Sodium phosphate is a chemical compound made up of sodium and phosphate ions. It is commonly used in various applications, including food processing, where it acts as a preservative and acidity regulator. Sodium phosphate can also be found in some medications and is used in laboratory settings for buffering solutions. In addition to its industrial uses, sodium phosphate plays a role in agriculture as a fertilizer, providing essential nutrients to plants. It is important to handle sodium phosphate with care, as excessive consumption can lead to health issues, particularly related to kidney function and electrolyte balance.