Caustic Soda Beads, Caustic Soda, Beaded Caustic Soda, Sodium Hydroxide, Prills, Pearls, NaOH, 1310-73-2

Beaded Caustic Soda (Sodium Hydroxide - NaOH)

Beaded Caustic Soda, chemically known as Sodium Hydroxide (NaOH) , is a strategic inorganic compound essential to industries ranging from textiles and pulp & paper to food processing and pharmaceuticals. Its distinctive white, spherical "prill" or "pearl" form offers superior handling characteristics compared to flakes or powder, including lower dust generation, excellent flowability, and slower moisture absorption.

Here is the definitive guide to Sodium Hydroxide Pearls, covering chemical identity, the intricate manufacturing process (Prilling), industrial applications, and critical safety protocols.

Chemical Identity & Technical Specifications

Industry Insight: Beaded caustic soda is preferred in automated batching systems. Unlike flakes, beads do not "bridge" or clog feeding hoppers, ensuring consistent industrial dosing.

How is Beaded Caustic Soda Made? Step-by-Step Manufacturing Process

The production of beaded caustic soda relies on the Chlor-Alkali Membrane Cell Process followed by a specialized solidification technique known as Prilling.

1. Feedstock Purification: Brine Preparation

• Raw Material: Refined Sodium Chloride (NaCl / Salt).

• Process: Salt is dissolved in water to create a near-saturated brine solution.

• Purification: The brine undergoes rigorous chemical treatment to precipitate impurities like Calcium (Ca²⁺) and Magnesium (Mg²⁺) ions, which are detrimental to ion-exchange membranes.

2. Electrolysis: The Membrane Cell

• Purified brine is fed into an electrolyzer equipped with a selective Ion-Exchange Membrane.

• Direct Current (DC) is applied.

• Core Reaction: 2NaCl + 2H₂O → 2NaOH + Cl₂ (Chlorine Gas) + H₂ (Hydrogen Gas).

• Output: The process yields a 32% liquid caustic soda solution (diaphragm cell quality).

3. Concentration: Evaporation to Melt

• The 32% solution is fed into multi-effect evaporators using steam to concentrate the solution to approximately 50% .

• The 50% solution is then sent to a Molten Salt Heater or Direct-Fired Furnace to drive off remaining water until the material reaches anhydrous melt state (99% purity, >320°C).

4. The Prilling Process (Creating the Beads)

This is the critical stage that differentiates beads from flakes.

• Prilling Tower: The molten anhydrous NaOH is pumped to the top of a tall cylindrical tower (often 20-50 meters high).

• Droplet Formation: The liquid is forced through a rotating perforated basket or vibrating nozzle head. Surface tension causes the falling liquid to form perfect spherical droplets.

• Counter-Current Cooling: As the droplets fall, they encounter an upward flow of dry, chilled, CO₂-free air. The droplets solidify into hard, smooth beads before reaching the bottom of the tower.

• Screening: The beads are then screened to ensure uniform size distribution (typical mesh size 16-40).

5. Packaging & By-Product Utilization

• Packaging: Due to extreme hygroscopic nature (attracts moisture), beads are packed in 25 kg multi-wall paper bags with an inner polyethylene (PE) liner or HDPE drums with desiccant seals.

• By-Products:

  • Chlorine Gas (Cl₂): Used for PVC production and water disinfection.

  • Hydrogen Gas (H₂): Used as a clean fuel or in hydrogenation processes.

Industrial Grade Compliance Matrix

Selecting the correct grade of NaOH is critical for regulatory compliance. Below is the benchmark table for procurement professionals.

Critical Note for Food & Pharma: Mercury-Cell Grade caustic soda is strictly prohibited for food or drug applications. Only Membrane Grade with heavy metal analysis certificates is acceptable.

Safety, Handling, and Storage (SDS Summary)

Sodium Hydroxide is a Corrosive Substance. Adherence to strict safety protocols is non-negotiable.

• Personal Protective Equipment (PPE):

  • Eyes: Tight-fitting chemical splash goggles + Face Shield.

  • Hands: Butyl rubber or Neoprene gauntlets.

  • Body: Acid/Alkali resistant apron or coveralls.

• The Golden Rule of Dilution:

  • ALWAYS ADD CAUSTIC TO WATER.

  • NEVER ADD WATER TO CAUSTIC.

  • Reasoning: Adding water to solid caustic generates extreme local heat, causing the water to instantly boil and splash concentrated corrosive liquid violently.

• Incompatible Materials:

  • Metals: Never store or handle with Aluminum, Zinc, Brass, or Tin. Reaction with these metals generates flammable Hydrogen Gas.

  • Storage Tanks: Recommended materials include Carbon Steel (up to 50°C) or Stainless Steel 316L. For long-term storage of concentrated solutions, FRP (Fiberglass Reinforced Plastic) is preferred.

Frequently Asked Questions (FAQ)

1. What is the difference between Caustic Soda Pearls (Beads) vs. Flakes?

• Pearls/Beads: Spherical shape ensures no dust, free-flowing, dissolves faster and more evenly than flakes. Ideal for automated dispensing systems.

