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ZnO

Zinc oxide

IUPAC : Zinc oxide
OxideMineralIndustrialPharmaceuticalEveryday

Wide-bandgap semiconductor used in pharmacy (healing creams), cosmetics (sunscreens) and electronics (varistors, UV LEDs).

3D ball-and-stick representation of Zinc oxide (formula ZnO). Constituent atoms: Zn, O.
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Physical properties

Molar mass81.38 g/mol
State at 20 °Csolid
Density5.606 g/cm³
Melting point2248.00 K (1975 °C)
Boiling point—
Solubility (H₂O)insoluble (0.0004 g/100 mL)
Refractive index2.004

Structure

Crystal systemHexagonal
3D render modeBall-and-stick

Uses and applications

  • Sunscreens (physical UV filter)
  • Ointments and healing creams (pharmacy)
  • Rubber vulcanisation (activator)
  • Varistors and gas sensors (electronics)
  • Paints and pigments (zinc white)

Safety (GHS)

GHS09 · Environmental hazard
H statements : H410

Non-toxic to humans. Very toxic to aquatic life.

Constituent elements

30Zn
Zinc
8O
Oxygen

References

PubChem CID14806
CAS1314-13-2
SMILES[Zn]=O
Sources : PubChem CID 14806 · CRC Handbook of Chemistry and Physics