Potassium polyphosphate

Potassium polyphosphate (CAS 68956-75-2), also known commercially as Rapisol, is an inorganic polyphosphate salt.

Where is Potassium polyphosphate used?

• Water treatment: inhibits scale deposition and controls corrosion in distribution systems by sequestering calcium and magnesium ions
• Food processing: sequestrant and stabilizer in processed meats, dairy products and beverages, controlling mineral activity and improving texture retention
• Agriculture: soluble potassium and phosphorus source in liquid fertilizer formulations
• Industrial cleaning and detergents: disperses hardness ions and improves performance of active ingredients in hard water
• It binds metal ions and prevents scale formation or unwanted precipitation in complex formulations.

Commercial specifications

• Bulk supply standard; smaller packaging for specialty use