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Safety Data Sheet (SDS) for 1M Sodium Hydroxide Introduction Sodium hydroxide (NaOH), commonly known as lye or caustic soda, is a strong alkaline compound widely used in various industrial and laboratory applications. A 1M solution of sodium hydroxide means that there is 1 mole of NaOH dissolved in 1 liter of solution. Due to its caustic nature, it is essential to understand the properties, hazards, and safe handling procedures associated with sodium hydroxide, particularly in this concentrated form. Physical and Chemical Properties Sodium hydroxide is a white, solid compound that is highly soluble in water, releasing heat upon dissolving. The 1M sodium hydroxide solution has a pH value typically above 13, making it strongly alkaline. This high pH can severely irritate or burn living tissues, hence the need for careful handling. - Chemical Formula NaOH - Molar Mass 40.00 g/mol - Appearance Colorless to pale yellow liquid - Solubility Soluble in water; releases heat upon dissolution Hazards Identification 1M sodium hydroxide poses several hazards - Corrosive It can cause severe burns on contact with skin, eyes, and mucous membranes. It can also cause serious damage to respiratory organs when inhaled. - Environmental Hazards Release of sodium hydroxide into the environment can cause ecological damage, particularly to aquatic life. - Reactivity Sodium hydroxide can react vigorously with acids and some metals, leading to the release of flammable hydrogen gas or generating large amounts of heat. Signal Word Danger Hazard Statements - Causes severe skin burns and eye damage. - May be corrosive to metals. Precautionary Statements - Wear protective gloves, eye protection, and face protection. - Keep away from incompatible materials. 1m sodium hydroxide sds First-Aid Measures In the event of exposure to 1M sodium hydroxide, prompt first aid is crucial - Skin Contact Immediately flush the affected area with large amounts of water for at least 15 minutes while removing contaminated clothing. - Eye Contact Rinse the eyes cautiously with water for several minutes. Remove contact lenses if present and continue rinsing. - Inhalation Move to fresh air immediately. If breathing is difficult, seek medical assistance. - Ingestion Do not induce vomiting. Rinse mouth with water and seek immediate medical attention. Handling and Storage When working with 1M sodium hydroxide, adhere to strict safety protocols to minimize risks - Personal Protective Equipment (PPE) Always wear appropriate PPE, including safety goggles, gloves, and lab coats. In case of a large-scale use, consider face shields and aprons. - Work Environment Use in a well-ventilated area or fume hood to prevent inhalation of vapors. - Storage Store in a cool, dry place in a tightly closed container. Clearly label containers and ensure they are made of compatible materials (e.g., polyethylene or glass). Disposal Considerations Disposal of sodium hydroxide must be conducted in accordance with local regulations. Neutralization with a weak acid, such as vinegar or citric acid, can be appropriate for small amounts. For larger volumes, contact a waste disposal service experienced in handling hazardous chemical waste. Conclusion Sodium hydroxide, particularly in a 1M concentration, is a valuable chemical in various applications, from manufacturing to cleaning agents. However, its corrosive nature necessitates careful consideration of safety protocols to prevent accidents and injuries. By understanding its properties, associated risks, and safe usage practices, users can effectively manage the hazards and utilize sodium hydroxide safely in their operations. Always refer to the latest Safety Data Sheet for detailed information on handling and emergencies.

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