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Potassium Polymetaphosphate

Potassium polymetaphosphate (KPMP), CAS 7790-53-6, is a condensed potassium phosphate commonly represented by the formula (KPO₃)n. It is supplied as a white powder.

Food-grade material is used as an emulsifier, moisture-retaining agent, sequestrant and texturizer. Product selection should consider the phosphorus content, processing conditions and required quality standard.
  • aozun

  • KPMP

  • white powder or fibrous crystal

  • 7790-53-6

  • (KPO3)n

  • 232-212-6

Availability:

Product Description

Key Product Information

Item Specification
Product Name Potassium Polymetaphosphate
Synonyms Potassium Metaphosphate; Potassium Polyphosphate
CAS Number 7790-53-6
EC Number 232-212-6
Chemical Formula (KPO₃)n
Appearance White powder
Water Solubility Generally insoluble or sparingly soluble
Solubility in Sodium Salt Solutions Dissolves in suitable dilute sodium salt solutions

Applications of Potassium Polymetaphosphate


Food Processing

  • Moisture Retention: Helps retain moisture and support product yield in suitable food formulations.

  • Emulsion Stability: Functions as an emulsifying component in compatible processing systems.

  • Texture Control: Helps adjust texture and consistency, often as part of a phosphate blend.

Only food-grade material meeting the applicable requirements should be selected for food use.


Water Treatment

The compound acts as an effective scale inhibitor and dispersing agent in water systems, preventing the buildup of mineral deposits in pipes and industrial equipment.


Detergents and Cleaning Products

Potassium Polymetaphosphate functions as a water softener and builder in detergents, improving cleaning efficiency by controlling hardness ions.


Industrial Processing

In various industrial formulations, the compound is used as a dispersant and stabilizer, helping maintain uniform mixtures and improving product performance.



Typical Specifications



Parameter Standard Value
Purity ≥95%
P2O5 Content ≥60%
Water Insoluble ≤0.1%
pH (1% solution) 6.5 – 7.5
Appearance White powder

Specifications may vary depending on industrial grade or food-grade applications.



Packaging and Storage


Packaging Options

  • 25 kg kraft paper bag

  • 25 kg plastic woven bag

  • 1000 kg jumbo bag

  • Customized packaging available


Storage Conditions

  • Store in a cool, dry, and well-ventilated environment

  • Keep containers tightly sealed

  • Protect from moisture and humidity

  • Avoid contamination during storage and handling


Safe Handling

Avoid inhaling dust and prevent contact with eyes. Wear suitable protective gloves and safety glasses during handling. Refer to the supplied grade’s SDS for detailed precautions.


Proper storage helps maintain product stability and long shelf life.



Supply Capability


  • Stable production supply

  • Strict quality control procedures

  • COA, MSDS, and technical documents available

  • Samples available for testing

  • Professional global logistics support



Frequently Asked Questions (FAQs)


What is Potassium Polymetaphosphate used for?

Potassium Polymetaphosphate is used as a sequestrant, dispersant, and water-softening agent in food processing, water treatment, detergents, and industrial formulations.


Is Potassium Polymetaphosphate soluble in water?

Conventional high-polymerization grades are generally insoluble or sparingly soluble in water, but can dissolve in suitable dilute sodium salt solutions. Confirm the dissolution conditions for the supplied grade before formulation.


What industries commonly use Potassium Polymetaphosphate?

Industries that frequently use this compound include:

  • Food processing

  • Water treatment systems

  • Detergent manufacturing

  • Industrial chemical production


What is the main function of Potassium Polymetaphosphate in water treatment?

In water systems, it acts as a scale inhibitor and dispersing agent, helping prevent mineral buildup and improving system efficiency.


Do you provide samples?

Yes. Samples are available for laboratory testing and product evaluation before bulk purchase.


What documents are available for this product?

Standard documentation includes:

  • Certificate of Analysis (COA)

  • Material Safety Data Sheet (MSDS)

  • Technical Data Sheet (TDS)



Why Choose Our Potassium Polymetaphosphate


  • Reliable chemical supply and export experience

  • Stable quality and strict inspection standards

  • Competitive pricing for international buyers

  • Professional documentation and technical support

  • Long-term cooperation with global distributors and manufacturers



Contact Us


If you are looking for a reliable supplier of Potassium Polymetaphosphate (CAS 7790-53-6), please contact us for price quotations, specifications, or samples.


Email: lisa@aozunchem.com
WeChat / WhatsApp: +86-186 5121 5887


We welcome inquiries from distributors, manufacturers, and industrial users worldwide and look forward to building long-term cooperation.


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