Food grade Potassium Phosphate Dibasic CAS 7758-11-4

 What is Potassium Phosphate Dibasic?

Potassium Phosphate Dibasic , also known as dipotassium phosphate , is an inorganic salt composed of potassium ions and hydrogen phosphate ions. It belongs to the potassium salt phosphate family.

Its common chemical formula is:

K2HPO 4

In water, it can dissociate into:

K2HPO4→2K++HPO42− K 2 HPO 4 → 2K + +HPO 42−

in:

· K + represents potassium ions;

· HPO42− represents hydrogen phosphate ions.

Potassium Phosphate Dibasic, along with potassium dihydrogen phosphate and tripotassium phosphate, belongs to the potassium phosphate series, but their acidity/alkalinity and application focus differ.

Food-grade Potassium Phosphate Dibasic is typically a white powder, granules, or crystalline substance that is readily soluble in water, and its aqueous solution is weakly alkaline. It possesses good pH-regulating and buffering capabilities and is commonly found in beverages, dairy products, and protein systems.

Food-grade Potassium Phosphate Dibasic typically has the following characteristics:

· White or off-white powder/granules ;

· Easily soluble in water ;

· The aqueous solution is weakly alkaline ;

· It contains potassium and phosphate ;

· It has good buffering capacity ;

· It can be used as an acidity regulator ;

· It can stabilize proteins and emulsion systems ;

· It can be used as a potassium and phosphorus source in nutrient formulations ;

· It can participate in compound phosphate systems ;

· Food-grade products must strictly control indicators such as heavy metals, arsenic, lead, fluoride, and insoluble matter .

What are the main uses of food-grade Potassium Phosphate Dibasic?

The core uses of food-grade Potassium Phosphate Dibasic include acidity regulation, buffering, emulsion stabilization, protein stabilization, potassium and phosphorus supplementation, and synergistic effects with compound phosphates .

1. Acidity regulator

Potassium Phosphate Dibasic aqueous solution is weakly alkaline and can be used to adjust the pH of food systems.

Main function:

· Adjusting the pH of food;

· Neutralizes some of the acidic components;

· Stabilize product pH;

· Improve flavor balance;

· Affects protein state;

· Improve the stability of food processing.

Possible applications:

· drinks;

· Dairy products;

· condiment;

· Meat products;

· Aquatic products;

· Compound food additives;

· Nutritional supplement products.

2. Buffer

Phosphate systems have good buffering capacity. Potassium Phosphate Dibasic can be combined with acidic phosphates such as potassium dihydrogen phosphate to form phosphate buffer systems.

Main function:

· Resistant to pH fluctuations;

· Stabilize the product's acid and alkaline environment;

· Reduce protein precipitation;

· Improve thermal working stability;

· Stabilize the taste of beverages;

· Improve shelf-life performance.

Typical applications:

· Protein drinks;

· Dairy beverages;

· Sports drinks;

· Solid beverages;

· Fermented products;

· Seasoning sauce.

3. Potassium source

Potassium Phosphate Dibasic contains potassium and can be used as a source of potassium in food.

The significance of potassium in nutrition

Potassium is one of the essential minerals for the human body and participates in:

· Maintain normal electrolyte balance;

· Involved in nerve conduction;

· Involved in muscle function;

· Maintaining cell osmotic pressure;

· Together with sodium, it affects fluid balance.

Therefore, Potassium Phosphate Dibasic can be used to supplement potassium in sports drinks, electrolyte products, and some fortified foods.

4. Phosphorus source

Potassium Phosphate Dibasic also contains phosphates, which can provide phosphorus to the formulation.

Phosphorus participation:

· Composed of bones and teeth;

· ATP energy metabolism;

· Cell membrane structure;

· Acid-base balance;

· Nucleic acid composition.

In some mineral-fortified formulations, it can serve as a dual source of potassium and phosphorus.

5. Emulsion stabilizers

Potassium Phosphate Dibasic can be used as part of an emulsifying salt system in processed cheeses, cheese sauces, and certain emulsified foods.

