Caustic Soda Flakes (NaOH 99%) — China Supplier & Exporter

Jinan ZZ International Trade Co., Ltd. is a professional Caustic Soda Flakes supplier from China, exporting high-purity Sodium Hydroxide (NaOH) flakes to customers in over 30 countries. We provide stable supply, competitive bulk pricing, and complete export documentation for global industrial buyers.

What Is Caustic Soda Flakes?

Caustic Soda Flakes (also known as Sodium Hydroxide flakes or NaOH flakes) is a white, solid, highly alkaline chemical compound. It is one of the most widely used industrial chemicals in the world, serving as a fundamental raw material in chemical manufacturing, water treatment, pulp and paper, textiles, soap, and food processing industries.

CAS Number: 1310-73-2 | HS Code: 2815.11 | Molecular Formula: NaOH | Molecular Weight: 40.00 g/mol

Product Specifications

• Product Name: Caustic Soda Flakes (Sodium Hydroxide Flakes)

• CAS No.: 1310-73-2

• NaOH Content: 99.0% min

• Sodium Carbonate (Na₂CO₃): 0.5% max

• Sodium Chloride (NaCl): 0.03% max

• Iron (Fe): 0.005% max

• Appearance: White flakes

• Origin: China (Shandong Province)

Custom specifications are available upon request to meet specific industrial requirements.

Applications of Caustic Soda Flakes

Caustic Soda Flakes (NaOH) is one of the most versatile industrial chemicals, used across a wide range of industries:

1. Chemical Manufacturing

Caustic soda is a fundamental raw material in the production of chlorine, PVC, solvents, plastics, adhesives, and chemical intermediates. It is used in neutralization reactions, pH adjustment, and as a base catalyst in organic synthesis.

2. Pulp & Paper Industry

NaOH is used in the kraft pulping process to break down lignin and separate cellulose fibers from wood. It is also used in paper bleaching and recycling processes.

3. Textile Industry

Caustic soda is used in mercerization of cotton, a process that improves the strength, luster, and dye absorption of cotton fabrics. It is also used in fiber scouring and dyeing processes.

4. Water Treatment

NaOH is widely used in municipal and industrial water treatment to adjust pH levels, neutralize acidic wastewater, and precipitate heavy metals. It is essential for maintaining safe drinking water standards.

5. Soap & Detergent Production

Caustic soda is the key ingredient in saponification — the chemical process of making soap. It reacts with fats and oils to produce soap and glycerol. It is also used in the production of synthetic detergents and cleaning agents.

6. Food Industry

Food-grade Sodium Hydroxide is used in food processing for curing olives, making pretzels, processing cocoa, and as a pH regulator (E524) in various food products.

7. Alumina & Mining Industry

NaOH is used in the Bayer process to extract alumina from bauxite ore, and in various mineral processing and ore leaching operations.

Packaging & Storage

• Standard Packaging: 25 kg PP woven bags with inner PE liner

• Bulk Packaging: 50 kg bags or 1,000 kg jumbo bags (FIBC) available

• Custom packaging available on request

• Storage: Store in a cool, dry, well-ventilated warehouse. Keep tightly sealed — caustic soda is highly hygroscopic and will absorb moisture and CO₂ from the air. Keep away from acids, moisture, and organic materials.

• Shelf Life: 12 months under proper storage conditions

Caustic Soda Flakes vs. Caustic Soda Pearls

Both forms contain the same active ingredient (NaOH 99%) but differ in physical form and handling:

• Caustic Soda Flakes: Thin, flat white flakes. Dissolve quickly in water. Preferred for industrial processes requiring fast dissolution.

• Caustic Soda Pearls: Small, round white beads. Easier to handle, measure, and dose. Less dust generation. Preferred for applications requiring precise dosing.

Jinan ZZ International Trade supplies both forms. Please contact us to discuss which grade best suits your application.

Why Source Caustic Soda Flakes from Jinan ZZ International Trade?

• ✅ 15+ years of chemical export experience

• ✅ Exports to 30+ countries across Southeast Asia, the Middle East, Africa, and South America

• ✅ Strict quality control: pre-shipment inspection, batch testing, third-party inspection available

• ✅ Competitive bulk pricing with flexible payment terms

• ✅ Full export documentation: COA, MSDS, Bill of Lading, Certificate of Origin

• ✅ Both Flakes and Pearls forms available

• ✅ Fast response and dedicated customer support

Frequently Asked Questions (FAQ)

Q1: What is Caustic Soda Flakes used for?
A: Caustic Soda Flakes (NaOH) is used in chemical manufacturing, water treatment, soap and detergent production, pulp and paper processing, textile mercerization, food processing, and alumina extraction.

Q2: What is the chemical formula and CAS number of Caustic Soda?
A: The chemical formula is NaOH (Sodium Hydroxide). The CAS number is 1310-73-2.

Q3: What purity grade does Jinan ZZ supply?
A: We supply Caustic Soda Flakes with a minimum NaOH content of 99.0%, suitable for industrial, chemical, and water treatment applications.

Q4: What is the difference between Caustic Soda Flakes and Caustic Soda Pearls?
A: Both contain NaOH 99% but differ in physical form. Flakes dissolve faster and are preferred for industrial processes; Pearls are easier to handle and dose precisely. Jinan ZZ supplies both forms.

Q5: Is Caustic Soda Flakes the same as Sodium Hydroxide?
A: Yes. Caustic Soda, Sodium Hydroxide, Lye, and NaOH are all names for the same chemical compound.

Q6: What is the minimum order quantity (MOQ)?
A: Please contact us directly for MOQ and pricing. We accommodate both small trial orders and large bulk shipments.

Q7: Is Caustic Soda Flakes hazardous?
A: Yes. Caustic Soda is a corrosive substance that can cause severe burns to skin and eyes. Proper PPE (gloves, goggles, protective clothing) must be worn when handling. Full MSDS documentation is available upon request.

Q8: Which countries does Jinan ZZ export Caustic Soda Flakes to?
A: We export to customers in Southeast Asia, the Middle East, Africa, South America, and other regions worldwide.