Potassium Phosphate E340 is a group of food grade potassium phosphate additives used in beverages, dairy products, nutrition products, processed foods, buffering systems and food formulations that require potassium and phosphate support.
E340 includes three main potassium phosphate types: Monopotassium Phosphate E340(i), Dipotassium Phosphate E340(ii) and Tripotassium Phosphate E340(iii). Although they all belong to potassium phosphates, they have different pH behavior, functions and suitable applications.
GJ Phosphate supplies food grade potassium phosphate E340 products for food manufacturers, importers and distributors. We can support product selection, specification confirmation, COA/MSDS, sample support, export packaging and quotation according to your application requirements.
- Food grade potassium phosphate E340 supply
- Available types include MKP, DKP and tripotassium phosphate
- Suitable for beverages, dairy, nutrition, food processing and buffering applications
- COA, MSDS, specification sheet and export documents available upon request
- Quotation support for food manufacturers, importers and distributors
Request E340 COA/MSDS & Quotation
What Is Potassium Phosphate E340?
Potassium phosphate E340 is the food additive code for potassium salts of phosphoric acid. These ingredients are used in food processing because they can provide buffering, pH control, emulsification support, mineral fortification, stabilization and texture improvement depending on the exact type.
The three main forms of potassium phosphate E340 are:
- Monopotassium Phosphate E340(i), also known as MKP or potassium dihydrogen phosphate
- Dipotassium Phosphate E340(ii), also known as DKP or dipotassium hydrogen phosphate
- Tripotassium Phosphate E340(iii), also known as TKP or tripotassium phosphate
These products are not always interchangeable. The correct choice depends on pH target, food system, protein stability, solubility, taste, regulatory requirements and the final application.
Potassium Phosphate E340 Types Comparison
| E Number | Product Name | Common Abbreviation | Typical Function |
|---|---|---|---|
| E340(i) | Monopotassium Phosphate | MKP | Acidic buffer, potassium source, beverage and nutrition applications |
| E340(ii) | Dipotassium Phosphate | DKP | Buffering agent, protein stabilizer, dairy and creamer applications |
| E340(iii) | Tripotassium Phosphate | TKP | Alkaline phosphate, pH adjustment and selected food processing applications |
What Does Potassium Phosphate E340 Do in Food?
Potassium phosphate E340 can perform several functions in food systems. The exact function depends on whether the product is monopotassium phosphate, dipotassium phosphate or tripotassium phosphate.
1. Buffering Agent
Potassium phosphate E340 can help regulate and stabilize pH in food and beverage systems. This is important for maintaining product stability, taste, texture and shelf-life performance.
MKP is more suitable for mildly acidic systems, while DKP and TKP are more suitable for neutral or alkaline buffering needs.
2. Potassium Source
Potassium phosphate E340 can provide potassium and phosphate in nutrition products, fortified beverages, sports drinks and selected food formulations.
For buyers, it is important to confirm the exact potassium phosphate type and grade according to the product label, formula and destination market requirements.
3. Emulsification and Stabilization Support
Some potassium phosphates can help support emulsion stability and texture control in dairy products, creamers, sauces and processed food systems.
Dipotassium phosphate is especially relevant in dairy, coffee creamer and protein-containing systems because it can help support buffering and protein stability.
4. Texture Improvement
Potassium phosphate E340 may help improve texture and mouthfeel in selected food products. Its effect depends on the formula, dosage, pH, protein system and other ingredients.
5. Food Processing Stability
In processed foods, potassium phosphate can help maintain consistency and reduce instability caused by pH drift, mineral interaction or protein sensitivity.
Monopotassium Phosphate E340(i)
Monopotassium Phosphate E340(i), also known as MKP, is an acidic potassium phosphate. It is commonly considered for applications where mild acidity, potassium supply and phosphate buffering are required.
Typical applications may include:
- Clear beverages
- Sports drinks
- Functional drinks
- Nutrition products
- Acidic food systems
- Selected food processing applications
MKP is also widely known in agriculture as a water-soluble phosphorus and potassium source, but food applications require food grade material and proper compliance documents.
Dipotassium Phosphate E340(ii)
Dipotassium Phosphate E340(ii), also known as DKP, is a weakly alkaline potassium phosphate. It is commonly used where buffering, protein stability and pH control are important.
Typical applications may include:
- Dairy products
- Coffee creamers
- Milk-based beverages
- Plant-based beverages
- RTD protein drinks
- Processed food systems requiring buffering
DKP is often more suitable than MKP in protein-containing products because the pH environment can strongly affect protein solubility and product stability.
Tripotassium Phosphate E340(iii)
Tripotassium Phosphate E340(iii), also known as TKP, is a more alkaline potassium phosphate. It may be used in selected food systems where stronger pH adjustment or alkaline buffering is required.
