Sodium Aluminate

High-Purity Sodium Aluminate (Solid 35#) for Industrial Excellence

Our 35# Sodium Aluminate is a high-quality, white granular solid designed for demanding industrial applications. Known for its high aluminum content and exceptional stability, this product is a preferred choice for water purification, paper manufacturing, and construction chemicals.

Key Advantages:

• Excellent Solubility: Dissolves quickly in water to form a stable, highly alkaline solution.
• High Reactive Content: Guaranteed Al2O3 ≥ 35.0% for maximum efficiency in chemical reactions.
• Ultra-Low Impurities: With iron content below 50ppm and insolubles under 0.10%, it ensures the purity of your final products.
• Optimized Molar Ratio: A controlled caustic ratio of 1.30 ± 0.05 ensures consistent performance in synthesis processes.

Technical Specifications (Model 35#)

Primary Applications:

1. Water Treatment: Acts as a high-efficiency inorganic coagulant for silica removal and phosphorus precipitation.
2. Construction: Widely used as a quick-setting agent (accelerator) in concrete and shotcrete.
3. Titanium Dioxide Industry: Used in the surface coating process of TiO2 to improve product durability.
4. Paper Industry: Functions as a sizing agent and filler retention aid.

Packaging & Storage

• Packaging: 25kg inner plastic and outer woven bags, or 1000kg jumbo bags. Custom packaging available upon request.
• Storage: Store in a cool, dry, well-ventilated warehouse. Keep bags tightly sealed to prevent moisture absorption due to its strong hygroscopicity. Once opened, it is recommended to use the product promptly to prevent clumping. Store away from strong acids and ammonium salts to avoid exothermic or hazardous chemical reactions.

Handling & Safety (PPE):

• Protective Gear: As this is a strongly alkaline substance, operators should wear alkali-resistant gloves, safety goggles, and protective clothing.
• Respiratory Protection: In dusty environments, use a certified dust mask to avoid inhalation of particles.
• First Aid: In case of skin or eye contact, immediately flush the affected area with plenty of running water for at least 15 minutes and seek medical attention.

Quality Assurance & Commitment

At WaterCareChem, we prioritize consistency and chemical precision. Our 35# Sodium Aluminate undergoes a rigorous multi-stage quality control process to ensure it meets the demanding standards of the water treatment and construction industries.

• Batch Traceability: Every shipment is assigned a unique batch number, with retained samples kept for 12 months for full traceability.
• Certificate of Analysis (COA): A detailed COA is provided with every delivery, confirming that Al2O3 levels, Iron content (Fe), and the Caustic Ratio meet your specific requirements.
• Purity Standards: We utilize advanced filtration technology to maintain water-insoluble matter below 0.10%, ensuring no clogging in your dosing systems.
• Third-Party Testing: Upon request, we can provide independent testing reports from recognized labs to verify compliance with international standards.

Frequently Asked Questions (Technical Support)

Q1: What is the significance of the “35#” model in Sodium Aluminate?

The “35#” designation refers to the minimum Aluminum Oxide (Al2O3) content, which is guaranteed to be ≥35.0%. This is the primary metric used in the industry to determine the strength and dosage requirements of the product. A higher Al2O3 content means more reactive aluminum is available for coagulation or chemical synthesis.

Q2: Why is the caustic ratio (1.30 ± 0.05) important?

The caustic ratio (the molar ratio of Na2O to Al2O3) determines the chemical stability of the solution once the solid is dissolved. A controlled ratio of 1.30 ± 0.05 ensures that the product remains stable in aqueous form and does not prematurely precipitate into Aluminum Hydroxide, which can clog dosing pumps and reduce efficiency.

Q3: How do I properly dissolve solid Sodium Aluminate for application?

To prepare a working solution:

1. Fill the mixing tank with water (preferably slightly warm, 20 ℃ to 40℃ to speed up dissolution).
2. Start the mechanical agitator.
3. Slowly add the Sodium Aluminate powder/granules to the water.
4. Continue stirring until the solution is clear. Note: Always add the chemical to water, never water to the chemical, to avoid localized heat buildup.

Q4: In which applications is “Low Iron” (≤50ppm) content critical?

Low iron content is essential for industries where color purity is vital. This includes:

• Titanium Dioxide (TiO2) Production: For surface coating without yellowing.
• High-End Paper Manufacturing: To maintain the whiteness and brightness of the paper.
• Specialty Zeolite Synthesis: Where iron impurities can poison the catalyst.

Q5: Can Sodium Aluminate be used for phosphorus removal in wastewater?

Yes. Sodium Aluminate is highly effective for chemical phosphorus precipitation. Unlike Acidic Coagulants (like Alum or Ferric Chloride), it adds alkalinity to the water, which can be a major advantage in systems where the influent pH is already low, potentially saving the cost of adding extra lime or caustic soda.

Q6: Is this product compatible with all storage materials?

No. Because Sodium Aluminate is strongly alkaline (pH ≥ 12.0), it is incompatible with copper, aluminum, and galvanized surfaces. We recommend using storage tanks and piping made of Stainless Steel (304 or 316L), Carbon Steel with epoxy lining, or high-density plastics like HDPE/FRP.

Free samples available for quality testing. Contact us now to discuss your specific project requirements!