Knowra Sodium aluminate Sodium aluminate Sodium aluminate is an inorganic sodium–aluminum compound, commonly represented as NaAlO₂. It supplies soluble aluminate in industrial processes including water treatment and cement production.
Aluminate ion : An aluminum-centered oxyanion, commonly represented in solution as Al(OH)₄⁻ under strongly alkaline conditions. Dissolution of sodium aluminate supplies this soluble aluminum species.
Water treatment : The treatment of water to make it suitable for drinking, industrial use, or discharge. Sodium aluminate is used as an aluminum coagulant and alkalinity source.
Sodium : A soft, highly reactive alkali metal with atomic number 11. Sodium supplies the cation in sodium aluminate and contributes its alkalinity.
Aluminum sulfate : An aluminum salt, Al₂(SO₄)₃, widely used as a coagulant in water treatment. Unlike sodium aluminate, it consumes alkalinity and introduces sulfate.
Aluminum hydroxide : An amphoteric aluminum compound, Al(OH)₃, that dissolves in both acidic and strongly alkaline solutions. When treatment water is neutralized, aluminate can form this precipitating solid.
Cement : A powdered hydraulic binder that hardens through reactions with water and binds construction materials. Sodium aluminate can accelerate setting and influence early strength in cement formulations.
Aluminum : A lightweight metallic element with atomic number 13 that forms stable oxide and hydroxide compounds. Aluminum is the central element responsible for sodium aluminate’s coagulating chemistry.
Polyaluminum chloride : A family of partially hydrolyzed aluminum chloride coagulants used in water and wastewater treatment. It is a prehydrolyzed alternative that often performs across a broader pH range.
Coagulation : A water-treatment process that destabilizes suspended particles so they aggregate and can be removed. Aluminum species released from sodium aluminate help destabilize particles.
Sodium aluminate catalyst : A sodium aluminate material used to promote selected chemical reactions as a heterogeneous catalyst. Its basic and aluminum-containing sites support specialized industrial catalytic uses.
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