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Caustic Soda

Caustic Soda is a white solid substance with the chemical formula NaOH. It is highly soluble in water, with a lower solubility in polar solvents like methanol and ethanol. Caustic Soda is used in the manufacture of paper, textiles, detergents, soaps, etc.

ArChem provides Caustic Soda and other raw chemical materials such as Sodium Nitrate, Soda Ash, and Ammonium Chloride for various industrial applications. Additionally, ArChem provides customers with other chemical products including Nitrocellulose, Nitrocellulose solution, organic solvents, etc. for further information please contact our technical sales team in ArChem. 

archem caustic soda

What is Caustic Soda?


Sodium Hydroxide, also known as Caustic Soda and lye, is an inorganic compound with unique properties suitable for different applications. It is an alkali (a type of base that can neutralize acids) and can cause chemical burns. So, operators should use personal protective equipment when using this substance. Plus, it can absorb moisture and carbon dioxide from the air.

ArChem Caustic Soda can be manufactured in three different forms including: Caustic Soda pearls, Caustic Soda flakes and Caustic Soda lye liquid. The most common form of this product is caustic soda flakes.

Caustic Soda pearls 

Caustic Soda pearls or granulated Caustic Soda is composed of white grains, suitable for filtration applications. This type of Caustic Soda is produced by a caustic soda solution filtration through mesh grids. The size of particles in this group is about 0.6-0.8 mm. Caustic soda pearl can resist temperatures up to 80 °C.

Caustic Soda flakes 

This grade of Caustic Soda is produced with 99.9% of purity. It is produced by Evaporation of caustic soda solution. The size of particles is about 0.8-1.2 mm. It is used mostly in Manufacturing Soap, Detergents, Paper and pulp.

Caustic Soda lye liquid 

Caustic Soda liquid (also known as Caustic soda 50% and Lye solution) is a colorless liquid which is produced via electrolysis of Sodium Chloride solution. The desired concentration of caustic soda in the solution is 50%. however, depending on your applications, it can be thinner by adding water.

It has various applications in different industries such as water pH regulation, refining of cooking oils, bleach manufacturing, and fruit cultivation.

Caustic Soda Technical Properties 

ArChem Caustic Soda is classified as a corrosive chemical. Other names of this product are Sodium Hydroxide, NaOH, solid NaOH, Soda lye, and White caustic. Chemical and physical properties of ArChem Sodium hydroxide are:

Molecular FormulaNaOH
IUPAC nameSodium Hydroxide
Cas Number1310-73-2
Molecular weight39.997 g/mol
Density2.13 gcm–3
Boiling Point1388 °C
FlashpointNot applicable
Melting Point323 °C
FlammabilityNot combustible (but may decompose upon heating to produce corrosive and toxic fumes)

Caustic Soda Applications 

Caustic Soda’s effectiveness makes it an essential chemical for many processes. Some uses of ArChem Sodium Hydroxide include:

  • Aluminum industry
  • Pulp and paper
  • Leather and textile industries
  • Drinking water
  • Soaps and detergents
  • Drain cleaner
  • Water treatment
  • Oil and gas
  • Food industry
  • Chemical industry
  • Pharmaceuticals like blood thinners

Caustic Soda Production 

Caustic Soda is produced by passing an electrical current through brine (common salt dissolved in water). This is called electrolysis. elemental chlorine (Cl2), Caustic Soda (sodium hydroxide or NaOH) and hydrogen (H2) are products of this process.

naoh production

Caustic Soda Storage 

This product is corrosive. Storage conditions of ArChem Caustic Soda are listed below:

  • Caustic Soda must be stored in a cool and well-ventilated place. Containers should be tightly closed. Plus, containers should keep upright.
  • This product should be stored away from incompatible materials.
  • This product should keep out of moisture and direct sunlight.
  • Storage temperature of Caustic Soda is about 29 – 38 C. above this temperature, it creates corrosion and iron rust occurs.

Caustic Soda Health Hazards

Caustic Soda is highly alkaline and hydrophilic. It is extremely corrosive to skin tissue. So, unprotected physical contact with the substance should be avoided.

The severity of the symptoms will vary dependent on the concentration and the length of exposure. Some of necessary first-aid measures are described as below:

  • If inhaled, move affected person to fresh air and keep warm and at rest in a position comfortable for breathing. Loosen tight clothing. Seek medical attention immediately.
  • In the case of ingestion, rinse mouth thoroughly with water. Do not induce vomiting unless under the direction of medical personnel. Never give anything by mouth to an unconscious person. Seek medical attention immediately.
  • In the case of skin contact, it is important to remove the substance from the skin immediately. Take off all contaminated clothing and rinse immediately with plenty of water for at least 15 minutes. Seek medical attention immediately.
  • If in eyes, rinse them with plenty of water for at least 10 minutes. Remove any contact lenses and open eyelids wide apart.

Always be careful when using caustic soda. Operators should wash hands before breaks and after work. they should use personal protective equipment and wear chemical impermeable gloves, when handling caustic soda to avoid contact with the body, skin, and eyes.

Raw chemical materials are used in the production of chemicals, cosmetics, disinfectants, pharmaceuticals and food industry. ArChem provides customers with the best quality raw chemical materials and competitive prices on the market.
Please contact us for a price quote, to request detailed product information and specifications, or to have a sales representative call or visit.


What is Caustic Soda used for? 

Caustic Soda is mostly used in the production of soap and detergents. Additionally, it has different applications in water treatment, food and chemical industry.

What is the other name of Caustic Soda? 

Caustic Soda is also known as sodium hydroxide, NaOH, or lye.

What is the price of Caustic Soda?

ArChem raw chemical materials can be purchased in a variety of volumes. Depending on your orders, Prices are different. for more information, please contact our technical sales team in ArChem.

Is Caustic Soda toxic? 

Caustic Soda does not produce toxicity, but is very corrosive and can cause severe burns. It is a potentially dangerous substance.

What is the CAS number of Caustic Soda? 

The CAS number of Caustic Soda is 1310-73-2.

What is the HS code for Caustic Soda? 

The HS code of Caustic soda is 2815 11 00.

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