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Potassium tripolyphosphate

CAS Number
13845-36-8
EC Number
237-574-9
Chemical Formula
H5O10P3.5K
Molecular Weight
448.41 g/mol

Description

Potassium tripolyphosphate (CAS 13845-36-8 ), also known as KTPP or E451ii , is an inorganic polyphosphate salt used across food processing, water treatment, and industrial applications. It functions primarily as a sequestrant, buffering agent, and dispersant. It binds metal ions and stabilizes formulations where sodium-based alternatives are unsuitable or restricted in specific chemical processes. In food processing, KTPP is approved for use in meat and seafood products. It improves water retention and texture in processed and cured preparations, ensuring high-quality results for commercial food manufacturers. Water treatment operations rely on it to sequester calcium and magnesium ions. This prevents scale formation in boilers, cooling towers, and distribution pipelines, maintaining the efficiency of industrial water systems. In textile and paper manufacturing, it disperses pigments and controls hardness ions during dyeing and pulp processing. This improves process consistency and ensures uniform color application in large-scale production. Leather processing operations use it as a buffering and softening agent during hide preparation stages. It helps manage the chemical environment to ensure the durability and quality of the final leather goods. Potassium tripolyphosphate is supplied as a white powder or granule. Food-grade material is available to the required specification, suitable for use in regulated food and beverage applications globally. Technical grade is also available for industrial water treatment and manufacturing end uses. This grade provides a cost-effective solution for non-food applications requiring high-performance sequestration and buffering. Contact us for supply of Potassium tripolyphosphate Request Quote

Other Names (Synonyms)

E451ii | Pentapotassium triphosphate | potassium triphosphate | Triphosphoric acid, potassium salt (1:5) | KTPP | Triphosphoric acid, pentapotassium salt | NCS08RO8PB | Potassium triphosphate (K5P3O10)

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point620°C
Density2,54 g/cm 3
AppearanceWhite, crystalline solid. Solubility in water (26C) more than 140 g/100 m L water.
Colorwhite
Odorodorless
FormPowder

Safety & Handling

Warning
GHS07· Irritant

Hazard Statements

H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation

Precautionary Statements

P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P321Specific treatment (see … on this label).
P330Rinse mouth.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P317Get emergency medical help.
P352IF ON SKIN: Wash with plenty of water.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.