Description

Sodium Aluminate is an important inorganic chemical compound widely used as a versatile source of aluminate ions. Its primary value lies in its dual functionality as an effective precipitating agent and a strong alkaline source, making it indispensable in water treatment and various industrial processes. Key industries that rely on this product include municipal and industrial water purification, paper manufacturing, construction, and catalyst production.

Application

• Water & Wastewater Treatment: Acts as a highly effective coagulant and flocculant for removing suspended solids, phosphates, and color bodies.
• Paper Industry: Used in sizing processes to improve paper's resistance to water and ink penetration.
• Construction Material: Serves as an accelerating additive in concrete formulations to reduce setting time and enhance early strength.
• Catalyst & Zeolite Production: A key raw material in the synthesis of zeolites and other alumina-based catalysts.
• Textile Processing: Employed as a mordant in dyeing to improve color fastness on fabric.
• Soap & Detergent Manufacturing: Functions as a builder to soften water and improve cleaning efficiency.

Basic Information

Product Name	Sodium Aluminate
CAS No.	11138-49-1
Molecular Formula	NaAlO₂ / Na₂Al₂O₄
Molecular Weight	81.97 g/mol (NaAlO₂)
Synonyms	Sodium Metaaluminate; Aluminate, Sodium; Sodium Aluminum Oxide; Sodium Alumina; Aluminic Acid, Sodium Salt; Sodium Oxido(oxo)aluminum; Sodalite (related mineral form)
EINECS	234-391-6

Quality Control

Our Sodium Aluminate is manufactured under strict quality management systems to ensure batch-to-batch consistency and reliability. We provide comprehensive quality assurance, including testing for key parameters such as Al₂O₃ content, Na₂O content, and insoluble matter. A Certificate of Analysis (COA) is supplied with each shipment, confirming the product meets agreed specifications and relevant industrial standards.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a cool, dry, and well-ventilated area. Recommended storage temperature is between 15°C and 25°C. Keep away from incompatible materials such as strong acids.

Specification

Item	Specification
Appearance	White to off-white powder or solid
Identification (IR)	Conforms
Assay (as Al₂O₃)	Min. 50.0% - 55.0%
Sodium Oxide (Na₂O) Content	30.0% - 35.0%
Molar Ratio (Na₂O:Al₂O₃)	1.05 - 1.50
Insoluble Matter in Water	Max. 1.0%
Iron (Fe)	Max. 0.05%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.