Rh
metal· Rh
Rhodium (Rh) is a precious transition metal from the platinum group, valued for its exceptional corrosion resistance, high melting point, and catalytic activity even at elevated temperatures. It is widely used in automotive catalytic converters, chemical processing catalysts, and plating applications where resistance to oxidation and chemical attack is critical. Engineers select rhodium for extreme-environment applications where alternatives would degrade, though its high cost and scarcity make it a selective choice reserved for high-performance or irreplaceable functions.
automotive catalytic converterschemical process catalystsprecious metal platinghigh-temperature corrosion resistanceglass fiber production spinneretslaboratory and research equipment
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 36,760.8 | ksi | — | ||
| ↳ | 37,825.8 | ksi | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.2985 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | ksi | — | ||
Poisson's Ratio(ν)2 entries | 0.2600 | - | — | ||
| ↳ | 0.2600 | - | — | ||
Shear Modulus(G)2 entries | 21,008.3 | ksi | — | ||
| ↳ | 22,512.8 | ksi | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.4384 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | 2.110 | µV/K | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | 0.01076 | eV/atom | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Export Control
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.