Lithium Potassium ChlorideCAS #: 65567-96-6

Synonyms 

Lithium chloride/potassium chloride eutectic; Lithium potassium chloride (1:1:2), lithium chloride-potassium chloride, LiCl-KCl

Compound Formula: Cl2KLi 

Molecular Weight: 116.95 

Appearance: White beads 

Melting Point: 357 °C 

Boiling Point: N/A 

Density: 2.02 g/cm3 

Solubility in H2O: N/A 

Exact Mass: 115.917417 

Monoisotopic Mass: 115.917417

Product Introduction: Generic High-Performance Fluorinated Salt

This high-performance fluorinated salt, a representative of advanced inorganic compounds, is engineered for versatility across demanding industrial and research applications. Composed of a metal cation and a fluorinated anion, it combines exceptional chemical stability, high ionic conductivity, and thermal resilience—properties that make it a cornerstone material in energy storage, catalysis, and advanced materials science. While specific identifiers such as a CAS number are not available, its characteristics align with leading fluorinated salts, offering a balance of reactivity and stability that addresses critical challenges in modern technology.

Chemical & Physical Properties

This fluorinated salt exhibits a suite of properties tailored to high-tech environments:

Solubility: Highly soluble in polar solvents, including water (150–250 g/100 mL at 25°C), methanol, and acetonitrile. This solubility enables the formation of high-concentration electrolytes (up to 3 M in organic solvents), supporting efficient ion transport in electrochemical systems.

Thermal Stability: Maintains stability at temperatures exceeding 300°C, far outperforming traditional salts. This resilience allows operation in high-heat processes such as industrial catalysis and extreme-environment energy storage.

Hygroscopicity: Moderately hygroscopic, absorbing minimal moisture under ambient conditions without undergoing hydrolysis. This trait simplifies storage and handling compared to highly reactive fluorinated compounds.

Density & Structure: Boasts a density of 2.2–3.1 g/cm³ and a molar mass of 150–350 g/mol, with a crystalline lattice that promotes efficient ion dissociation. The fluorinated anion’s electron-withdrawing nature enhances ionic conductivity in solution.

Ionic Conductivity: Delivers ionic conductivities of 10–25 mS/cm in 1 M organic solvent solutions, making it suitable for applications requiring rapid ion mobility, such as batteries and supercapacitors.

Key Applications

This fluorinated salt finds utility in diverse fields requiring high performance and reliability:

Energy Storage Systems: Serves as a critical electrolyte component in advanced batteries and supercapacitors. Its high ionic conductivity and thermal stability enable operation in extreme temperatures (-40 to 150°C), making it ideal for automotive, aerospace, and grid storage applications. In laboratory tests, it enhances battery cycle life by 25–40% compared to conventional electrolytes, suppressing dendrite formation on electrodes.

Industrial Catalysis: Acts as a Lewis acid catalyst in organic synthesis, facilitating reactions such as fluorination, alkylation, and cross-coupling. Its fluorinated anion promotes selective activation of substrates, achieving yields of 85–95% in the production of pharmaceutical intermediates and agrochemicals. It outperforms non-fluorinated catalysts in sterically hindered reactions, reducing side product formation.

Advanced Materials Synthesis: Doped into polymers and ceramics, it enhances ionic conductivity in solid-state electrolytes, enabling their use in next-generation solid-state batteries. It also functions as a flux in glass manufacturing, lowering melting points and improving optical properties in infrared-transparent materials.

Analytical Chemistry: Used as an additive in ion chromatography and mass spectrometry to improve detection sensitivity and peak resolution. Its unique ionic properties minimize interference with analytes, making it valuable for quantifying trace metals and organic compounds in complex samples.

Specialty Industrial Processes: Employed in metal plating baths to improve coating uniformity and adhesion, particularly for noble metals like gold and palladium. It also aids in the extraction of rare earth elements, enhancing separation efficiency in hydrometallurgical processes.

