Overview
High pH silica, or silicon dioxide with a pH exceeding 9, is a specialized form of silica used in industries requiring alkaline conditions. It is chemically stable under high pH and finds applications in catalysts, coatings, and chemical manufacturing. This material is distinct from standard silica due to its alkaline properties, which make it suitable for specific industrial processes. Its production involves controlled conditions to achieve the desired pH level without compromising its structural integrity.
Physical and Chemical Properties
High pH silica appears as a white powder or granules, with a density of approximately 2.2 g/cm³. It is insoluble in water but can dissolve in alkaline solutions, making it ideal for use in high-pH environments. The material’s key property is its stability under alkaline conditions, which allows it to maintain its structure and functionality in applications where standard silica would degrade. This makes it a preferred choice for industries requiring durable alkaline-resistant materials.
Main Applications
High pH silica is primarily used in the production of catalysts, where its alkaline nature enhances chemical reactions. It is also employed in coatings and adhesives that require resistance to alkaline environments. Another significant application is in the manufacturing of specialized chemicals, where it acts as a stabilizer or filler. Its ability to withstand high pH levels makes it invaluable in processes involving strong bases or alkaline solutions.
Safety and Storage
Handling high pH silica requires precautions due to its alkaline nature. Protective gear, such as gloves and goggles, should be worn to prevent skin and eye irritation. Storage should be in a cool, dry place, away from acidic substances that could neutralize its alkalinity. Proper labeling and segregation from incompatible materials are essential to ensure safety and material integrity.
B2B Procurement Guide
When procuring high pH silica, buyers should verify the pH level and purity specifications to ensure it meets their application requirements. Suppliers should provide detailed product data sheets and safety information. Price varies based on purity and quantity, so buyers should compare offers from multiple suppliers. Bulk purchases may attract discounts, but storage capacity and shelf life should also be considered to avoid material degradation.
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