Dipotassium phosphate

Dipotassium phosphate (chemical formula: K₂HPO₄) is an inorganic compound, a dipotassium salt of phosphoric acid, belonging to the potassium phosphate series. Below is detailed information about it:

Basic Properties

1. Chemical formula: K₂HPO₄  

2. Molar mass: 174.18 g/mol  

3. Appearance: White crystals or powder, highly soluble in water.  

4. pH: Aqueous solution is weakly alkaline (1% solution pH approximately 9-10).  

Main Applications

1. Food Industry

   - Food additive: Used as a buffer, emulsifier, nutritional supplement (source of potassium and phosphorus).  

   - Applied in dairy products, meat products, beverages, etc., to regulate acidity or stabilize texture.  

2. Agriculture  

   - Fertilizer: Provides phosphorus and potassium elements to promote plant growth.  

3. Biology and Medicine  

   - Buffer: Used in biological experiments such as cell culture, PCR (e.g., preparation of PBS buffer).  

   - Pharmaceutical excipient or pH regulator.  

4. Others

   - Water treatment agent, raw material for flame retardants, etc.  

Precautions

1. Safety: Low toxicity, but high concentrations may irritate the skin or eyes.  

2. Storage: Keep sealed and moisture-proof, avoid contact with acidic substances.