Advantages & Limitations

This fluorinated salt offers distinct benefits alongside practical considerations:

Performance in Extreme Conditions: Thrives in high-temperature, corrosive, or radiation-exposed environments where traditional salts degrade, making it indispensable for harsh-industry applications.

Versatility: Compatible with both aqueous and organic systems, enabling use in diverse processes from battery manufacturing to pharmaceutical synthesis.

Efficiency: Enhances reaction rates and product purity in catalysis, while boosting energy density and cycle life in energy storage systems.

Limitations: Higher production costs compared to non-fluorinated salts due to complex synthesis processes. Its fluorinated nature requires adherence to strict disposal regulations, and its moderate hygroscopicity necessitates controlled storage conditions in moisture-sensitive applications.

Synthesis & Quality Control

Produced through controlled acid-base reactions and purification steps:

Neutralization: A fluorinated acid reacts with a metal hydroxide or carbonate in aqueous or organic solvent, forming the salt and byproducts like water or carbon dioxide.

Purification: Recrystallization from anhydrous solvents removes impurities, achieving purity levels of 99.0–99.9% for industrial and research grades.

Quality control measures include:

Ion chromatography to verify anion purity and detect residual contaminants.

Inductively coupled plasma spectroscopy (ICP) to ensure trace metal levels are below 1 ppm for high-purity grades.

Thermal gravimetric analysis (TGA) to confirm thermal stability above 300°C.

Safety & Handling

Proper handling ensures safe use of this fluorinated salt:

Toxicity: Low acute toxicity, but inhalation of dust or contact with moisture may release trace amounts of hydrofluoric acid (HF), causing irritation. Chronic exposure to fluoride ions requires adherence to occupational limits.

Handling: Use in well-ventilated fume hoods with moisture control. Wear chemical-resistant gloves (nitrile or PTFE), safety goggles, and a dust respirator.

Storage: Keep in airtight, moisture-proof containers in a cool, dry area, separated from strong acids and reducing agents.

Disposal: Classified as hazardous waste due to fluoride content; dispose of in accordance with local regulations. Neutralize spills with calcium carbonate to form insoluble fluorides.

Refer to the product’s Safety Data Sheet (SDS) for detailed safety protocols.

Packaging & Availability

Available in forms tailored to specific needs:

Industrial Grade: 25–50 kg drums for large-scale manufacturing processes.

Research Grade: 100 g–5 kg containers with 99.9% purity for laboratory use.

Solution Form: Pre-dissolved in solvents like acetonitrile or water (0.5–2 M) in 1–20 L containers for immediate application.

Global production is concentrated in regions with advanced chemical manufacturing capabilities, with supply chains supporting both small-scale research and large industrial operations.

For technical specifications, custom formulations, or sourcing assistance, contact our team specializing in advanced fluorinated materials and industrial chemicals.

Health & Safety Information

 Signal Word: Warning 

Hazard Statements: H302-H315-H319-H335 

Hazard Codes: Xn 

Precautionary Statements: P261-P305 + P351 + P338 

Flash Point: Not applicable 

Risk Codes: 22-36/37/38 

Safety Statements: 26 

RTECS Number: N/A 

Transport Information: NONH for all modes of transport

 WGK Germany: 3 

GHS Pictogram: Image

Chemical Identifiers

 Linear Formula: LiCl • KCl 

Pubchem CID: 16213218 

MDL Number: MFCD00144623 

EC No.: N/A 

IUPAC Name: lithium; potassium; dichloride 

Beilstein/Reaxys No.: N/A 

SMILES: [K+].[Li+].[Cl-].[Cl-] 

InchI Identifier: InChI=1S/2ClH.K.Li/h2*1H;;/q;;2*+1/p-2 

InchI Key: HCQWRNRRURULEY-UHFFFAOYSA-L

Packing of Standard Packing: 

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 735 gallon liquid totes Special package is available on request.