Message

Sodium hydroxide (NaOH), also known as caustic soda or lye, is a widely used chemical compound with diverse applications in industry and technology. Due to its highly alkaline and corrosive properties, handling requires special care and compliance with applicable safety regulations.

This overview describes key aspects of the safe storage, handling, and application of sodium hydroxide, taking into account European regulations.

Properties and hazards

Sodium hydroxide is a solid, white substance that is highly hygroscopic and absorbs moisture from the environment. Contact with water causes an exothermic reaction.

Key hazards:

• causes severe skin burns and eye damage (H314)
• may attack metals (H290)
• possible irritating effect on the respiratory tract

Proper handling is therefore essential.

Storage according to EU requirements

Sodium hydroxide must be stored in accordance with the requirements of the CLP and REACH regulations.

General storage conditions

• store in a dry, well-ventilated place
• protect from moisture
• store in suitable, tightly sealed containers

Suitable materials

Containers should be made of resistant materials, such as suitable plastics. Contact with reactive metals must be avoided.

Separation of substances

Sodium hydroxide must be stored separately from:

• acids
• reactive metals
• sensitive materials

to prevent unwanted reactions.

Safe handling in the workplace

When handling sodium hydroxide, appropriate protective measures are required.

Personal protective equipment

• protective gloves
• safety goggles or face shield
• suitable protective clothing

General notes

• avoid contact with skin and eyes
• do not inhale dust or aerosols
• work only in suitable, controlled environments

Applications in industry and technology

Sodium hydroxide is used in various fields, including:

• Chemical industry (e.g., neutralization, synthesis processes)
• Paper and pulp industry
• Cleaning and production processes
• Textile processing

Note:
Certain applications, such as in food processing, are subject to specific regulatory requirements and do not refer to this product type.

Emergency measures (general)

In case of contact with sodium hydroxide, immediate action is required:

• rinse affected areas with plenty of water
• remove contaminated clothing
• seek medical attention

Specific measures can be found in the respective safety data sheets.

Conclusion

Sodium hydroxide (NaOH) is an important chemical compound with a wide range of applications. Due to its highly corrosive properties, responsible handling is essential.

Compliance with applicable safety and storage regulations is crucial for minimizing risks in a professional environment.