• Flakes: Higher surface area but prone to caking and breaking into powder (dust hazard).

2. How much heat is generated when dissolving NaOH beads?
Dissolving 1 kg of NaOH beads in 2 liters of water will raise the temperature of the solution to nearly 90-100°C (194-212°F) almost instantly. Always use ice-cold water or a jacketed cooling vessel when making large batches of concentrated solution.

3. What is the shelf life of Beaded Caustic Soda?
If stored in original, unopened, moisture-proof bags, the shelf life is theoretically indefinite. However, once opened, it begins absorbing Carbon Dioxide (CO₂) from the air, converting to Sodium Carbonate (Na₂CO₃) . Open bags should be used within weeks to maintain assay purity (>98%).

4. What is the standard packaging for export?
Standard export packaging is 25 kg (55.1 lbs) net weight, bagged in Laminated PP/PE Woven Bags with an inner Aluminum Foil moisture barrier. 1 FCL (20ft Container) typically holds 20-25 Metric Tons palletized.

Conclusion: Why Choose Beaded Caustic Soda?

• Operational Efficiency: Perfect flow characteristics eliminate downtime caused by feeder clogging.

• Occupational Safety: Virtually dust-free handling reduces inhalation risks for plant operators.

• High Purity: Membrane-grade beads offer >99% assay, minimizing impurities in sensitive chemical reactions.

• Logistics: Solid form reduces freight cost compared to shipping water weight in liquid caustic (50% solution).

Disclaimer: This document is for informational purposes only. Always consult the manufacturer's Safety Data Sheet (SDS) before handling this chemical.

Beaded Caustic Soda (NaOH): Usage Ratios, Sectoral Applications & Alternative Names | Best Price at Betakim

When working with Sodium Hydroxide (NaOH) , precision in dilution ratios is critical for both safety and process efficiency. Whether you are in textile, food processing, or heavy-duty industrial cleaning, using the correct concentration determines the quality of the output.

Below you will find the definitive guide to Application Dosages, Industry-Specific Ratios, Common Synonyms, and why Betakim is the preferred supplier for high-quality, cost-effective solutions.

Detailed Usage Ratios & Sectoral Application Guide

Safety First: Always wear full PPE. Always add Caustic Soda Beads slowly to cold water, stirring continuously. Never add water to solid caustic.

Other Names & Synonyms for Beaded Caustic Soda

In the global chemical market and industrial lexicon, this product is known by various names. Using the correct terminology ensures you receive the exact product specification you need.

• English Synonyms:

  • Sodium Hydroxide Pearls

  • Sodium Hydroxide Prills

  • Caustic Soda Beads

  • Solid Caustic Soda

  • NaOH Solid

• Industrial Grade Acronyms & Terms:

  • Membrane Grade NaOH (Indicates the cleanest production method, essential for food/pharma).

  • Food Grade Lye (Specific to FCC certified product).

• Turkish Synonyms (Türkçe Karşılıkları):

  • Boncuk Kostik (Most common technical term).

  • Kostik Boncuk

  • Sud Kostik (Solid caustic).

  • Sodyum Hidroksit Peleti

Sectoral Applications: A Quick Reference Matrix for Betakim Customers

This table is designed to help procurement managers and engineers quickly identify the right product for their specific process.

Best Quality & Most Competitive Pricing: Why Choose Betakim?

When sourcing a high-volume commodity chemical like Sodium Hydroxide, the balance between purity and price per metric ton defines your operational margin. Here is why Betakim is the market leader for Beaded Caustic Soda.

1. Guaranteed "Membrane Grade" Quality

Unlike cheaper "Diaphragm Grade" or (obsolete) "Mercury Grade" imports, Betakim exclusively supplies Membrane Grade Beaded Caustic Soda. This ensures:

• Lower Chloride Content: Prevents pitting corrosion in stainless steel equipment.

• Lower Iron (Fe) Content: Essential for white textiles and clear soap bases.

• Compliance: Ready for REACH and HACCP certified facilities.

2. The Betakim Price Advantage

In a market driven by energy costs and currency fluctuation, Betakim offers:

• Direct Sourcing: As a primary distributor, we eliminate intermediary markups.

• Logistics Optimization: We offer flexible delivery options (Full Truck Load, LTL, and Palletized Container Loading) to minimize your landed cost.

• Price Stability: We offer Spot Price for immediate delivery and Contract Pricing for quarterly or annual budget security.

3. Supply Chain Reliability

• Stock Availability: We maintain high-volume warehouse stock to prevent disruption in your production line.

• Packaging Options: 25 kg PE-Lined Bags (Standard) or 1000 kg Big Bags (FIBC) for bulk users.

4. Technical Support

Our team includes chemical engineers who can assist with:

• Dilution heat calculations.

• Storage tank material compatibility.

• Safety Data Sheet (SDS) training for your operators.

Contact Betakim Today

Looking for Beaded Caustic Soda, Sodium Hydroxide Pearls, or Food Grade Lye?
For the Best Quality at the Most Competitive Price, your search ends at Betakim.

Request a Quote Today for Current Spot Prices and Volume Discounts.