Description

Fumaric Acid Potassium (CAS NO 20272-14-4) is a potassium salt of fumaric acid, valued for its role as a pH regulator and buffering agent in various industrial processes. This compound is particularly significant for its ability to provide a stable acidic environment and act as a source of bioavailable potassium. It is essential for manufacturers in the food, pharmaceutical, and chemical synthesis sectors seeking consistent quality and reliable supply for their formulations.

Application

• Food Additive: Used as an acidity regulator, flavor enhancer, and preservative in beverages, baked goods, and processed foods.
• Pharmaceutical Excipient: Serves as a buffering agent and disintegrant in tablet and capsule formulations.
• Nutraceutical & Dietary Supplements: Provides a source of potassium in mineral supplement blends.
• Chemical Synthesis: Acts as a starting material or intermediate in organic synthesis and polymer production.
• Industrial Buffers: Employed in buffer solutions for laboratory analysis and specific manufacturing processes.
• Animal Feed: Utilized as a feed acidifier to promote gut health and nutrient absorption in livestock.

Basic Information

Product Name	Fumaric Acid Potassium
CAS No.	20272-14-4
Molecular Formula	C4H3KO4
Molecular Weight	154.16 g/mol
Synonyms	Potassium Fumarate; Monopotassium Fumarate; Fumaric Acid Monopotassium Salt; Potassium Hydrogen Fumarate; E 357; FEMA 4558; (E)-But-2-enedioic acid potassium salt
EINECS	243-685-9

Quality Control

Our Fumaric Acid Potassium is produced under a rigorous quality management system. Each batch is tested to ensure it meets stringent specifications for identity, purity, and composition. We can supply material compliant with relevant standards such as FCC (Food Chemicals Codex) for food-grade applications. A comprehensive Certificate of Analysis (COA) documenting all test results is available for every shipment.

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 to prevent absorption of atmospheric moisture, which can lead to caking or degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (as C4H3KO4)	98.0% min.
pH (5% solution)	3.0 - 4.5
Loss on Drying	1.0% max.
Heavy Metals (as Pb)	10 ppm max.
Arsenic (As)	3 ppm max.

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