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Safety Data Sheet (SDS) for Sodium Hydroxide (50%) Introduction Sodium hydroxide (NaOH), commonly known as lye or caustic soda, is a highly versatile compound widely used in various industries, including chemical manufacturing, food processing, and wastewater treatment. This article provides a comprehensive overview of the Safety Data Sheet (SDS) for sodium hydroxide at a concentration of 50%, outlining its hazards, handling precautions, first aid measures, and environmental impact. Chemical Identification Sodium hydroxide is an inorganic compound that appears as a white solid or flake. When dissolved in water, it forms a highly alkaline solution that can be corrosive to organic tissue. The CAS number for sodium hydroxide is 1310-73-2. Hazards Identification Sodium hydroxide is classified as a highly corrosive substance. It poses several health hazards, including - Skin and Eye Irritation Direct contact with sodium hydroxide can cause severe burns and irritation. - Respiratory Issues Inhalation of sodium hydroxide dust or mist can result in respiratory tract irritation and damage. - Digestive Harm Ingestion of this compound can cause severe burns to the mouth, throat, and stomach, leading to potentially life-threatening conditions. Environmental hazards associated with sodium hydroxide include its potential to significantly raise the pH of water bodies, which can harm aquatic life. Composition and Ingredients Sodium hydroxide typically comes in a variety of concentrations, with 50% being a common solution used industrially. The primary ingredient is sodium hydroxide, with the remainder being water. sodium hydroxide 50 sds First Aid Measures Immediate first aid response is crucial in case of exposure to sodium hydroxide. Recommended procedures include - Inhalation Move the affected person to fresh air immediately. If breathing is difficult, administer oxygen and seek medical attention. - Skin Contact Remove contaminated clothing and wash affected skin with plenty of water for at least 15 minutes. Seek medical attention if irritation persists. - Eye Contact Rinse eyes cautiously with water for several minutes. Remove contact lenses if possible. Continue rinsing and seek immediate medical attention. - Ingestion Do not induce vomiting. Rinse mouth and seek medical attention immediately. Handling and Storage When working with sodium hydroxide, it is essential to follow proper handling and storage procedures - Personal Protective Equipment (PPE) Wear appropriate PPE, including gloves, goggles, and protective clothing, to minimize exposure. - Ventilation Ensure adequate ventilation in the workspace to prevent inhalation of vapors or dust. - Storage Store sodium hydroxide in a cool, dry place, away from incompatible substances like acids. Utilize corrosion-resistant containers to prevent leakage. Environmental Precautions Sodium hydroxide can be harmful to aquatic environments. In the event of a spill, it is vital to prevent the compound from entering waterways. Neutralization with a suitable acid (such as acetic acid) can mitigate its impact before disposal in accordance with local regulations. Conclusion Sodium hydroxide (50%) is a powerful chemical that requires careful handling and respect due to its hazardous nature. Understanding the information presented in the Safety Data Sheet is crucial for ensuring safety in environments where sodium hydroxide is used. By following established safety protocols, emergency procedures, and environmental precautions, risks associated with this compound can be effectively managed. Always consult the SDS before working with sodium hydroxide to guarantee the well-being of personnel and the environment.

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