| Formula / Notation | W |
|---|---|
| CAS Number | 7440-33-7 |
| Molecular Weight | 183.84 |
| Melting Point | 3422.0 |
| Boiling Point | 5555.0 |
| Density | 19.25 |
| Solubility | Insoluble in water |
| Appearance | Hard, lustrous, steel-grey to tin-white metal |
| Also Known As | W, wolfram, tungsten metal |
| Category | Elements |
What is Tungsten?
Tungsten is a hard, grey transition metal, atomic number 74. Has the highest melting point of all metals (3422 C) and the highest tensile strength at temperatures above 1650 C. Used in incandescent light bulb filaments. The symbol W comes from its German name wolfram.
Formula & Notation
IUPAC Name: Tungsten
Other Names / Synonyms: W, wolfram, tungsten metal
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 3422.0 |
| Boiling Point | 5555.0 |
| Density | 19.25 |
| Molecular Weight | 183.84 |
| Solubility | Insoluble in water |
| Appearance | Hard, lustrous, steel-grey to tin-white metal |
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
Tungsten is a hard, grey transition metal, atomic number 74. Has the highest melting point of all metals (3422 C) and the highest tensile strength at temperatures above 1650 C. Used in incandescent light bulb filaments. The symbol W comes from its German name wolfram.
Incandescent light bulb filaments (high melting point). Tungsten carbide (WC) cutting tools, drill bits, mining equipment. TIG welding electrodes. X-ray tube targets and radiation shielding. Ballistic penetrators. High-temperature furnace elements. Catalysts.
Tungsten metal: low acute toxicity. Tungsten dust: respiratory irritant. Tungsten carbide-cobalt (hard metal): causes hard metal lung disease. Tungsten hexafluoride (WF6): highly toxic corrosive gas used in semiconductor manufacturing. Handle powder with respiratory protection.
The formula or notation for Tungsten is: W