Overview
Potassium phosphate (K3PO4) is an inorganic compound commonly used in various industrial and food applications. It is a highly soluble salt that serves as a buffering agent, nutrient, and emulsifier. As a tribasic salt, it neutralizes acids effectively, making it valuable in pharmaceuticals and food processing. Its alkaline nature also lends itself to applications in water treatment and agriculture.
Physical and Chemical Properties
Potassium phosphate appears as a white, odorless crystalline powder with a density of 2.564 g/cm³. It has a high melting point of 1340°C and is highly soluble in water. The compound is hygroscopic, meaning it readily absorbs moisture from the air. This property requires careful storage to maintain its stability. Its alkaline pH makes it useful in neutralizing acidic solutions.
Main Applications
In the food industry, potassium phosphate is used as an emulsifier and stabilizer in processed cheeses, meats, and beverages. It helps regulate acidity and improve texture. In agriculture, it serves as a high-phosphate fertilizer, promoting plant growth. The pharmaceutical industry utilizes it as a buffering agent in medications, while water treatment plants employ it to prevent scale formation.
Safety and Storage
Potassium phosphate can cause irritation to skin, eyes, and respiratory tract upon contact or inhalation. Proper PPE including gloves and goggles should be worn when handling. The compound should be stored in airtight containers in a cool, dry environment away from acids and moisture. Spills should be cleaned immediately with appropriate protective measures.
B2B Procurement Guide
When sourcing potassium phosphate, verify the supplier's ISO or GMP certifications to ensure product quality. Request certificates of analysis for purity (typically 95-99%). Consider packaging options - 25kg bags are common for industrial use. For large-scale procurement, negotiate bulk pricing and confirm lead times. Always check compatibility with your intended application.
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