Salts & Minerals
REACH
Potassium tripolyphosphate
CAS Number
13845-36-8
EC Number
237-574-9
Abbreviation
KTPP
What is Potassium tripolyphosphate?
Potassium tripolyphosphate (CAS 13845-36-8), also known as KTPP or E451ii, is an inorganic polyphosphate salt.
Where is Potassium tripolyphosphate used?
- Food processing: sequestrant, buffering agent and dispersant in meat and seafood products
- Water treatment: sequesters calcium and magnesium ions, preventing scale in boilers, cooling towers and pipelines
- Textile and paper manufacturing: disperses pigments and controls hardness ions during dyeing and pulp processing
- Leather processing: buffering and softening agent during hide preparation
- It binds metal ions and stabilizes formulations where sodium-based alternatives are unsuitable.
Other Names (Synonyms)
E451ii|Pentapotassium triphosphate|potassium triphosphate|Triphosphoric acid, potassium salt (1:5)|KTPP|Triphosphoric acid, pentapotassium salt|NCS08RO8PB|Potassium triphosphate (K5P3O10)
What are the physical properties of Potassium tripolyphosphate?
Melting Point 620°C
Density 2,54 g/cm 3
Appearance White, crystalline solid. Solubility in water (26C) more than 140 g/100 m L water.
Color white
Odor odorless
Form Powder
How is Potassium tripolyphosphate classified and handled safely? Learn More
Warning
GHS07· Irritant
Hazard Statements
H302 Harmful if swallowed
H315 Causes skin irritation
H319 Causes serious eye irritation
Precautionary Statements
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P321 Specific treatment (see … on this label).