Caustic Soda Flakes 99% Pure Industrial Alkali Supply

Caustic Soda Flakes serve as an essential foundation in modern chemical manufacturing, enabling efficiency and precision across both heavy industrial facilities and specialized blending operations. Manufactured via state-of-the-art membrane chlor-alkali electrolysis, our product undergoes rigorous evaporation and flaking processes to achieve superior chemical consistency. The uniform thin-flake profile maximizes surface area contact, accelerating dissolution rates and eliminating extended agitation cycles in high-volume batch preparation tanks.

Comprehensive Technical Specifications

• Chemical Formula Base: Strong Inorganic Alkali Solid

• Physical Appearance: Odorless, snow-white crystalline flakes

• CAS Registry Number: 1310-73-2

• EC Number: 215-185-5

• Purity Concentration: 99.0% Minimum Active Base

• Sodium Carbonate (Na2CO3): 0.4% Maximum

• Sodium Chloride (NaCl): 0.03% Maximum

• Iron Content (Fe): 10 ppm Maximum (Ultra-low iron grade)

• Melting Point: 318 °C (504.4 K)

• Boiling Point: 1388 °C (1661 K)

• Hydration Behavior: Highly exothermic upon dissolution in aqueous solutions

Key Performance and Processing Advantages

1. Rapid Liquefaction and High Solubility: The flat, thin geometry provides an optimized surface-area-to-mass ratio, allowing the flakes to dissolve completely in ambient or warm liquid streams without leaving gritty sediments or undissolved solids.

2. Ultra-Low Impurity Profile: Strict quality control during membrane separation limits carbonate precipitation and heavy metal contamination, protecting downstream catalysts and preventing clogging in fine spray nozzles or automated dosing pumps.

3. High Thermal Exothermic Output: Generates substantial heat energy during dissolution, which assists in warming process solutions and driving saponification or digestion reactions without requiring excessive external steam heat.

4. Excellent Shelf Stability: Processed under dry atmospheric conditions to minimize moisture uptake during packaging, ensuring long shelf life when stored in original unopened containers.

Broad Industrial Application Sectors

• Pulp and Paper Manufacturing: Functions as a key cooking chemical in Kraft pulping processes, dissolving lignin binders to liberate cellulose fibers required for high-strength paper stock and packaging materials.

• Soap, Detergent, and Surfactant Production: Acts as a vital reagent for converting tallow, plant lipids, and fatty acid distillates into soluble alkali salts, serving as the core ingredient in hard soap bars, industrial cleaning solutions, and heavy-duty degreasers.

• Municipal Water and Industrial Effluent Treatment: Deployed in automated neutralization systems to elevate pH levels, neutralize acidic industrial wastewater streams, precipitate heavy metal ions, and regenerate ion-exchange resin columns in water softening plants.

• Textile Scouring and Cotton Mercerization: Utilized in fabric finishing to strip natural waxes and pectin from raw cotton fibers, increasing tensile strength, improving dye absorption, and granting a silky luster to finished textiles.

• Alumina Refining and Bauxite Processing: Essential in the Bayer process for digesting crude bauxite ore at elevated temperatures, extracting soluble sodium aluminate to prepare high-purity alumina for aluminum metal smelting.

• Chemical Synthesis and Petrochemical Processing: Serves as a versatile chemical base for synthesizing organic sodium salts, manufacturing polycarbonate resins, formulating industrial drain openers, and scrubbing acidic hydrogen sulfide gases from petroleum streams.

Heavy-Duty Packaging, Shipping, and Handling Protocols

To ensure maximum product protection during transoceanic shipping and extended storage, our Caustic Soda Flakes are packed in heavy-duty 25kg multi-wall polypropylene (PP) woven sacks fitted with a heat-sealed inner polyethylene (PE) liner that forms an impermeable moisture barrier.

• Storage Conditions: Store in a cool, dry, dark, well-ventilated dedicated chemical warehouse. Keep sacks tightly sealed away from atmospheric humidity, open rainwater, acids, and reactive light metals such as aluminum, zinc, tin, or brass to avoid hazardous hydrogen gas generation.

• Occupational Safety Precautions: Classified as a Class 8 Corrosive substance (UN 1823, Packing Group II). Operational personnel must wear full personal protective equipment (PPE), including chemical splash goggles, full face shields, heavy rubber aprons, safety boots, and alkali-resistant nitrile or neoprene gloves during bag handling, feeding, and solution mixing.

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