Description

Potassium Sodium Alloy is a highly reactive, low-melting eutectic alloy of potassium and sodium, typically denoted as NaK. This material is valued for its exceptional heat transfer properties and strong reducing capabilities. It serves as a critical reagent and heat exchange fluid in advanced industrial and research applications, particularly where a liquid metal medium is required at or near room temperature. Key sectors utilizing this alloy include specialized chemical synthesis, aerospace, and nuclear reactor technologies.

Application

• Heat Transfer Fluid: Used as a coolant in specialized nuclear reactors, high-performance computing systems, and aerospace thermal management due to its high thermal conductivity and low melting point.
• Chemical Synthesis & Catalyst: Acts as a powerful reducing agent and catalyst in organic synthesis for dehalogenation, Birch reductions, and the production of fine chemicals and pharmaceuticals.
• Drying Agent for Solvents: Employed to rigorously dry and purify ethers and other organic solvents by reacting with trace water and oxygen.
• Gettering & Oxygen Scavenging: Used in vacuum systems and inert atmosphere gloveboxes to remove trace oxygen and moisture, maintaining ultra-pure environments.
• Research & Development: Essential in materials science research, electrochemistry, and for studying alkali metal reactions.
• Intermediate for Alloy Production: Serves as a precursor or component in the manufacturing of other specialized metal alloys.

Basic Information

Product Name	Potassium Sodium Alloy
CAS No.	11135-81-2
Molecular Formula	K-Na (Eutectic mixture)
Molecular Weight	Varies by composition
Synonyms	Sodium-Potassium Alloy; NaK; Nack; Alkali Metal Alloy; Potassium-Sodium Eutectic; Liquid Metal Alloy; Eutectic Sodium Potassium; KNa Alloy
EINECS	234-400-4

Quality Control

Our Potassium Sodium Alloy is produced and handled under stringent quality protocols to ensure batch-to-batch consistency and performance reliability. Quality is verified through analysis of key parameters including composition ratio (typically the eutectic 77% K / 23% Na by weight), reactivity, and the absence of significant metallic impurities. A Certificate of Analysis (COA) detailing specific lot results is provided with each shipment. Our quality management system supports compliance with relevant industrial and research standards.

Storage

Preserve in a tightly closed container, protected from light. Due to its highly reactive nature, this alloy must be stored under an inert atmosphere (e.g., argon or nitrogen) in sealed, moisture-proof ampoules or containers. Store in a cool, dry, well-ventilated area away from heat, sparks, and open flames. Keep away from water, acids, alcohols, and oxidizing agents. Recommended storage temperature is below 30°C. Always refer to the Safety Data Sheet (SDS) for complete handling and storage instructions.

Specification

Item	Specification
Appearance	Silvery liquid metal
Composition (Potassium)	76 - 78 %
Composition (Sodium)	22 - 24 %
Melting Point	-12.6 °C (approx.)
Density	0.866 g/cm³ at 20°C (approx.)
Assay (Active Metal)	> 99.5 %
Impurities (Heavy Metals)	< 0.01 %
Packaging	Sealed under argon in ampoules or drums

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