Overview
Lithium carbonate is a critical industrial chemical compound with the formula Li₂CO₃. It serves as a primary source of lithium for various applications, particularly in the rapidly growing battery industry. The compound is produced through the reaction of lithium chloride with sodium carbonate or through the processing of lithium-containing ores. As a key material in the lithium value chain, its demand has surged with the global shift toward electric vehicles and renewable energy storage. The compound's alkaline nature and lithium content make it indispensable for multiple industrial processes beyond energy storage, including glass and ceramic manufacturing.
Physical and Chemical Properties
Lithium carbonate presents as a white, odorless powder with a density of 2.11 g/cm³. It exhibits limited solubility in water (1.3 g/100 mL at 20°C) and is insoluble in most organic solvents. The compound melts at 723°C, decomposing before reaching a boiling point. Chemically, it reacts with acids to form lithium salts and carbon dioxide. Its alkaline properties (pH ~11 in solution) require careful handling. The material is hygroscopic, gradually absorbing moisture from air, which can affect its handling properties and storage requirements.
Main Applications
The primary use of lithium carbonate is in lithium-ion battery production, where it serves as a precursor for cathode materials. Approximately 60% of global production feeds this sector. In ceramics and glass manufacturing, it acts as a flux to reduce melting temperatures and improve thermal expansion properties. The pharmaceutical industry utilizes lithium carbonate as a mood stabilizer in bipolar disorder treatment. Other applications include aluminum production (as a bath additive), continuous casting mold flux powders, and as a precursor for other lithium compounds. Emerging uses include carbon dioxide capture technologies and specialty greases.
Safety and Storage
Lithium carbonate requires careful handling due to its irritant properties. Appropriate PPE including gloves, goggles, and dust masks should be used when handling the powder. The compound is not flammable but may decompose at high temperatures, releasing lithium oxide and carbon dioxide. Storage should be in sealed containers in dry, well-ventilated areas, protected from moisture and acidic conditions. Bulk storage silos should have humidity control. Spills should be contained and cleaned with dry methods, avoiding water which can create dust. Proper labeling and MSDS documentation are essential for workplace safety compliance.
B2B Procurement Guide
When procuring lithium carbonate, buyers should specify required purity levels (typically 99% min for battery grade). Verify supplier certifications including ISO and battery material-specific qualifications. Packaging options range from 25kg bags to bulk supersacks or tanker trucks for large quantities. Consider transportation logistics carefully - some regions classify lithium compounds as hazardous materials. For spot purchases, monitor the lithium market closely as prices fluctuate with battery demand. Establish long-term contracts for stable supply when possible. Quality control should include testing for moisture content, particle size distribution, and impurity levels.
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