Polyphosphate: The Invisible Guardian of Home Appliances and Industrial Equipment, Preventing Scale and Corrosion

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Update time:2025-09-25


Polyphosphates are used in several very different contexts:

1) Food industry: as additives (e.g., sodium tripolyphosphate) to improve texture, water retention, or prevent oxidation in meat, seafood, and dairy.

2) Water treatment: to prevent scale and corrosion in pipes, or to sequester iron and manganese.

3) Detergents/cleaning: as builders that soften water and improve cleaning efficiency.

4) Biological/medical research: polyphosphate (polyP) is studied as an energy store, signaling molecule, or anticoagulant.

5) Industrial processes: in ceramics, flame retardants, fertilizers, etc.

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Each application involves very different dosages, preparation methods, and safety precautions. Regarding the antiscalant balls produced by the Aquavow factory, they are mainly used for scale prevention in household or commercial water systems. One gram of the balls can treat 2–4 tons of water, making them very cost-effective. For household water and home appliance scale prevention, you may refer to the following dosing table:

If you need a detailed dosage table, please contact us.


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Home Appliances

Washing Machines & Dishwashers

Polyphosphate is used in water filter cartridges or dosing units.

Prevents scale buildup on heating elements and pipes.

Improves efficiency and extends appliance lifespan.


Coffee Machines & Boilers

Small polyphosphate filters (often in cartridges) prevent limescale in boilers and coffee makers.

Maintains heating efficiency and water taste.

Industrial Applications

Water Treatment Systems

Added to water to inhibit corrosion in pipelines, boilers, and cooling towers.

Prevents scale formation from calcium and magnesium.

Stabilizes iron and manganese, avoiding staining.

Boilers & Heat Exchangers

Polyphosphates protect metal surfaces by forming a thin protective film.

Keeps heat transfer surfaces clean and efficient.

Textile & Paper Industry

Used as a dispersing agent fordyes and fillers.

Improves quality and prevents deposits on machinery.

Detergent & Cleaning Industry

Industrial cleaning formulations (especially for metal surfaces) use polyphosphates to bind hardness ions and boost cleaning power.


Machines & Engineering

Cooling Systems (e.g., HVAC, refrigeration)

Polyphosphate treatment prevents corrosion and scaling in pipes and compressors.

Automotive & Metalworking

Sometimes used in metal treatment baths to prevent rust and aid surface processing.




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