Description

Dipotassium Hydrogen Phosphate Trihydrate is a high-purity inorganic salt widely used as a buffering agent, nutrient source, and sequestrant. Its consistent quality and reliable performance make it a critical raw material for ensuring process stability and product efficacy in sensitive formulations. This compound is essential for manufacturers in the pharmaceutical, food & beverage, and industrial biotechnology sectors seeking a dependable source of potassium and phosphate ions.

Application

• Pharmaceutical Buffer & Excipient: Used in the formulation of injectables, oral solutions, and tablet coatings to maintain precise pH levels.
• Food Additive (E340(ii)): Functions as an emulsifier, stabilizer, and pH regulator in processed foods, dairy products, and beverages.
• Microbial Culture Media: Serves as a key source of potassium and phosphorus in nutrient broths and agars for laboratory and fermentation processes.
• Water Treatment Chemical: Acts as a corrosion inhibitor and scale prevention agent in boiler water and industrial cooling systems.
• Analytical Reagent: Employed in analytical chemistry for buffer preparation and as a standard in various titrimetric methods.
• Fertilizer & Agricultural Input: Provides a highly soluble source of potassium and phosphate in specialty fertilizers and hydroponic nutrient solutions.

Basic Information

Product Name	Dipotassium Hydrogen Phosphate Trihydrate
CAS No.	16788-57-1
Molecular Formula	K2HPO4·3H2O
Molecular Weight	228.22 g/mol
Synonyms	Dipotassium Phosphate Trihydrate; Potassium Phosphate Dibasic Trihydrate; Dipotassium Monohydrogen Phosphate Trihydrate; sec-Potassium Phosphate Trihydrate; K2HPO4·3H2O; E340(ii); Food Grade Dipotassium Phosphate; Phosphoric Acid, Dipotassium Salt, Trihydrate
EINECS	240-213-8

Quality Control

Our Dipotassium Hydrogen Phosphate Trihydrate is manufactured under a strict quality management system. We offer grades compliant with USP-NF, FCC, and ACS standards, ensuring suitability for demanding applications. Every batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles to guarantee traceability and consistency.

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) and must be kept in original packaging or a moisture-proof container to prevent caking and degradation.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (K2HPO4·3H2O)	≥ 98.0 %
pH (5% solution, 25°C)	8.5 - 9.6
Loss on Drying	19.0 - 22.0 %
Insoluble Matter	≤ 0.01 %
Chloride (Cl)	≤ 0.001 %
Sulfate (SO4)	≤ 0.002 %
Heavy Metals (as Pb)	≤ 5 ppm
Arsenic (As)	≤ 3 ppm

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