Description

Potassium CAS NO 7440-09-7 is a soft, silvery-white alkali metal that is highly reactive and essential in numerous industrial and chemical synthesis processes. Its powerful reducing properties and role as a key cation make it a fundamental material for producing specialty chemicals, pharmaceuticals, and advanced alloys. This elemental metal is critical for manufacturers and R&D facilities in sectors including organic synthesis, metallurgy, and energy storage, where precise material quality and reliable supply are paramount.

Application

• Chemical Synthesis: Acts as a powerful reducing agent and catalyst in organic reactions, including the Birch reduction and the production of potassium superoxide.
• Metallurgy & Alloy Production: Used as a component in specialized alloys, such as NaK (sodium-potassium alloy), which serves as a heat transfer fluid.
• Pharmaceutical Intermediates: Employed in the synthesis of various potassium-based active pharmaceutical ingredients (APIs) and fine chemicals.
• Laboratory & Research: Essential reagent in academic and industrial research laboratories for experimental chemistry and material science.
• Electronics & Energy Storage: Investigated for use in next-generation potassium-ion battery technologies and as a getter in vacuum tubes.
• Agricultural Chemicals: Serves as a precursor for manufacturing potassium-based fertilizers and other agrochemicals.

Basic Information

Product Name	Potassium
CAS No.	7440-09-7
Molecular Formula	K
Molecular Weight	39.10 g/mol
Synonyms	Potassium metal; Kalium; Elemental Potassium; Potassium, metallic; UN 2257; Potassium lump; Potassium stick; Potassium ingot
EINECS	231-119-8

Quality Control

Our Potassium metal is produced and handled under stringent quality protocols to ensure high purity and batch-to-batch consistency. We adhere to relevant industry standards and can provide material tailored to specific technical or research-grade requirements. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is available for every batch to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Due to its highly reactive nature, Potassium must be stored under an inert atmosphere (e.g., argon or mineral oil) to prevent oxidation and reaction with atmospheric moisture and oxygen. Store in a cool, dry, well-ventilated area away from incompatible materials such as water, acids, and halogens. Recommended storage temperature is below 30°C.

Specification

Item	Specification
Appearance	Silvery-white metal, stored under oil/argon
Assay (Metallic K)	≥ 99.5%
Identification (IR/Flame Test)	Conforms
Sodium (Na)	≤ 0.05%
Calcium (Ca)	≤ 0.01%
Iron (Fe)	≤ 0.001%
Nitrogen (N)	≤ 0.005%
Oxide (as K2O)	≤ 0.1%

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