Description

Dipotassium Disodium Diphosphate is a high-purity, inorganic phosphate salt widely used as a versatile functional ingredient. This compound is valued for its excellent buffering, sequestering, and emulsifying properties in complex formulations. It is essential for manufacturers in the food processing, detergent, and industrial water treatment sectors seeking reliable and consistent performance.

Application

• Food Industry: Acts as an emulsifying salt in processed cheese, a buffering agent in beverages, and a stabilizer in meat and seafood products to improve texture and moisture retention.
• Detergent & Cleaning Formulations: Serves as a builder and sequestering agent to soften water, enhance cleaning efficiency, and prevent scale deposition in industrial and institutional cleaners.
• Water Treatment: Used as a corrosion inhibitor and scale control agent in boiler and cooling water systems to protect industrial equipment.
• Industrial Processes: Functions as a dispersing agent in ceramic production, a buffering agent in electroplating baths, and a peptizing agent in various chemical manufacturing processes.
• Pharmaceutical & Cosmetic Auxiliary: Employed as a pH adjuster and sequestrant in certain topical formulations and personal care products where high purity is required.

Basic Information

Item	Detail
Product Name	Dipotassium Disodium Diphosphate
CAS No.	15491-89-1
Molecular Formula	K2Na2P2O7
Molecular Weight	324.08 g/mol
Synonyms	Tetrapotassium Diphosphate; Potassium Sodium Pyrophosphate; Diphosphoric Acid, Tetrapotassium Salt; Tetrapotassium Diphosphate; TKPP (Tetrapotassium Pyrophosphate) variant; INS No. 450(v); E450(v); Food Grade Phosphate; Technical Grade Pyrophosphate
EINECS	239-550-2

Quality Control

Our Dipotassium Disodium Diphosphate is manufactured under a strict quality management system. Production adheres to relevant food-grade specifications such as FCC (Food Chemicals Codex) and is compliant with global regulations including REACH. Every batch is accompanied by a comprehensive Certificate of Analysis (COA) to ensure traceability and confirm specifications for purity, heavy metals, and other critical parameters.

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 material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after opening to prevent caking and degradation due to atmospheric moisture.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (as K2Na2P2O7)	≥ 96.0 %
pH (1% Solution)	9.5 - 10.5
Loss on Drying	≤ 0.5 %
Water Insoluble Matter	≤ 0.2 %
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.