Sodium Aluminate – Industrial Chemical for Water Treatment and Construction
Introduction
Sodium Aluminate is an inorganic chemical compound used in water treatment, cement manufacturing, paper production, and various industrial processes. It is commonly supplied as a white powder, granules, or aqueous solution, depending on the product grade. Commercial Sodium Aluminate is valued for its alkaline properties and its ability to provide soluble aluminate for applications requiring pH adjustment, precipitation, or specialized chemical reactions.
Industrial Applications
Sodium Aluminate is widely used in water and wastewater treatment to support coagulation and phosphorus removal in suitable treatment systems. It can help improve treatment performance when used with other treatment chemicals under controlled conditions.
In the construction industry, Sodium Aluminate is used in selected cement and concrete formulations, including products designed to accelerate setting. It is also used in paper manufacturing, detergent formulations, and chemical processing. In alumina-related industrial processes, Sodium Aluminate serves as an important source of soluble aluminate. Its suitability depends on the process design and product specifications.
Key Benefits
Sodium Aluminate offers useful alkaline properties and provides a source of aluminate ions for various industrial applications. It can support selected water treatment processes, contribute to setting control in compatible cement formulations, and serve as a functional raw material in chemical manufacturing. Its effectiveness depends on concentration, dosage, process conditions, and compatibility with other ingredients.
Product Specifications
| Parameter | Specification |
|---|---|
| Product Name | Sodium Aluminate |
| Chemical Formula | NaAlO₂* |
| CAS Number | 11138-49-1* |
| Molecular Weight | 81.97 g/mol* |
| Appearance | Typically white powder or granules; solutions may also be available |
| Chemical Type | Inorganic sodium aluminium compound |
| Solubility | Soluble/reactive in water, depending on grade and formulation |
| Primary Function | Source of soluble aluminate and alkaline agent |
| Main Applications | Water treatment, cement, paper manufacturing, chemical processing |
| Packaging | Bags, drums, or bulk supply, depending on product form |
| Storage | Store in sealed, moisture-resistant packaging according to the SDS |
Note: Sodium Aluminate is commercially available in different compositions, including hydrated forms and products specified by sodium oxide and aluminium oxide content. CAS numbers, molecular weights, and properties may vary by form. Confirm the exact product identity and technical data sheet before purchase.
Storage and Handling
Sodium Aluminate is alkaline and can cause serious skin and eye burns. Handle it using appropriate protective equipment, including chemical-resistant gloves and eye or face protection, as specified in the supplier’s Safety Data Sheet (SDS). Avoid inhaling dust and prevent contact with skin and eyes. Store in compatible, tightly closed containers in a dry area, protected from moisture and incompatible materials. Follow established workplace procedures for spills, first aid, and disposal.
Quality and Supply
Sodium Aluminate is available in different commercial grades and physical forms for industrial applications. Buyers should verify the aluminium oxide content, sodium oxide content, alkalinity, physical form, packaging, and relevant technical documentation before ordering. Selecting the correct grade helps ensure compatibility with the intended treatment or manufacturing process.
Conclusion
Sodium Aluminate is a versatile industrial chemical used in water treatment, cement and concrete formulations, paper production, and chemical manufacturing. Its alkaline properties and aluminate content make it useful in processes requiring controlled chemical treatment. Appropriate grade selection, correct dosing, and safe handling are essential for consistent performance.