Because TKP has a different pH profile from MKP and DKP, buyers should clearly confirm the application and formulation requirements before selecting it.
MKP vs DKP: How to Choose the Right Potassium Phosphate
Monopotassium phosphate and dipotassium phosphate are two common potassium phosphate products, but they are not the same in real applications.
MKP is acidic. It is usually more suitable for clear beverages, sports drinks, functional drinks and acidic food systems.
DKP is weakly alkaline. It is usually more suitable for dairy products, coffee creamers, protein drinks and food systems that need protein stabilization and buffering.
If you are comparing MKP and DKP for your formulation, read our detailed guide: Monopotassium Phosphate vs Dipotassium Phosphate
Food Applications of Potassium Phosphate E340
Food grade potassium phosphate E340 can be used in different applications depending on the exact type and local food additive regulations.
| Application | Suitable E340 Type | Main Function |
|---|---|---|
| Clear beverages | MKP / E340(i) | Potassium source, acidic buffering and pH support |
| Sports drinks | MKP / E340(i) | Electrolyte and phosphate source |
| Coffee creamer | DKP / E340(ii) | Buffering, protein stability and mouthfeel support |
| Dairy beverages | DKP / E340(ii) | Protein stabilization and pH control |
| RTD protein drinks | DKP / E340(ii) | Protein stability and buffering support |
| Processed foods | MKP, DKP or TKP | pH control, stabilization and texture support depending on formula |
How to Choose Food Grade Potassium Phosphate E340
Before purchasing potassium phosphate E340, buyers should confirm both technical requirements and compliance requirements.
Important selection factors include:
- Exact E340 type: E340(i), E340(ii) or E340(iii)
- Product name: MKP, DKP or TKP
- Food grade compliance
- Application: beverage, dairy, nutrition, food processing or other use
- Required function: buffering, pH control, potassium source, protein stability or texture support
- pH value
- Solubility
- Assay and phosphate content
- Heavy metal limits
- Fluoride and insoluble matter limits
- COA, MSDS and specification availability
- Packaging, shelf life and storage conditions
- Destination market regulations
GJ Phosphate can help confirm a suitable potassium phosphate E340 product according to your application, target function and destination market.
Documents Available for E340 Buyers
For food manufacturers, importers and distributors, documentation is important before purchase confirmation. GJ Phosphate can support common export and quality documents.
- Certificate of Analysis, COA
- Material Safety Data Sheet, MSDS
- Technical Data Sheet or specification sheet
- Food grade declaration
- Packing information
- Commercial invoice and packing list for shipment
Is Potassium Phosphate E340 Safe?
Food grade potassium phosphate E340 is used in food processing where permitted by applicable food regulations. Finished food manufacturers should follow the permitted usage level, labeling rules and food additive requirements of the destination market.
For industrial buyers, it is important to confirm product grade, specification, COA, MSDS, heavy metal limits and compliance documents before use.
Related Applications & Guides
- Monopotassium Phosphate vs Dipotassium Phosphate – compare MKP and DKP in pH behavior, food applications, beverage stability and product selection.
FAQ About Potassium Phosphate E340
What is potassium phosphate E340?
Potassium phosphate E340 is a group of potassium phosphate food additives. It includes monopotassium phosphate E340(i), dipotassium phosphate E340(ii) and tripotassium phosphate E340(iii).
What is the difference between E340(i), E340(ii) and E340(iii)?
E340(i) is monopotassium phosphate, E340(ii) is dipotassium phosphate and E340(iii) is tripotassium phosphate. They have different pH behavior and are suitable for different food applications.
Is MKP the same as DKP?
No. MKP is monopotassium phosphate and DKP is dipotassium phosphate. MKP is acidic, while DKP is weakly alkaline. They should not be replaced with each other without formulation testing.
Which potassium phosphate is used in beverages?
MKP is often used in clear or acidic beverage systems where potassium and phosphate support are required. The final choice should be confirmed according to the formula and target market regulations.
Which potassium phosphate is used in coffee creamer?
DKP is commonly considered for coffee creamer and protein-containing systems because it can support buffering, protein stability and mouthfeel.
What documents can GJ Phosphate provide for E340 buyers?
GJ Phosphate can provide COA, MSDS, specification sheet, food grade declaration and packing information depending on the product type and order requirements.
Can GJ Phosphate supply food grade potassium phosphate E340?
Yes. GJ Phosphate can supply food grade potassium phosphate E340 products, including MKP, DKP and tripotassium phosphate. Specifications, COA/MSDS, sample support and quotation are available upon request.
Request Potassium Phosphate E340 Quotation
Need food grade potassium phosphate E340 for beverages, dairy, nutrition products or food processing?
Contact GJ Phosphate to get product specifications, COA/MSDS, sample support and quotation.
