sodium dihydrogen phosphate dihydrate sds

Safety Data Sheet (SDS) for Sodium Dihydrogen Phosphate Dihydrate

Introduction Sodium dihydrogen phosphate dihydrate (NaH₂PO₄·2H₂O) is an important inorganic compound widely used in various industries, including food, pharmaceuticals, and laboratories. This article highlights the significance of its Safety Data Sheet (SDS), which provides essential information for the safe handling, storage, and disposal of this chemical.

Chemical Identification Sodium dihydrogen phosphate dihydrate is a white, crystalline powder that is soluble in water. It is often used as a buffering agent, nutrient, and emulsifier. The chemical formula indicates that each molecule contains two water molecules, making it a hydrate. Its CAS number is 7782-85-6. In laboratories, it serves as a reagent and is vital for cellular and molecular biology applications.

Physical and Chemical Properties Understanding the physical and chemical properties of sodium dihydrogen phosphate dihydrate is crucial for safety practices. The compound has a melting point of approximately 60°C and a density of 1.91 g/cm³. It commonly appears as a white powder or crystalline solid. The pH of a 1% aqueous solution typically ranges from 4.5 to 5.0, illustrating its acidic nature.

Hazards Identification While sodium dihydrogen phosphate dihydrate is generally regarded as safe, certain precautions should still be taken. According to the SDS, the material is not classified as hazardous under normal conditions; however, inhalation, skin contact, or eye contact with the powder may cause mild irritation. The SDS recommends using appropriate personal protective equipment (PPE) when handling the compound.

First Aid Measures In the event of exposure, the SDS provides clear first aid measures. For skin contact, affected areas should be washed with water and soap. If powder is inhaled, victims should be moved to fresh air and medical attention should be sought if symptoms persist. The SDS emphasizes the importance of flushing the eyes with water for at least 15 minutes if contact occurs.

Firefighting Measures Although sodium dihydrogen phosphate dihydrate is not flammable, it may decompose at elevated temperatures, releasing phosphorus oxides. In case of a fire, use water spray, foam, dry chemical, or carbon dioxide to extinguish flames. Firefighters should wear self-contained breathing apparatus (SCBA) and full protective gear to minimize exposure to any toxic fumes that may arise.

Handling and Storage Safe handling practices are critical for minimizing risks associated with sodium dihydrogen phosphate dihydrate. It should be stored in a cool, dry, well-ventilated area away from incompatible substances. Containers should remain tightly sealed when not in use to prevent moisture absorption. It is vital to keep this compound away from strong oxidizers, as the mixture may create hazardous conditions.

Exposure Controls and Personal Protection The SDS outlines recommended exposure controls, suggesting that adequate ventilation be provided when working with sodium dihydrogen phosphate dihydrate in powder form. Personal protective equipment such as gloves, goggles, and lab coats should be employed to minimize exposure risks. An eye wash station and emergency shower should be readily accessible in workplace environments where this compound is used.

Environmental Considerations Sodium dihydrogen phosphate dihydrate poses limited environmental hazards; however, care must be taken to prevent spills and release into waterways. The SDS recommends neutralizing spills with lime before disposal. It is essential to dispose of waste according to local regulations, emphasizing that chemicals should not be disposed of in the environment.

Conclusion The Safety Data Sheet for sodium dihydrogen phosphate dihydrate is an indispensable tool for ensuring the safety of individuals who handle this chemical. By adhering to the guidelines contained within the SDS, including proper handling, storage, and emergency procedures, users can mitigate potential hazards effectively. Continuous education and training on the SDS are essential, promoting a culture of safety in workplaces dealing with this important compound.