine (Cl) atoms. Strontium is an alkaline earth metal, and chloride is a halogen. Strontium chloride (SrCl2) is a salt of strontium and chloride. It is a 'typical' salt, forming neutral aqueous solutions. As with all compounds of strontium, this salt emits a bright red color in flame and is commonly used in fireworks to that effect. Its properties are intermediate between those of barium chloride, which is more toxic, and calcium chloride.
Strontium chloride has a variety of uses, primarily due to the properties of strontium itself.
Some of its applications include:
Pyrotechnics and Fireworks: Strontium compounds, including strontium chloride, are often used in pyrotechnics and fireworks to produce red-colored flames. When burned, strontium emits a vibrant red color, which is a popular choice for creating visually appealing firework displays.
Flame Test Demonstrations: Strontium chloride is commonly used in chemistry demonstrations known as flame tests. By introducing a small amount of the compound into a flame, the characteristic red color of strontium is observed, helping to identify the presence of strontium in a sample.
Medical Imaging: Strontium compounds, including strontium chloride, have been used in medical imaging. Strontium-89, a radioactive isotope of strontium, has been utilized for palliative treatment of bone pain associated with metastatic cancer. It emits beta radiation that can help alleviate pain caused by cancer that has spread to the bones.
Strontium Ferrite Magnets: Strontium chloride is also used in the production of strontium ferrite magnets. These magnets are used in various applications, including loudspeakers, refrigerator magnets, and magnetic stripe cards (such as credit cards and ID cards).
Chemical Synthesis: Strontium chloride can serve as a source of strontium ions in chemical reactions and synthesis. It is used as a precursor in the preparation of other strontium compounds.
Electroplating: Strontium chloride has been used in electroplating processes, where a thin layer of strontium is deposited onto the surface of an object, often for decorative or protective purposes.
Ceramics and Glass: Strontium compounds can be incorporated into ceramics and glass to modify their properties, such as improving the refractive index, electrical conductivity, or color.
It's important to note that some applications of strontium compounds involve radioactive isotopes, which require careful handling and regulation due to their potential health and environmental hazards. Always follow appropriate safety precautions when working with or around chemicals.
Formula: SrCl2 · 6H2O
Molar Mass: 266.62 g/mol
Form: White crystalline solid
CAS Number: 10025-70-4
EC Number: 233-971-6
Density: 1.930 g/cm³
Synonyms: Strontium dichloride, strontium;dichloride, Strontiumchloride, CHEBI:36383, Dichlorostrontium
Unveiling the Properties and Applications of Strontium
- Brand: Degussa
- Product Code: Oxide - Strontium chloride
- SKU: SrCl2
- Availability: 555