Description

Diphosphoric Acid,Tetrapotassium Salt,Trihydrate is a high-purity potassium polyphosphate compound, serving as a versatile and efficient source of phosphorus and potassium. This material is valued for its sequestering and buffering properties, making it a critical component in formulations requiring controlled mineral release and pH stability. It is essential for manufacturers in the food, detergent, and water treatment industries seeking reliable, consistent performance.

Application

• Food Additive (E450(v)): Used as an emulsifier, stabilizer, and sequestrant in processed meats, cheeses, and powdered products.
• Detergent & Cleaning Formulations: Acts as a builder and water softener to enhance cleaning efficiency and prevent scale in industrial and institutional cleaners.
• Water Treatment: Functions as a corrosion and scale inhibitor in boiler and cooling water systems.
• Ceramic & Glass Production: Serves as a fluxing agent to lower melting temperatures and improve product durability.
• Metal Surface Treatment: Used in cleaning and phosphatizing solutions for metal pretreatment.
• Laboratory Reagent: Employed in analytical chemistry and as a buffer component in various research applications.
• Fertilizer & Agricultural Solutions: Provides a soluble source of potassium and phosphorus in specialty nutrient formulations.

Basic Information

Item	Details
Product Name	Diphosphoric Acid,Tetrapotassium Salt,Trihydrate
CAS No.	7790-67-2
Molecular Formula	K4P2O7 · 3H2O
Molecular Weight	384.38 g/mol
Synonyms	Tetrapotassium Pyrophosphate Trihydrate; Potassium Pyrophosphate Trihydrate; TKPP Trihydrate; Diphosphoric Acid Tetrapotassium Salt Trihydrate; K4P2O7·3H2O; Tetrapotassium Diphosphate Trihydrate; Food Grade E450(v); INS 450(v)
EINECS	232-212-3

Quality Control

Our Diphosphoric Acid,Tetrapotassium Salt,Trihydrate is manufactured under a strict quality management system. Each batch is tested to ensure it meets relevant specifications for food grade (FCC, E450(v)) or technical applications. A comprehensive Certificate of Analysis (COA) documenting purity, assay, and impurity levels is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after opening to prevent caking and degradation due to moisture absorption.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (K4P2O7)	≥ 98.0 %
pH (1% Solution)	10.0 - 10.8
Water Insoluble Matter	≤ 0.1 %
Loss on Drying	≤ 15.0 %
Heavy Metals (as Pb)	≤ 10 ppm
Arsenic (As)	≤ 3 ppm
Fluoride (F)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.