Sodium Aluminate CAS 1302-42-7

2.Physical and Chemical Properties

• Appearance: White crystalline powder (solid grade); colorless to white solution (liquid grade)
• Melting point: Decomposes at high temperature (approximately 1650 °C)
• Density: Approximately 1.5–1.6 g/cm³
• Solubility: Soluble in water, forming a strongly alkaline solution; insoluble in ethanol
• Stability: Strongly alkaline and hygroscopic; store sealed and away from moisture

3.Main Functions and Applications (What are its uses?)

• Water treatment (core application): Used as a coagulant and flocculant for drinking water and wastewater treatment, especially for phosphorus removal and turbidity reduction.
• Papermaking: Serves as a sizing agent and filler additive in the paper industry.
• Construction materials: Acts as a set accelerator for shotcrete and concrete, a grinding aid for cement, and an expansion agent.
• Catalysts and molecular sieves: A key raw material for zeolite (molecular sieve) synthesis and for refinery catalysts.
• Alumina and aluminum hydroxide production: An intermediate in the Bayer process and a raw material for aluminum hydroxide and alumina manufacture.
• Titanium dioxide post-treatment: Applied as a surface-treatment agent in pigment production. Detergents, soaps and textiles: Used as a builder in detergents and as a mordant in textile processing. Oil-well cement accelerator: Employed to accelerate setting in oil-well cementing operations.

4.A Benchmark-Level Industrial Masterpiece - A Meticulously Crafted "Water-Treatment-Grade" Cornerstone Aluminate!

High Na2O and Al2O3 content with a tightly controlled Na2O/Al2O3 molar ratio ensure consistent coagulation performance.

Low water-insoluble matter and low iron content deliver a clean, high-purity product suitable for drinking-water treatment.