Ru
metal· Ru
Ruthenium (Ru) is a hard, silvery-white transition metal belonging to the platinum group metals (PGMs), prized for its exceptional corrosion resistance, high melting point, and catalytic properties. It is used in electronics, chemical catalysis, and specialized alloys where extreme durability and chemical inertness are critical; engineers select ruthenium when platinum is prohibitively expensive or when specific catalytic or wear-resistant properties are needed, though its high cost and limited availability restrict it to high-value applications.
catalytic converters and chemical catalystselectrical contacts and microelectronicsplatinum alloys and jewelrycorrosion-resistant coatingswear-resistant hard coatingshigh-temperature oxidation barriers
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 307.5 | GPa | — | ||
| ↳ | 308.2 | GPa | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.03465 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | Pa | — | ||
Poisson's Ratio(ν)2 entries | 0.2407 | - | — | ||
| ↳ | 0.2500 | - | — | ||
Shear Modulus(G)2 entries | 192.8 | GPa | — | ||
| ↳ | 194.8 | GPa | — |
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) | 12.09 | kg/m³ | — |
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) | 0.2500 | 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) | 0.1110 | 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.