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What is Caustic Soda NaOH?

By Basic ChemistryNews

Caustic soda (NaOH), also known as Sodium Hydroxide, is a basic chemical widely used in many industries and daily life. With strong alkalinity and diverse applications, NaOH plays an indispensable role in production, water treatment and many other fields.

I. What is caustic soda?

Caustic soda (NaOH) is a chemical compound of sodium that exists as a white solid that can be found in pellets, flakes, or granules. It is a strong base that dissolves easily in water and releases heat when dissolved. The highly corrosive nature of NaOH makes it a useful chemical but also a potentially dangerous one if not handled properly.

  • Chemical formula: NaOH
  • Physical properties:
    • Solid form: tablets, flakes, or granules.
    • Solution: strongly soluble in water, common concentrations from 10% to 50%.
    • Density: 1,829 g/cm³.
    • Melting point: 65,1°C.
  • Chemical properties:
    • NaOH is a strong base, reacts with acids to form salt and water.
    • Easily absorbs moisture and CO₂ from the air.

Caustic soda NaOH
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II. Applications of NaOH

1. Production of detergents and soaps

  • NaOH is a key ingredient in the production of soaps, dishwashing liquids and industrial cleaning products.
  • Javen water, an effective bleaching agent, is produced from NaOH.

2. Water treatment

  • Adjusting wastewater pH: NaOH helps increase pH, creating favorable conditions for microorganisms to decompose organic matter.
  • Swimming pool water treatment: Removes impurities and balances alkalinity in water.

3. Paper industry

  • In paper production, NaOH is used to whiten and treat pulp from raw materials such as wood, bamboo, and rattan.

4. Textile and dyeing industry

  • Used to clean rough fabrics, decompose pectin and wax.
  • In rayon production, NaOH decomposes lignin, a harmful substance that accompanies cellulose.

5. Food processing

  • NaOH removes fatty acids in vegetable and animal oils, making the raw materials cleaner before processing.
  • Used to sterilize brewery equipment and process vegetables prior to canning.

6. Oil and gas industry

  • NaOH adjusts pH in drilling fluids and removes acidic compounds during petroleum refining.

7. Chemical production

  • NaOH is an important raw material in the production of other chemicals such as aspirin, bleach and disinfectants.

Looking for more information: Industrial production of NaOH

III. Important notes when using NaOH

1. Harmful effects of NaOH if not used properly:

  • From: Causes severe corrosion and burns.
  • Eye: May damage the lens or cause blindness.
  • Respiratory system: Causes lung damage if NaOH dust is inhaled.
  • Digestive: Harmful if swallowed, may cause intestinal damage or death.

2. Safety measures when working with NaOH:

  • Use full protective equipment such as gloves, goggles and mask.
  • Store NaOH in a closed container to avoid desiccation and absorption of CO₂.
  • If exposed:
    • From: Rinse immediately with clean water for at least 15 minutes, bandage the affected area and go to a medical facility.
    • Eye: Immediately flush eyes with clean water for 15 minutes, remove contact lenses if present, then seek medical attention.
    • Inhalation: Move to fresh air, give respiratory support if necessary.
    • Ingestion: Do not induce vomiting, drink water to dilute and contact a medical facility immediately.

 

IV. Where to buy reputable NaOH?

the Company Loc Thien Chemicals is a supplier of high quality NaOH with a variety of products from flakes, granules to liquid solutions. With many years of experience in the industry, Loc Thien is committed to providing products that meet international standards and professional support services.

Advantages of choosing Loc Thien Chemicals:

  • Guaranteed quality: Products meet ISO and MSDS standards.
  • Abundant sources of goods: Meet all needs from individuals to large businesses.
  • Professional support: Dedicated technical advice, fast delivery.

CONTACT US

Warehouse office branch:

  • Warehouse 1: Phuoc Hung Hamlet, My Xuan Ward, Tan Thanh District, Ba Ria - Vung Tau
  • Warehouse 2: Phuoc Thai, Phuoc Binh Ward, Long Thanh, Dong Nai
  • Warehouse 3: Tan Dong Hiep B Industrial Park, Di An, Binh Duong
  • Warehouse 4: Hoa Khanh Industrial Park, Da Nang
  • Warehouse 5: O Mo Industrial Park, Phuoc Thoi Ward, O Mon District, Can Tho City
  • Warehouse 6: Dai Dong - Hoan Son Industrial Park, Tri Phuong Ward, Tien Du, Bac Ninh

Loc Thien Chemicals Logo Loc Thien Chemical Logo

V. FAQ – Frequently asked questions about NaOH

What is NaOH and what is its main use?
NaOH, also known as caustic soda, is a strong base widely used in soap making, water treatment, and the paper industry.
Is NaOH safe to use?
NaOH is very corrosive so protective equipment must be used and safety procedures must be strictly followed when handling it.
How to store NaOH properly?
Store in a tightly closed container, away from moisture and exposure to air to limit CO₂ absorption and reduce the risk of unwanted reactions.
Where can I buy NaOH in Vietnam?
Loc Thien Chemical Company provides quality NaOH with many different product forms, meeting the needs of customers nationwide.
What is the application of NaOH in water treatment?
NaOH is used to adjust pH in wastewater and swimming pools, helping to improve water quality and increase treatment efficiency.

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