Main function:

· Promotes casein dispersion;

· Improve fat emulsification;

· Reduce oil-water separation;

· Improve cheese texture;

· Improve melting properties;

· Improves sliceability and spreadability.

Potassium salts and phosphates have certain applications in low-sodium cheese or products where the sodium-potassium ratio needs to be adjusted.

6. Protein stabilizing agents

Potassium Phosphate Dibasic helps stabilize protein systems by adjusting pH and ionic strength.

Main function:

· Reduce protein flocculation;

· Improve protein dispersion;

· Improve thermal stability;

· Improve the taste of dairy beverages;

· Stable plant-based protein beverages;

· Improve the shelf-life stability of protein beverages.

Possible applications:

· Milk protein drinks;

· Plant-based protein drinks;

· Protein powder instant drinks;

· Compound nutritional beverage;

· Dairy products.

7. Moisture retention and texture improvement

In meat and aquatic products, Potassium Phosphate Dibasic can participate in water retention and texture improvement as part of compound phosphates.

Main function:

· Improve the water-holding capacity of proteins;

· Reduce processing losses;

· Improves tenderness and juiciness;

· Improves the elasticity of fish paste or minced meat;

· Improve freezing and thawing stability.

However, in practice, meat products often use a combination of multiple phosphates, and using a single phosphate may not necessarily achieve the best results.

8. Alternative salts in low-sodium or reduced-sodium formulations

Because Potassium Phosphate Dibasic provides potassium ions rather than sodium ions, it can be used to replace some sodium phosphates in some low-sodium or reduced-sodium food formulations.

Potential advantages:

· Reduce sodium intake;

· Increase potassium sources;

· Adjust the sodium-potassium ratio;

· Maintain some phosphate function;

· Support the development of salt-reducing products.

Precautions:

Potassium salts can impart a slightly bitter, metallic, or aftertaste, so they usually need to be balanced with flavorings, acidulants, sweeteners, or other salts.

9. Key components of compound phosphates

Compound phosphates are commonly used in the food industry. Potassium Phosphate Dibasic can be used in combination with other phosphates.

Commonly used compatibility pairs include:

· Potassium dihydrogen phosphate;

· Disodium hydrogen phosphate;

· Sodium tripolyphosphate;

· Sodium pyrophosphate;

· Sodium hexametaphosphate;

· citrate;

· Other potassium or sodium salts phosphates.

Purpose of compounding:

· Adjust pH;

· Enhanced buffering capacity;

· Improve protein stability;

· Improve water retention;

· Improve emulsification effect;

· Balance the sodium-potassium ratio;

· Optimize flavor and processing performance.

Summarize

Potassium Phosphate Dibasic , also known as dipotassium hydrogen phosphate , is a common potassium phosphate salt with the chemical formula :

K 2 HPO 4

It is readily soluble in water, and its aqueous solution is weakly alkaline. It has good acidity regulation and buffering capacity, and can also provide potassium and phosphate.

In our daily lives, we may come into contact with food-grade Potassium Phosphate Dibasic through the following products:

· Sports drinks and electrolyte drinks;

· Protein drinks and dairy products;

· Cheese and processed cheese;

· Meat products and aquatic products;

· Solid beverages and nutritional powders;

· Seasonings and compound seasonings;

· Dietary supplements and special dietary foods.

The main uses of food-grade Potassium Phosphate Dibasic include:

· Acidity regulator;

· Buffer;

· Potassium source;

· Phosphorus source;

· Emulsion stabilizers;

· Protein stabilizing aids;

· Moisture retention and texture improvement;

· Alternative salts in low-sodium or reduced-sodium formulations;

· An important component of compound phosphates.

Finally, it must be emphasized that food-grade Potassium Phosphate Dibasic must be used within limits according to food regulations and standards; industrial-grade products cannot be used in food processing or for human consumption. For food companies, selecting compliant food-grade raw materials, accurately controlling potassium and phosphate content, paying attention to taste and formulation compatibility, and conducting application testing and labeling compliance are key to the safe and effective use of dipotassium hydrogen phosphate.