• Product Name: Caustic Soda
  • Other Name: Sodium Hydroxide
  • Appearance: Pearls/Flakes
  • Sodium Hydroxide %≥: 99
  • CAS No.: 1310-73-2
  • HS Code: 28151100
  • Molecular Formula: NaOH

Caustic soda, also known as sodium hydroxide or industrial alkali, is an inorganic compound with the chemical formula NaOH. As a strong base, it is a white opaque plume crystal with a melting point of 328 degrees °C. Crisp, soluble in water and emits a lot of heat. Its aqueous solution is alkaline and feels creamy. Sodium hydroxide is easy to deliquescence in the air and can absorb carbon dioxide. 

As a basic chemical raw material, caustic soda and soda ash are two alkali in the “three acids and two alkali”. And it is often used as a raw material or reagent in industrial production and laboratories and has a wide range of uses. This product is commonly used in a variety of industrial and commercial applications, including chemical manufacturing, water treatment, food processing, textile manufacturing, cleaning agents and detergents,etc.

The form of caustic soda can be divided into liquid caustic soda (or liquid alkali) and solid caustic soda  (or solid alkali) according to its existing state. Liquid caustic soda is usually a colorless and transparent liquid, while solid caustic soda is colorless transparent crystal and comes in different forms such as flakes and granules. Please check their technical specifications below and contact us online for the latest caustic soda price list.

Technical Specifications of Caustic Soda Flakes/Pearls

ItemsCaustic Soda FlakesCaustic Soda Pearls
NaOH (Sodium Hydroxide)99% Min.99% Min.
Na2CO3 (Sodium Carbonate)0.4% Max.0.3% Max.
NaCl (Sodium Chloride)0.02% Max.0.02% Max.
Fe2O3 (Ferric Oxide)0.005% Max.0.005% Max.
Packing25KGS PP bag25KGS PP bag
26 Ton per 20’FCL28Ton per 20'FCL
With pallet: 22 Ton per 20’FCLWith pallet: 25 Ton per 20'FCL
Any package according to buyer's requirementsAny package according to buyer's requirements
StorageAs a Class 8 corrosive substance, due to its corrosive nature, careful storage and safe production are required, eg protective equipment must be worn during handling and storage. Keep them in an airtight container in a dry warehouse.

Caustic soda for sale can be widely used in chemical industry, metallurgical industry, petrochemical industry and daily life. For example, they can be used as detergent, saponification agent, peeling agent, acid neutralizer, complex masking agent, precipitating agent, precipitation masking agent, color developer, etc.

  • (1) As a raw material for manufacturing the detergents, soaps, textiles and paper.
  • (2) It can be used in water softening and treatment, oil field drilling mud, oil refining, hygiene and hygiene products.
  • (3) In the food industry, caustic soda 99% can be used as acid neutralizer, peeling agent, cleaning agent for empty bottles and cans, as well as decolorizing and deodorizing agents.

Caustic soda is typically produced through the electrolysis of salt water (brine) using a process known as the chlor-alkali process. In this process, a direct electric current is passed through an aqueous solution of sodium chloride (NaCl), which results in the formation of chlorine gas (Cl2) at the anode and sodium hydroxide (NaOH) at the cathode. Hydrogen gas (H2) is also produced at the cathode.

The resulting sodium hydroxide solution is typically concentrated to increase its strength, and it can be further processed to produce solid caustic soda pearls or flakes. The byproduct chlorine gas is also an important industrial chemical and is used to produce a wide range of products, including PVC plastics and disinfectants.

However, it should be noted that sodium hydroxide is highly corrosive to many substances, such as fibers, skin, glass, ceramics, etc. Once it comes into contact with skin or mucous membranes, it may cause burns. Therefore, when using caustic soda, we must wear protective equipment such as gloves, goggles, and protective clothing, and store it in a dry, ventilated, and cool place to avoid moisture and heat.

Why Choose Fengbai Company

  • A professional caustic soda manufacturer and supplier in China.
  • Stable supply & fast delivery.
  • Various packaging to meet customers’ requirements.
  • ISO quality, good service and competitive caustic soda price.
  • Good cooperation with cargo agents and shipping companies.
  • Fengbai chemical products have been exported to more than 30+ countries, including Brazil, Turkey, Colombia, Indonesia, Vietnam, Philippines, Malaysia, Thailand, Nigeria, Ghana, Uzbekistan, Russia, etc.