Overview
Lead disilicate (PbSi2O5) is an inorganic compound primarily used in industrial applications such as glass and ceramics. It is known for its high density and thermal stability, making it suitable for specialized manufacturing processes. This compound is typically produced through high-temperature reactions between lead oxide and silicon dioxide. Its insoluble nature and chemical inertness contribute to its durability in harsh environments.
Physical and Chemical Properties
Lead disilicate appears as a white or off-white crystalline powder with a density of approximately 6.5 g/cm³. It is insoluble in water and most organic solvents, which enhances its stability in various applications. The compound exhibits excellent thermal resistance, though specific melting and boiling points are not well-documented. Its chemical inertness makes it resistant to reactions with acids and bases under normal conditions.
Main Applications
The primary use of lead disilicate is in the production of specialty glasses, particularly those requiring high density and radiation shielding. It is also employed in ceramic glazes and electronic components where thermal stability is critical. In the electronics industry, lead disilicate serves as a dielectric material and in the fabrication of certain types of capacitors. Its properties make it valuable in niche applications where alternative materials may not perform as effectively.
Safety and Storage
Due to its lead content, lead disilicate is toxic and must be handled with appropriate personal protective equipment (PPE), including gloves and respirators. Ingestion or inhalation can lead to serious health effects. Storage should be in a cool, dry environment, sealed to prevent moisture absorption. Containers must be clearly labeled, and the compound should be kept away from acids to avoid potential reactions.
B2B Procurement Guide
When procuring lead disilicate, verify the CAS number (10099-76-0) and request certificates of analysis to confirm purity levels. Reputable suppliers should provide material safety data sheets (MSDS) and comply with local regulations. Prices vary based on purity and quantity, typically ranging from $50 to $150 per kilogram. Buyers should consider logistical factors such as packaging and transportation safety due to the compound's toxicity.
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