Description

Potassium Dihydrogen Citrate is a potassium salt of citric acid, widely recognized for its buffering capacity and biocompatibility. This compound is essential for precise pH control and as a source of bioavailable potassium in various formulations. It serves as a critical raw material for manufacturers in the pharmaceutical, food & beverage, and nutraceutical industries seeking consistent quality and reliable supply.

Application

• Pharmaceutical Excipient: Used as a buffering agent, pH adjuster, and potassium source in tablet, capsule, and liquid formulations.
• Food & Beverage Additive: Functions as an acidity regulator, stabilizer, and sequestrant in processed foods, beverages, and dietary supplements.
• Nutraceutical Ingredient: Serves as a key component in electrolyte replacement products and potassium-fortified supplements.
• Laboratory Reagent: Employed in biochemical research and analytical chemistry as a buffer component for maintaining specific pH ranges.
• Industrial Processes: Acts as a chelating agent and mild acidulant in certain cleaning formulations and specialty chemical synthesis.

Basic Information

Product Name	Potassium Dihydrogen Citrate
CAS No.	866-83-1
Molecular Formula	C6H7KO7
Molecular Weight	230.21 g/mol
Synonyms	Monopotassium Citrate; Potassium Citrate Monobasic; Citric Acid Monopotassium Salt; 1-Hydroxy-1,2,3-propanetricarboxylic Acid Monopotassium Salt; Tripotassium Citrate Monohydrate (common misnomer); E 332(ii) (food additive code); Potassium Hydrogen Citrate; Monopotassium Salt of Citric Acid
EINECS	212-755-5

Quality Control

Our Potassium Dihydrogen Citrate is manufactured under a strict quality management system. It can be produced to meet various pharmacopoeial standards such as USP, EP, or BP, as well as food-grade specifications like FCC. Every batch is accompanied by a comprehensive Certificate of Analysis (COA) verifying identity, purity, and compliance with agreed specifications.

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). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (Titration)	99.0% - 101.0%
pH (5% Solution)	3.5 - 4.5
Water (Karl Fischer)	≤ 1.0%
Heavy Metals (as Pb)	≤ 10 ppm
Chloride (Cl)	≤ 50 ppm
Sulfate (SO4)	≤ 150 ppm
Oxalate	Passes test
Readily Carbonizable Substances	Passes test

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