Supplier of Caustic Soda Flakes from Turkey & UAE
Caustic Soda Flakes (NaOH) Overview
Caustic soda flakes (sodium hydroxide, NaOH) are highly alkaline, white crystalline solids widely used across chemical, industrial, and food applications. With a pH of 12–14, these flakes dissolve readily in water, releasing heat (exothermic reaction) and serving as a powerful reagent for pH adjustment, neutralization, and chemical synthesis.
Physical and Chemical Properties of Caustic Soda Flakes
A clear understanding of caustic soda flakes’ properties is essential for safe handling and effective industrial use:
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Chemical Formula: NaOH
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Molar Mass: 40.00 g/mol
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Appearance: White, flat crystalline flakes
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Odor: Odorless
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Density: 2.13 g/cm³ (solid)
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Melting Point: 318°C
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Boiling Point: Decomposes before boiling
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Solubility: Highly soluble in water (up to 1,000 g/L at 20°C); releases heat upon dissolution
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Alkalinity (pH): 12–14
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Reactivity: Reacts strongly with acids, certain metals (e.g., aluminum), and moisture; generates exothermic reactions with water
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Corrosiveness: Highly corrosive to skin, metals, and organic materials
These properties make NaOH flakes an essential base chemical for pH regulation, neutralization, and synthesis across multiple industries.
Production Process of Sodium Hydroxide Flakes
Caustic soda flakes are primarily produced through the chlor-alkali process, ensuring high purity and uniform quality:
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Electrolysis of Brine: A concentrated salt (NaCl) solution is electrolyzed to yield sodium hydroxide, chlorine, and hydrogen gas.
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Purification: The crude NaOH is filtered, evaporated, and refined to eliminate impurities.
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Crystallization & Flaking: The concentrated solution is cooled under vacuum to form solid flakes.
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Drying & Packaging: The flakes are dried, sieved, and packed to maintain stability during storage and transport.
This precise process produces high-quality sodium hydroxide flakes with reliable chemical composition for diverse industrial applications.
Grades of Caustic Soda Flakes
Caustic soda flakes are available in multiple grades to match specific industrial needs:
| Grade | Purity | Key Uses | Applications |
|---|---|---|---|
| Technical Grade | 96–98% | pH adjustment, metal cleaning, textile processing | General industrial tasks like soap production or water softening |
| Industrial Grade | 98–99% | Oil refining, alumina extraction, pulp bleaching | Heavy-duty petrochemical, mining, and manufacturing operations |
| Food Grade | ≥99% | Fruit and vegetable peeling, cocoa processing, olive curing | FDA-approved applications in food and beverage processing |
| Pharmaceutical Grade | ≥99.5% | Drug synthesis, cosmetics | Healthcare and personal care products |
| Reagent Grade | ≥99.5% | Laboratory analysis, chemical research | Precision analytical chemistry and R&D labs |
Applications of Caustic Soda Flakes
Sodium hydroxide flakes are extremely versatile and widely used in various sectors:
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Soap and Detergent Manufacturing: Converts fats into soap via saponification.
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Oil Refining & Petrochemicals: Neutralizes acidic crude and facilitates desulfurization.
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Water Treatment: Raises pH, precipitates metals, and softens hard water.
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Textiles & Cotton Processing: Mercerizes cotton to improve strength and dye uptake.
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Paper & Pulp Industry: Dissolves lignin during pulping for stronger, brighter paper.
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Food Processing: Peels fruits and vegetables, processes cocoa, and cures olives.
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Biodiesel Production: Catalyzes the transesterification of oils into biofuels.
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Aluminum Extraction & Metallurgy: Dissolves bauxite in the Bayer process.
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Pharmaceuticals & Healthcare: Used as an excipient and for sterilizing equipment.
Caustic Soda Flakes Shipping Process
Sodium Hydroxide flakes are classified as dangerous goods (IMCO Class 8) for transport, and all shipments are labeled with the UN 1823 identification to ensure safety and compliance with international regulations. They are typically shipped in 20 ft. containers, carefully sealed to protect the product from moisture and contamination during transit.
Thanks to the strategic location of our production facilities in the Middle East, we maintain excellent access to major global transportation routes, allowing for efficient and cost-effective worldwide distribution. Our logistics process follows strict safety and environmental standards to guarantee product integrity from dispatch to delivery.
Every shipment is managed by a trained logistics team to ensure secure handling, documentation, and customs clearance, so that the caustic soda flakes arrive in optimal condition and ready for industrial use.
Handling and Storage of NaOH Flakes
Due to its corrosive nature, proper handling of NaOH flakes is essential:
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Store in airtight, moisture-proof containers in cool, dry, ventilated areas.
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Avoid contact with acids, metals, and moisture to prevent hazardous reactions.
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Wear PPE: chemical-resistant gloves, goggles, a face shield, and protective clothing.
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For spills: neutralize with dilute acids (like vinegar or citric acid) before washing.
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In case of contact: flush skin or eyes with plenty of water and seek medical help.
Caustic Soda Flakes Packaging
Caustic soda flakes are packed in 25 kg two-layer laminated PP bags to prevent moisture and preserve chemical stability. For larger shipments, these bags are combined into 1,250 kg jumbo bags or pallets to simplify handling and optimize transport.
Container Loading Capacity
A standard 20 ft. container typically holds around 25 metric tons of sodium hydroxide flakes, ensuring safe, efficient, and cost-effective delivery while maintaining product integrity throughout transit.
Specification of Caustic Soda Flakes
| CONTENT | TEST RESULT | UNIT |
|---|---|---|
| Al2O3 | Max 3 | PPM |
| Fe | 10 | PPM |
| Heavy Metals as Pb | Max 2 | PPM |
| Insoluble in Water | 0 | %W |
| Na2CO3 | 0.43 | %W |
| Na2SO4 | 0.0047 | %W |
| NaCl | 0.0085 | %W |
| NaOH | 98%±1 | %W |
| SiO2 | 0.0019 | %W |
| SHAPE | 0.3-1 | CM³ |
For Download Technical Data Sheets of Caustic Soda Flakes (Click Here)
