moleculefinder

Zirconium

Zr91.22 g/mol Calculated

Also called Zircat and Zr.

A metal so transparent to neutrons that it clads the fuel rods in nuclear reactors, and whose oxide fakes diamond convincingly. Element 40.

Sources and notes
  • The introductionfrom sourceMoleculeFinder curated
  • Other namesfrom sourcePubChem / Wikidata
  • Formula and weightcomputedPubChem
  • 2D drawingcomputedPubChem structure, drawn by RDKit

Where you encounter it

A pure element or an engineered material, rather than an ingredient in a product.

Sources and notes
  • The line abovefrom sourceMoleculeFinder curatedFrom the group the molecule belongs to.

Properties and sources

Calculated by PubChem

Molecular formula
Zr
Molecular weight
91.22 g/mol

Reported Hazard label (GHS), ECHA, EU CLP Regulation, Safe Work Australia via PubChem

Danger Flammable pictogram (GHS02); hazard statements H250, H251, H260

Groups it belongs to

Category
Element & material
Family
Chemical elements
Hazard classes
Flammable, GHS Danger
Size
Under 100 g/mol
SMILES[Zr]

PubChem CID 23995 · Wikidata Q1038 · InChIKey QCWXUUIWCKQGHC-UHFFFAOYSA-N · Data refreshed

How MoleculeFinder sources and labels its data

Questions
What is Zirconium?
A metal so transparent to neutrons that it clads the fuel rods in nuclear reactors, and whose oxide fakes diamond convincingly. Element 40.
How toxic is Zirconium?
Its GHS hazard label carries the signal word Danger and the hazard pictogram Flammable. from source
What kind of molecule is Zirconium?
Zirconium has the formula Zr and a molecular weight of 91.22 g/mol. MoleculeFinder files it under chemical elements, in the element & material group. from sourcefrom sourcefrom sourcefrom source
Sources and notes
  • Calculated valuescomputedPubChemComputed from the structure, so no laboratory conditions apply; complexity is PubChem's own structural score.
  • Hazard labelfrom sourceECHA, EU CLP Regulation, Safe Work Australia via PubChemThe label combines these classifications.
  • ECHAfrom sourceAttributionSource: European Chemicals Agency, echa.europa.eu.
  • EU CLP Regulationfrom sourceAttributionSource: EUR-Lex, Regulation (EC) No 1272/2008, © European Union.
  • Safe Work Australiafrom sourceAttributionSource: Safe Work Australia, Hazardous Chemical Information System, © Commonwealth of Australia, CC BY 4.0.
  • Data refreshedfrom sourceMoleculeFinder2026-11-09