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Delving into the World of Strontium Carbonate (SrCO₃)



Strontium carbonate (SrCO₃), a white, odorless inorganic compound, holds a significant place in various industrial applications. This article aims to provide a comprehensive overview of SrCO₃, exploring its properties, production methods, diverse uses, safety considerations, and environmental impact. Understanding SrCO₃ is crucial for appreciating its role in modern technology and industry.

1. Properties of Strontium Carbonate



SrCO₃ is a crystalline solid characterized by its low solubility in water, a key property influencing its applications. Its chemical formula reflects its composition: one strontium atom (Sr), one carbon atom (C), and three oxygen atoms (O). Key physical properties include:

Appearance: White, odorless powder.
Molar mass: 147.63 g/mol.
Density: Approximately 3.7 g/cm³.
Melting point: 1,340 °C (2,444 °F), decomposing before melting.
Solubility: Insoluble in water but soluble in dilute acids. This acid solubility is crucial for its processing and use in various reactions.

These properties contribute to its effectiveness in its various applications, as detailed below.

2. Production of Strontium Carbonate



The primary source of strontium for SrCO₃ production is strontianite (SrCO₃) mineral ore. However, celestite (SrSO₄) is more abundant and often serves as the starting material. The production process generally involves:

Mining and processing of strontianite or celestite: This involves extraction from the earth, followed by purification and concentration to obtain a high-purity strontium-containing source.
Conversion of celestite to strontium carbonate: If celestite is the starting material, it undergoes a chemical conversion process. A common method involves reduction with carbon to form strontium sulfide (SrS), which is then reacted with carbon dioxide (CO₂) to yield strontium carbonate:

SrSO₄ + 4C → SrS + 4CO
SrS + CO₂ + H₂O → SrCO₃ + H₂S

This process requires careful control of reaction parameters to maximize yield and purity.

3. Applications of Strontium Carbonate



The versatility of SrCO₃ stems from its properties and its ability to act as a precursor for other strontium compounds. Its key applications include:

Pyrotechnics: SrCO₃ imparts a brilliant red color to fireworks and flares, due to the characteristic emission spectrum of strontium ions when heated. The low solubility and stability of SrCO₃ make it a safe and effective colorant.

Ferrites: SrCO₃ is a crucial component in the production of strontium ferrites, used in high-performance magnets and magnetic recording media. These magnets find widespread use in various electronic devices.

Glass and Ceramics: SrCO₃ enhances the optical properties of glass, contributing to its brilliance and clarity. It also acts as a flux in ceramic glazes, facilitating sintering and improving the final product's strength and durability.

Cathode Ray Tubes (CRTs): While CRTs are becoming obsolete, SrCO₃ was historically used to produce strontium oxide (SrO), a component in the glass used in CRT screens.

Other applications: SrCO₃ is also employed in the production of various strontium salts, catalysts, and specialty chemicals.


4. Safety and Environmental Considerations



While generally considered non-toxic in its solid form, precautions are necessary when handling SrCO₃. Inhalation of dust can cause respiratory irritation, therefore, appropriate respiratory protection should be used. Disposal should follow local regulations to avoid environmental contamination. Although strontium is a relatively less toxic element compared to some heavy metals, its accumulation in the environment should be minimized.


5. Conclusion



Strontium carbonate, a seemingly simple inorganic compound, plays a vital role in a diverse range of industrial processes. Its unique properties, including its low solubility and its ability to act as a precursor for other strontium compounds, make it an essential component in pyrotechnics, magnets, glass manufacturing, and other industries. Understanding its production, applications, and safety aspects is crucial for sustainable and responsible utilization of this important material.


FAQs



1. Is strontium carbonate harmful to human health? In its solid form, SrCO₃ is not considered highly toxic. However, inhalation of dust can cause respiratory irritation. Skin contact should be avoided, and appropriate safety measures should be employed during handling.

2. What is the difference between strontium carbonate and strontium sulfate? Strontium carbonate (SrCO₃) and strontium sulfate (SrSO₄) are both strontium compounds but differ significantly in their chemical properties and solubility. SrCO₃ is more reactive and soluble in acids than SrSO₄.

3. What are the environmental concerns associated with SrCO₃? While not highly toxic, excessive release of SrCO₃ into the environment should be avoided. Proper disposal procedures are essential to prevent contamination of soil and water resources.

4. Can strontium carbonate be recycled? While not commonly recycled on a large scale, depending on the application, recovery and reuse of strontium from waste materials is a potential area for future research and development.

5. Where can I purchase strontium carbonate? Strontium carbonate can be purchased from various chemical suppliers, both online and offline. It's important to ensure that the supplier provides high-purity material that meets the required specifications for its intended use.

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Strontium carbonate, 99.99% (metals basis), Thermo Scientific … Used as a colorant in fireworks. It is also used in ceramics industry. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand.

Strontium carbonate - Wikipedia Strontium carbonate (SrCO 3) is the carbonate salt of strontium that has the appearance of a white or grey powder. It occurs in nature as the mineral strontianite. Strontium carbonate is a white, odorless, tasteless powder. Being a carbonate, it is a weak base and therefore is reactive with acids. It is otherwise stable and safe to work with.

Synthesis of SrTiO3 by the Calcination of SrCO3 and TiO2 … 27 Mar 2020 · A SrTiO3 electroceramic with perovskite structure was produced by the calcination of a mixture of SrCO3 and TiO2 intensively grounded by high energy milling.

SrCO3 - Wikipedia Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file

XRD patterns (a) and SEM images of SrCO3 prepared by b … Strontium carbonate (SrCO3) nanostructures with different morphology from bundles of nanorods to branchlet-like were synthesized by a simple and cost effective wet chemical method.

Strontium carbonate = 98 1633-05-2 - MilliporeSigma Strontium carbonate is used in pyrotechnics, ceramic ferrites, inexpensive fireworks colorant. Don't see the Right Version? If you require a particular version, you can look up a specific certificate by the Lot or Batch number. Already Own This Product? Find documentation for the products that you have recently purchased in the Document Library.

SAFETY DATA SHEET - Fisher Sci Indication of any immediate medical attention and special treatment needed . Treat symptomatically.

Strontium carbonate | SrCO3 | CID 15407 - PubChem Strontium carbonate | SrCO3 or CO3Sr | CID 15407 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.

Strontium Carbonate (SrCO3) UK Supplier - Thermograde Strontium carbonate (SrCO3) is the carbonate salt of strontium that has the appearance of a white or grey powder. It occurs in nature as the mineral strontianite. Strontium carbonate is a white, odorless, tasteless powder. Being a carbonate, it is a weak base and therefore is …

SrCO3 - Strontium carbonate - MilliporeSigma Strontium carbonate ≥96%, white; CAS Number: 1633-05-2; EC Number: 216-643-7; Synonyms: Strontium(II) carbonate; Linear Formula: SrCO3 at Sigma-Aldrich