| Formula / Notation | Li |
|---|---|
| CAS Number | 7439-93-2 |
| Molecular Weight | 6.94 |
| Melting Point | 180.5 |
| Boiling Point | 1342.0 |
| Density | 0.534 |
| Solubility | Insoluble in water (reacts) |
| Appearance | Soft silvery-white metal, tarnishes to grey |
| Also Known As | Li, lithium metal |
| Category | Elements |
What is Lithium?
Lithium is the lightest metal and least dense solid element, atomic number 3. A soft, silvery-white alkali metal that reacts vigorously with water and tarnishes in air.
Formula & Notation
IUPAC Name: Lithium
Other Names / Synonyms: Li, lithium metal
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 180.5 |
| Boiling Point | 1342.0 |
| Density | 0.534 |
| Molecular Weight | 6.94 |
| Solubility | Insoluble in water (reacts) |
| Appearance | Soft silvery-white metal, tarnishes to grey |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Lithium is the lightest metal and least dense solid element, atomic number 3. A soft, silvery-white alkali metal that reacts vigorously with water and tarnishes in air.
Lithium-ion batteries (EVs, phones, laptops). Psychiatric medication (lithium carbonate for bipolar disorder). Lubricating greases. Aerospace alloys (Li-Al). Ceramics and glass. Air purification. Nuclear fusion fuel (Li-6).
Reacts vigorously with water producing H2 fire hazard. Store under mineral oil. Skin/eye irritant. Lithium fires: use dry sand, never water. Battery thermal runaway hazard.
The formula or notation for Lithium is: Li