Caustic Soda Flakes | Sodium Hydroxide (NaOH) Supplier from China

Product Overview

Product Name	Caustic Soda Flakes
Other Names	Sodium Hydroxide, Lye
Chemical Formula	NaOH
CAS Number	1310-73-2
UN Number	1823
Dangerous Goods Class	Class 8 Corrosive Substance

Caustic soda flakes is a highly corrosive strong alkali and an indispensable basic chemical raw material for global industries. We supply industrial grade and food grade products with multiple purity grades, produced via mature pot process and molten salt process. Our products enjoy wide recognition worldwide thanks to stable quality, sufficient stock and complete supporting documents.

Product Description & Key Selling Points

Our caustic soda flakes feature high solubility in water with heat release and strong moisture absorption, requiring sealed storage for preservation. We provide two mainstream purities: 99% and 98.5% (standard 98%) , all complying with international universal standards, which can perfectly match customers' BOM lists.

As a typical consumable chemical, our products maintain a high repurchase rate from long-term clients. Benefiting from China's abundant production capacity, we guarantee a robust and stable supply chain with ready stock all year round. We accept small trial orders as well as full container loads to meet different order demands.

We deliver one-stop export services with complete certifications and dangerous goods export qualifications. Flexible trade terms, diversified packaging solutions and professional logistics support enable us to serve clients from all regions efficiently.

Specifications

Item	Details
Purity	99% (Pot process), 98.5% / 98% (Molten salt process)
Appearance	White flaky solid
Grade	Industrial Grade, Food Grade
Solubility	Easily soluble in water, releasing heat
Hygroscopicity	Strong moisture absorption
Storage Condition	Store in dry, ventilated place, keep tightly sealed

Applications

Industrial Fields

Petrochemical Industry: Used for desulfurization, deacidification and lubricant refining in oil refineries; removes mercaptans and acidic impurities from petroleum products. Also applied to eliminate hydrogen sulfide during natural gas purification.

Textile & Dyeing Industry: Ideal for cotton fabric mercerization to enhance luster and strength. Widely used for desizing, scouring and bleaching, as well as neutralization in dye production.

Paper & Pulp Industry: Applied in wood pulp cooking to decompose lignin and separate fibers. Also used for waste paper deinking and paper sizing to improve toughness.

Water Treatment: Neutralizes acidic wastewater and adjusts pH value. Effectively removes heavy metal ions such as copper and lead, suitable for municipal sewage, electroplating wastewater and chemical wastewater treatment.

Metallurgical Industry: Core raw material for alumina extraction in aluminum electrolysis. Used for metal surface degreasing, derusting and refining of zinc, copper and other metals.

Chemical Synthesis: Raw material for saponification to produce soap and detergents. Used to manufacture sodium phosphate, sodium sulfite and other inorganic chemicals, and acts as alkaline catalyst for plastics and resin production.

Specialized Fields

Food Industry: Used for fruit peeling in canned food processing, acid neutralization, and equipment disinfection with 1%–2% aqueous solution.

Pharmaceutical Industry: Serves as synthetic intermediates for antibiotics and vitamins; high-concentration solution for medical device disinfection.

Daily Chemical Industry: Works as pH regulator in shampoo, body wash, laundry detergent and carrier for abrasives in toothpaste.

Why Choose Our Caustic Soda Flakes?

✅ Standardized Global Specifications: Purity grades (99% and 98.5%) aligned with global market requirements. Clear technical parameters for easy BOM matching.

✅ Exceptional Supply Chain Stability: Strong spot supply capabilities backed by China's robust production capacity. Support both small trial orders and full container loads (FCL).

✅ High Repurchase Value & Consistency: Every batch maintains the same chemical properties, allowing stable production lines without constant re-calibration.

Packaging & MOQ

Packaging Options:

• Standard Package: 25kg moisture-proof laminated woven bags
• Bulk Package: Ton bags (for large orders)
• Custom packaging available upon request
• All packages marked with standard corrosive hazard labels

Minimum Order Quantity (MOQ):

• Small trial order: 1 ton
• Full container order: 20GP / 40GP
• Mixed loading and LCL shipment supported

Certifications & Compliance

• Material Safety Data Sheet (MSDS)
• Certificate of Analysis (COA) for each batch
• Dangerous Goods Export Registration & Inspection Reports
• Food Grade Certification (for food grade products)
• GOST Certification (for Central Asian markets)
• Full compliance with international dangerous goods regulations

Shipping & Trade Terms

Trade Terms	FOB, CIF, CFR
Main Loading Ports	Qingdao Port, Tianjin Port
Sea Freight	Professional dangerous goods carriers, IMDG compliant
Railway Freight	Available for Central Asia and adjacent regions
Lead Time (In-stock)	3–7 working days after deposit confirmation
Lead Time (Bulk Orders)	Negotiable according to quantity

FAQ

Q1: What is your MOQ?
A: The minimum order quantity is 1 ton. We support trial orders, LCL and full container shipments.

Q2: Do you provide food grade caustic soda flakes?
A: Yes, we supply both industrial grade and food grade products with complete relevant certifications.

Q3: Can I get free samples?
A: Samples are available. Customers only need to bear the freight cost.

Q4: What trade terms do you accept?
A: We support FOB, CIF and CFR. We can quote based on your destination port.

Q5: What documents will you provide for export?
A: We offer MSDS, COA, inspection reports, dangerous goods documents and other required papers.

Q6: How about your supply capacity?
A: We have sufficient inventory and strong production capacity to support long-term large-volume orders.

Get a Free Quote Now

Interested in our high-quality Caustic Soda Flakes?
Contact us now to get the latest free quotation and detailed product catalog!
We are ready to offer professional solutions and stable supply for your business.

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