sodium hydroxide solid sds

Safety Data Sheet (SDS) for Sodium Hydroxide Solid

1. Introduction

Sodium hydroxide, commonly known as caustic soda or lye, is an inorganic compound with the formula NaOH. It appears as a white solid that is highly hygroscopic, meaning it readily absorbs moisture from the atmosphere. Sodium hydroxide is widely used in various industrial applications, including soap making, paper manufacturing, and chemical synthesis. However, due to its highly caustic nature, it poses significant health and safety risks. Understanding the safety data sheet (SDS) for sodium hydroxide is crucial for safe handling and use.

2. Chemical Properties

- Chemical Name Sodium Hydroxide - CAS Number 1310-73-2 - Molecular Formula NaOH - Molar Mass 40.00 g/mol

Sodium hydroxide is a strong base that dissociates completely in water to produce hydroxide ions (OH⁻). Its high pH (greater than 13) makes it a powerful corrosive substance. Sodium hydroxide is not only soluble in water but also in alcohol and glycerol.

3. Hazards Identification

According to the SDS, sodium hydroxide is classified as a hazardous substance

- Appearance White, solid pellets or flakes. - Danger Statements - Causes severe skin burns and eye damage. - May cause respiratory irritation. - Harmful if swallowed or absorbed through the skin.

4. First Aid Measures

- Inhalation Move the affected individual to fresh air. If breathing is difficult, seek medical attention. - Skin Contact Rinse skin with plenty of water for at least 15 minutes. Remove contaminated clothing and seek medical advice. - Eye Contact Rinse immediately with plenty of water for at least 15 minutes and seek medical help. - Ingestion Do not induce vomiting. Rinse mouth and seek medical help immediately.

5. Firefighting Measures

Sodium hydroxide itself is not flammable, but it can react with certain materials (e.g., metals, organic compounds) to produce flammable hydrogen gas. In case of a fire

- Use water spray, dry chemical, CO2, or foam extinguishers. - Wear appropriate protective equipment, including a self-contained breathing apparatus.

6. Accidental Release Measures

In case of spillage, it is crucial to follow specific procedures to minimize exposure and hazard

- Evacuate unnecessary personnel. - Use personal protective equipment (PPE) such as gloves, goggles, and protective clothing. - Contain the spill with inert absorbent materials like sand or vermiculite. - Neutralize with a weak acid, such as vinegar or citric acid, before disposal.

7. Handling and Storage

Safe handling and storage practices are key to preventing accidents

- Always wear appropriate PPE when handling sodium hydroxide. - Store in a cool, dry place away from incompatible materials, like acids and organic compounds. - Ensure containers are tightly closed, and labels are legible and clearly marked to avoid confusion.

8. Exposure Controls and Personal Protection

Exposure limits are critical to ensure safety in a work environment

- Use local exhaust ventilation to keep airborne concentrations low. - Ensure that safety showers and eye wash stations are available in case of exposure. - Use protective gloves, goggles, and face shields to prevent skin and eye contact.

9. Regulatory Information

Various regulations govern the handling and use of sodium hydroxide, including OSHA standards and EPA regulations. Manufacturers and employers must be aware of these guidelines and ensure compliance to avoid legal repercussions.

10. Conclusion

Sodium hydroxide solid is a powerful and versatile chemical with numerous industrial applications. However, its corrosive properties warrant a comprehensive understanding of its hazards, proper handling techniques, and emergency measures. Employers and employees must familiarize themselves with the SDS to ensure a safe working environment. By adhering to safety standards and practices, the risk of accidents and health hazards can be significantly minimized, safeguarding both individuals and the environment.