Lithium Chloride (CAS 7447-41-8) is a highly hygroscopic inorganic salt available in Technical Grade as white beads or powder, one of the most soluble salts known in water and polar organic solvents, and is used in battery electrolytes, aluminum brazing fluxes and industrial dehumidification. This Technical Grade material is critical for the production of lithium metal via electrolysis. It also serves as a high-performance desiccant due to its ability to absorb large quantities of atmospheric moisture. In specialized industrial sectors, it is used as a brazing flux for aluminum and as an electrolyte component. Its stability and high purity ensure consistent performance in energy storage technologies.
Typical Properties
| Molecular formula | ClLi |
|---|---|
| Molecular weight | 42.39 g/mol |
| Appearance | White powder |
| Form | beads |
| Color | White to gray |
| Odor | Odorless |
| Melting point | 613 °C |
| Boiling point | 1360 °C |
| Density | 2.07 g/cm³ |
| Water solubility | 832 g/L (20 °C) |
| Flash point | -4 °F |
| pH | 5.5-7.5 (25°C, 50mg/mL in H2O) |
| GHS signal word | Danger · Irritant / harmful, Health hazard |
| HS code | 28273980 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Lithium Chloride
Applications
- Humidity Control: Used in industrial air conditioning systems as a liquid desiccant for dehumidification.
- Metallurgy: Acts as a flux for welding and brazing aluminum and magnesium alloys in aviation.
- Battery Electrolytes: A precursor and component for electrolytes in specialized lithium-based batteries.
Safety & Risks
Classified as Acute Toxicity (Oral) Category 4 and Skin Irritation Category 2. Use PPE including lab coats, gloves, and safety goggles to prevent mucosal irritation.
Packaging
25 kg plastic drums or hermetically sealed moisture-proof bags.