Sodium Hydroxide

Sodium Hydroxide (NaOH), also known as Caustic Soda, is supplied by HOO CHEMTEC in 99% flakes and pearls for industrial and water treatment applications.

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Sodium Hydroxide/Caustic Soda

  • CAS Number: 1310-73-2
  • UN NO.: UN1823
  • Molecular Formula: NaOH
  • Purity (%): 99% Min
  • Appearance: White Flakes / White Pearls
  • Packing: 25kgs/bag
  • Other Names: Caustic soda; lye, caustic; sodium hydrate; soda lye; white caustic; caustic soda flakes; flake caustic; caustic soda
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Sodium Hydroxide / Caustic Soda Overview

Sodium Hydroxide and Caustic Soda refer to the same chemical compound, NaOH. In international chemical trading, the terms Sodium Hydroxide, Caustic Soda, NaOH and Lye may all be used to identify this product.

The main difference buyers need to consider is not the chemical identity but the physical form, purity, packaging and application requirements.

HOO CHEMTEC supplies Caustic Soda in two common solid forms: flakes and pearls.

Sodium Hydroxide Specifications

PRODUCT LIST

Sodium Hydroxide for Sale

Caustic Soda Flakes vs Pearls

Property Caustic Soda Flakes Caustic Soda Pearls
Appearance White flakes White spherical beads
Purity Usually 98–99% Usually 99%
Dissolution Rate Fast Fast and uniform
Dust Generation Low Very low
Handling Safety Good Excellent
Storage Stability Good Excellent
Common Packaging 25kg bags 25kg bags
Main Applications Water treatment, soap production, chemical processing Pharmaceuticals, food processing, chemical manufacturing, water treatment

Which One Should You Choose?

For general industrial use: Caustic Soda Flakes

For clean handling and automated dosing: Caustic Soda Pearls

 

What is Sodium Hydroxide Used for

  • Light Industry and Daily Use: A fundamental material for the production of soap, laundry detergent, and various synthetic detergents. Soap is made by the saponification reaction of grease and caustic soda.
  • Pipe Unclogging: Its strong alkaline properties quickly dissolve grease, hair, and protein blockages, making it a core ingredient in powerful pipe cleaners commonly used in hardware and building materials industries.
  • Textile and Dyeing Industry: Used for desizing, scouring, and mercerizing cotton and linen fabrics, increasing fiber luster and making dyeing more even.
  • Papermaking and Pulp Delignification and Bleaching: Used in the papermaking industry to dissolve non-cellulose components (such as lignin) in wood raw materials, separating high-quality plant fibers and improving paper quality and whiteness.
  • Chemical Industry: A basic chemical raw material used in the production of dozens of important organic and inorganic chemicals, such as borax, sodium cyanide, formic acid, oxalic acid, and phenol.
  • Petroleum and Metallurgy: Used to wash away acidic substances in petroleum products, improving oil quality.
  • Aluminum smelting industry: In alumina production, caustic soda is used to dissolve alumina in bauxite to extract high-purity aluminum.
 

Sodium Hydroxide Supplier in China

HOO CHEMTEC supplies 99% Sodium Hydroxide (Caustic Soda) in flakes and pearls to international B2B customers.

We support customers with:

  • Bulk Sodium Hydroxide supply
  • Flakes and pearls
  • Export packaging
  • COA, SDS and TDS
  • Sample evaluation
  • Technical product information
  • International shipping support

If you are sourcing Sodium Hydroxide, Caustic Soda Flakes or Caustic Soda Pearls, send us your required purity, form, quantity, packaging and destination. Our team can provide the appropriate product specification and quotation.

 
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FAQ of Sodium Hydroxide

All shipments undergo strict quality inspection before loading. Every batch is tested according to internal quality standards, and a Certificate of Analysis is issued to ensure consistent performance and compliance with customer requirements.

We export Caustic Soda worldwide, including customers in Southeast Asia, the Middle East, Africa, South America, Europe, and North America.

Yes. Caustic Soda is classified as a corrosive substance.

  • UN 1823 – Sodium Hydroxide, Solid
  • Hazard Class: 8 (Corrosive)

Our export team ensures all hazardous goods documentation and packaging comply with international transport regulations.

Yes. Sodium Hydroxide and Caustic Soda are common names for the same chemical compound, NaOH.

Sample availability can be discussed based on the customer’s application, required form and destination.

Send your required form, purity, quantity, packaging and destination to HOO CHEMTEC. The sales team can confirm the applicable specification, documentation, logistics and quotation.

Caustic Soda Wholesale - HOOCHEMTEC

HOO CHEMTEC: Your Reliable Caustic Soda Partner

We are a direct supplier of high-purity Caustic Soda (Sodium Hydroxide), available in both flakes and pearls with a purity of 99% min. Backed by strong manufacturing partnerships and strict quality control procedures, we ensure consistent product performance for water treatment, chemical processing, pulp & paper, textile, detergent, mining, and other industrial applications.

Every batch is tested in our ISO-certified laboratory, and a Certificate of Analysis (CoA) is provided with each shipment, giving our customers confidence in product quality and consistency.

Export & Logistics Expertise

Caustic Soda is classified as a hazardous chemical under UN 1823 (Solid) and UN 1824 (Solution). Our experienced export team handles all required documentation, including SDS/MSDS, CoA, packing declarations, and transport certificates, ensuring safe, compliant, and efficient worldwide delivery.

Why Choose Us?

✔ Stable annual supply and competitive pricing

✔ Available in flakes and pearls, with flexible packaging options

✔ Standard 25kg bags, jumbo bags, and customized packaging available

✔ Free samples available for pre-order evaluation

✔ Responsive technical support and application guidance

✔ Professional export documentation and global shipping experience

Partner with HOO CHEMTEC for dependable Caustic Soda supply and professional international logistics support. Contact us today for quotations, technical data, and sample requests.

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