CAS · 7778-53-2
Product Overview
Potassium phosphate丨7778-53-2, refers to a group of inorganic salts composed of potassium cations (K⁺) and phosphate anions (PO₄³⁻). The most common forms are monopotassium phosphate (KH₂PO₄), dipotassium phosphate (K₂HPO₄), and tripotassium phosphate (K₃PO₄). These compounds are widely used in food, pharmaceuticals, agriculture, and industrial applications due to their buffering, nutritional, and chemical properties.
Product Specifications
| Property | Specification |
|---|---|
| Grade | GB |
| Appearance | White to Off-white powder |
| Assay | 97% (on dried basis) |
| pH (1g/100ml solution) | 11.5 - 12.5 |
| As (mg/kg) | 3.0 max |
| Heavy metal (Pb, mg/kg) | 10.0 max |
| Pb (mg/kg) | 2.0 max |
| F (mg/kg) | 10.0 max |
| Water Insolubles (w/%) | 0.2% max |
| Residue on ignition (w/%) | 5.0% max |
Applications
1. Food Industry:
- Food Additive: Potassium phosphate is used as a food additive (E340) to regulate acidity, improve texture, and act as an emulsifier in processed foods such as cheeses, meats, and baked goods.
- Nutrient Supplement: It is added to foods and beverages as a source of potassium and phosphorus, essential minerals for human health.
- Stabilizer: It helps stabilize and extend the shelf life of food products by preventing spoilage and maintaining consistency.
2. Pharmaceuticals:
- Buffering Agent: Potassium phosphate is used in pharmaceutical formulations to maintain the pH of drugs, particularly in injectable solutions and oral medications.
- Electrolyte Replacement: It is used in intravenous (IV) solutions and oral rehydration salts to replenish electrolytes in patients with deficiencies.
3. Agriculture:
- Fertilizer: Potassium phosphate is used as a fertilizer to provide potassium and phosphorus, essential nutrients for plant growth and development.
- Soil Amendment: It helps improve soil quality and nutrient availability, promoting healthier crops.
4. Industrial Applications:
- Water Treatment: Potassium phosphate is used in water treatment processes to control pH and prevent corrosion in boilers and cooling systems.
- Detergents and Cleaners: It is used in detergents and cleaning products as a water softener and buffering agent.
5. Laboratory and Research:
- Buffer Solutions: Potassium phosphate is commonly used to prepare buffer solutions for biochemical and molecular biology experiments, ensuring stable pH conditions.
- Reagent: It is used as a reagent in chemical synthesis and analytical chemistry.
Benefits
1. Buffering Capacity:
- Potassium phosphate is an effective buffering agent, maintaining stable pH levels in food, pharmaceuticals, and laboratory applications.
2. Nutritional Value:
- It provides essential nutrients (potassium and phosphorus) in food and agricultural applications, supporting human health and plant growth.
3. Versatility:
- Its applications span multiple industries, including food, pharmaceuticals, agriculture, and industrial processes, highlighting its versatility.
4. Stability and Solubility:
- Potassium phosphate is highly soluble in water and stable under a wide range of conditions, making it easy to incorporate into various formulations.
5. Cost-Effectiveness:
- As a commercially available compound, potassium phosphate is relatively inexpensive, making it accessible for industrial and research use.
Conclusion
Potassium phosphate丨7778-53-2 is a versatile and widely used compound with applications in the food industry, pharmaceuticals, agriculture, and industrial processes. Its buffering capacity, nutritional value, and stability make it an indispensable tool in various fields. While it is generally safe, proper handling and application practices are essential to ensure its benefits are realized without adverse effects. As industries continue to evolve, potassium phosphate will remain a key component in the development of food products, medicines, fertilizers, and more.
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