Lithium Tetrachloromanganate(II) SolutionCAS #: 57384-24-4

Synonyms 

Manganese(II) chloride bis(lithium chloride) complex solution, Lithium chloromanganate(II), Lithium manganese chloride, Dilithium chloromanganate(II)

Compound Formula: Li2MnCl4 

Molecular Weight: 210.63 

Appearance: Yellow liquid 

Melting Point: N/A 

Boiling Point: N/A 

Density: 0.956 g/mL (25 °C, 0.5 M in THF) 

Solubility in H2O: N/A 

Exact Mass: 210.843 g/mol 

Monoisotopic Mass: 208.845 g/mol

Product Introduction: Sodium Tetrafluoroborate (NaBF₄, CAS #: 57384-24-4)

Sodium tetrafluoroborate, with the chemical formula NaBF₄ and CAS number 57384-24-4, is a versatile inorganic salt widely utilized in electrochemical systems, industrial processes, and chemical synthesis. This white crystalline solid is valued for its high solubility in polar solvents, good ionic conductivity, and chemical stability, making it a reliable choice in applications ranging from sodium-ion batteries to metal finishing. Its tetrahedral BF₄⁻ anion structure contributes to its stability, ensuring consistent performance in both aqueous and non-aqueous environments.

Chemical & Physical Properties

NaBF₄ exhibits key properties that underpin its industrial and electrochemical utility:

Solubility: Highly soluble in water (approximately 55 g/100 mL at 20°C) and polar organic solvents such as acetonitrile, methanol, and ethylene carbonate, enabling flexible formulation in diverse applications.

Ionic Conductivity: Delivers moderate ionic conductivity in solution (typically 3–6 mS/cm in optimized aqueous or organic mixtures), facilitating efficient ion transport in electrochemical systems.

Melting Point: Approximately 384°C, with decomposition occurring at higher temperatures (above 500°C), providing thermal stability for high-temperature industrial processes.

Electrochemical Window: Offers a stable electrochemical window (up to 4.0 V vs. Na⁺/Na) in non-aqueous solvents, compatible with common sodium-ion battery cathodes like Prussian blue analogs and sodium manganese oxides.

Hygroscopicity: Slightly hygroscopic, absorbing moisture from the air at high humidity, which can lead to clumping but minimal hydrolysis compared to other fluoroborate salts.

Key Applications

Sodium tetrafluoroborate (CAS 57384-24-4) finds use across multiple industries, leveraging its unique properties:

Sodium-Ion Batteries (SIBs): Serves as an electrolyte salt in SIBs, particularly in research and development of low-cost energy storage systems. Its solubility in organic solvents and compatibility with electrode materials make it a baseline for formulating electrolytes in sodium-based batteries.

Electroplating and Metal Finishing: Used as an additive in electroplating baths for nickel, copper, and tin coatings, improving deposit uniformity and reducing surface defects. It enhances conductivity and controls pH in plating solutions.

Dyeing and Textile Industry: Acts as a leveling agent in textile dyeing, ensuring uniform color absorption by fibers and preventing uneven staining.

Chemical Synthesis: Employed as a fluorinating agent and catalyst in organic synthesis, facilitating reactions such as alkylation and polymerization. It also serves as a source of BF₄⁻ ions in the preparation of ionic liquids.

Laboratory Research: A standard reagent in electrochemical studies, particularly for evaluating sodium-based electrode materials and electrolyte formulations.

Advantages & Limitations

NaBF₄ offers specific benefits compared to other salts, with some considerations:

Cost-Effectiveness: More affordable than specialty fluorinated salts like NaTFSI, making it suitable for large-scale industrial applications.

Stability: Exhibits good chemical stability in both aqueous and organic media, resisting hydrolysis under moderate conditions and reducing the formation of corrosive byproducts.

Versatility: Compatible with a range of processes, from electroplating to battery electrolytes, due to its solubility and ionic properties.

Limitations: Lower ionic conductivity than advanced sodium salts (e.g., NaFSI) in non-aqueous electrolytes, restricting its use in high-performance sodium-ion batteries. It also has a narrower electrochemical window compared to NaTFSI.

Synthesis & Quality Control

NaBF₄ is synthesized through straightforward chemical reactions:

Neutralization: Sodium hydroxide (NaOH) or sodium carbonate (Na₂CO₃) reacts with tetrafluoroboric acid (HBF₄) in aqueous solution, forming NaBF₄ and water as a byproduct.

Purification: The solution is evaporated, and the resulting solid is recrystallized from water or methanol to remove impurities (e.g., chloride, sulfate), ensuring purity levels of 99% or higher.

Quality control includes titration for assay, ion chromatography to detect anionic impurities, and Karl Fischer titration to measure moisture content (typically below 0.5%).

Safety & Handling

Proper handling of NaBF₄ is essential to ensure safety and performance:

Moisture Management: Store in sealed containers in a dry area to prevent clumping. Avoid exposure to high humidity to maintain flowability.

Toxicity: May cause skin, eye, and respiratory irritation. Inhalation of dust or ingestion can lead to fluoride toxicity. Wear chemical-resistant gloves, goggles, and a respirator in poorly ventilated environments.

Reactivity: Avoid contact with strong acids (which release HF), strong bases, and reducing agents. It is non-flammable but can act as an oxidizer in extreme conditions.

Disposal: Dispose of waste in accordance with local regulations for fluoride-containing compounds, ensuring compliance with environmental guidelines.

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

Packaging & Availability

NaBF₄ is available in various forms to suit application needs:

Crystalline Powder: Packaged in moisture-resistant bags (1kg–25kg) or drums (50kg–500kg) with desiccants to minimize moisture absorption.

Aqueous Solutions: Pre-dissolved solutions (10–30% w/w) are available for immediate use in electroplating and industrial processes, packaged in 20L–200L containers.

Bulk quantities and custom purities (e.g., 99.9% for research) can be requested. Our product meets industrial standards for consistency and performance across applications.

For technical specifications, pricing, or sample requests, contact our sales team, specializing in inorganic salts for industrial and electrochemical use.

Health & Safety Information

 Signal Word: Danger 

Hazard Statements: H225-H302-H315-H319-H335-H351 

Hazard Codes: F, Xi, Xn 

Precautionary Statements: P210-P280-P301 + P312 + P330-P305 + P351 + P338-P370 + P378-P403 + P235 

Flash Point: -17 °C 

Risk Codes: N/A 

Safety Statements: N/A 

Transport Information: UN 2056 3 / PGII 

WGK Germany: 3 

GHS Pictogram: Image,Image,Image

Chemical Identifiers

 Linear Formula: Li2MnCl4 

Pubchem CID: 11805976 

MDL Number: MFCD00192059 

EC No.: N/A 

IUPAC Name: dilithium; tetrachloromanganese(2-) 

SMILES: [Li+].[Li+].Cl[Mn-2](Cl)(Cl)Cl 

InchI Identifier: InChI=1S/4ClH.2Li.Mn/h4*1H;;;/q;;;;2*+1;+2/p-4 

InchI Key: VJOUQNFWQPCDPE-UHFFFAOYSA-J

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