Description

Potassium Dihydrogen Orthophosphate is a high-purity inorganic salt essential for precise pH buffering and nutrient delivery in critical industrial and life science processes. Its reliable performance makes it a cornerstone chemical for applications demanding strict control over acidity and potassium/phosphorus content. This product is vital for manufacturers and researchers in the pharmaceutical, food & beverage, and agricultural sectors seeking consistent quality and supply chain reliability.

Application

• Pharmaceutical Buffer & Excipient: Used in the formulation of parenteral solutions, ophthalmic preparations, and tablet coatings to maintain precise pH stability.
• Food Additive & Nutrient: Functions as an acidity regulator, emulsifying salt, and source of potassium and phosphorus in food fortification and beverage processing.
• Fertilizer & Agricultural Solutions: Serves as a highly soluble source of phosphorus and potassium in foliar feeds, hydroponic nutrient solutions, and specialty fertilizers.
• Biochemical & Molecular Biology: A key component in buffer systems for cell culture media, protein purification, and polymerase chain reaction (PCR) protocols.
• Industrial Water Treatment: Acts as a corrosion inhibitor and scale control agent in boiler water and cooling tower treatment programs.
• Analytical Chemistry & Standard: Employed as a primary standard for acid-base titrations and in the preparation of calibration standards for analytical instruments.

Basic Information

Product Name	Potassium Dihydrogen Orthophosphate
CAS No.	7778-57-0
Molecular Formula	KH2PO4
Molecular Weight	136.09 g/mol
Synonyms	Monopotassium Phosphate; Potassium Phosphate Monobasic; MKP; Potassium Dihydrogen Phosphate; Potassium Acid Phosphate; Potassium Biphosphate; Primary Potassium Phosphate; Phosphoric Acid, Monopotassium Salt
EINECS	231-913-4

Quality Control

Our Potassium Dihydrogen Orthophosphate is manufactured under a strict quality management system. We offer various grades, including Technical, Food (FCC), and Pharmaceutical (USP/EP) grades, each produced to meet rigorous purity and consistency standards. Every batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing assay, impurity profiles, and physical specifications to ensure compliance with your application requirements.

Storage

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

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (KH2PO4)	≥ 99.0%
pH (5% solution, 25°C)	4.2 - 4.6
Loss on Drying	≤ 0.5%
Insoluble Matter	≤ 0.01%
Chloride (Cl)	≤ 0.001%
Sulfate (SO4)	≤ 0.002%
Heavy Metals (as Pb)	≤ 0.0005%
Iron (Fe)	≤ 0.001%

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