Rhodium
Rh102.9055 g/mol Calculated
A rare platinum-group metal, used to plate white gold jewellery and, in car exhaust catalysts, to turn nitrogen oxides back into nitrogen. Element 45.
Sources and notes
- The introductionfrom sourceMoleculeFinder curated
- 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
- Rh
- Molecular weight
- 102.9055 g/mol
Reported Hazard label (GHS), ECHA via PubChem
Danger Flammable pictogram (GHS02); hazard statements H228
Groups it belongs to
- Category
- Element & material
- Family
- Chemical elements
- Hazard classes
- Flammable, GHS Danger
SMILES
[Rh]PubChem CID 23948 · Wikidata Q1087 · InChIKey MHOVAHRLVXNVSD-UHFFFAOYSA-N · Data refreshed
Questions
- What is Rhodium?
- A rare platinum-group metal, used to plate white gold jewellery and, in car exhaust catalysts, to turn nitrogen oxides back into nitrogen. Element 45.
- How toxic is Rhodium?
- Its GHS hazard label carries the signal word Danger and the hazard pictogram Flammable. from source
- What kind of molecule is Rhodium?
- Rhodium has the formula Rh and a molecular weight of 102.906 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 via PubChemThe label combines these classifications.
- ECHAfrom sourceAttributionSource: European Chemicals Agency, echa.europa.eu.
- Data refreshedfrom sourceMoleculeFinder2026-11-09