Zinc
| Formula / Notation | Zn |
|---|---|
| CAS Number | 7440-66-6 |
| Molecular Weight | 65.38 g/mol |
| Melting Point | 419.5°C (693.5 K) |
| Boiling Point | 907°C (1180 K) |
| Density | 7.13 g/cm³ |
| Appearance | Bluish-white lustrous metal; brittle at room temperature; becomes malleable at 100°C |
| Also Known As | Zinc metal, Zincum |
What is Zinc?
A bluish-white metallic element with atomic number 30 and symbol Zn. It is an essential trace element for humans. Zinc is used to galvanize steel (protecting it from corrosion), in brass alloys, batteries (zinc-carbon and alkaline), and as a die-casting metal. Standard electrode potential: E° = -0.76 V.
Formula & Notation
Other Names / Synonyms: Zinc metal, Zincum
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 419.5°C (693.5 K) |
| Boiling Point | 907°C (1180 K) |
| Density | 7.13 g/cm³ |
| Molecular Weight | 65.38 g/mol |
| Appearance | Bluish-white lustrous metal; brittle at room temperature; becomes malleable at 100°C |
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
A bluish-white metallic element with atomic number 30 and symbol Zn. It is an essential trace element for humans. Zinc is used to galvanize steel (protecting it from corrosion), in brass alloys, batteries (zinc-carbon and alkaline), and as a die-casting metal. Standard electrode potential: E° = -0.76 V.
Galvanizing steel and iron to prevent corrosion (largest use). Die casting alloys. Zinc-carbon and alkaline batteries. Brass and bronze alloys. Zinc oxide used in sunscreens (UV blocker), rubber vulcanization, ceramics, and white paint. Dietary supplement and essential trace element for humans. Zinc…
Zinc dust and powder are flammable and form explosive mixtures with air. Zinc fume fever occurs from inhaling zinc oxide fumes during welding — symptoms include chills, fever, and muscle aches. Chronic exposure can cause copper deficiency. Zinc compounds vary in toxicity; ZnCl₂ is corrosive. Store a…
The formula or notation for Zinc is: Zn