Key figures are connected to a named reference, institution, or established handbook.
Careful by design.
Clear by intention.
Osmium translates specialist materials science into useful, readable intelligence. This page explains how we gather facts, evaluate evidence, and keep every number accountable.
Useful context,
not just facts.
Element information can look definitive while hiding important conditions: purity, crystal structure, temperature, measurement method, or chemical form. We preserve those distinctions wherever they change the meaning of a claim.
Relative scales help readers understand why a property matters without overstating precision.
We separate established applications from promising research and from historical uses.
One number can have
several conditions.
Our overview uses standard reference values for naturally occurring osmium. Where sources report a range, we retain the range or state the convention used rather than implying false exactness.
| Measure | Published value | Reference convention |
|---|---|---|
| Atomic mass | 190.23 u | Standard atomic weight |
| Density | 22.59 g/cm³ | Near room temperature |
| Melting point | 3,033 °C | At standard pressure |
| Natural abundance | Approx. 0.0001% | Crustal abundance estimate |
Maintained like
a living reference.
Every page is checked for internal consistency when a core value changes. New application claims are reviewed for technical scope, and language is calibrated to distinguish commercial practice, laboratory research, and future potential.
Last editorial review: July 18, 2026. Values are reviewed annually, or sooner when a primary reference issues a material correction.
Start with the
original record.
We favor scientific organizations, curated datasets, and peer-reviewed literature over unsourced summaries. External references open in a new tab.
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