Gold Shows New Chemical Properties: Global Scientists Discover Unusual Compound Under Extreme Conditions

Noble Metal with Unusual Reaction Under Extreme Pressure and Temperature

Gold, traditionally a symbol of wealth and stability, surprised the global scientific community by exhibiting new chemical properties. In an international team led by the SLAC National Accelerator Laboratory (USA) and European collaborators, a solid compound of gold and hydrogen – called gold hydride – was synthesized for the first time.

How Was Gold Hydride Created?

The experiment involved innovative diamond synthesis: hydrocarbon samples and gold foil were placed in a diamond anvil press and subjected to pressure exceeding that in the Earth's mantle, and temperatures over 2,000°C. The goal was to track the transformation of hydrocarbons into diamonds.

An unexpected result – part of the hydrogen penetrates the gold and creates a stable compound, contrary to previous ideas about gold's inertness.

What Makes This Compound Unique?

Gold is usually considered the "least interested" metal, incapable of participating in important chemical reactions. But under extreme pressure and temperature, gold's atomic lattice allows hydrogen to move freely, increasing the compound's electrical conductivity.

The effect is temporary – after cooling, the compound breaks back down into gold and hydrogen. Scientists point out that under even more extreme conditions, the lattice might absorb more hydrogen, opening new theories about metal and gas interactions.

Scientific Significance and Future Applications

The discovery, published in Angewandte Chemie, changes our knowledge of noble metal chemistry and creates a basis for exploring other metals under similar extreme conditions. The achievement could lead to the development of revolutionary new materials for energy and space exploration.

Conclusion

Gold hydride is an example that even the most noble and stable metals can surprise science when placed at the boundary of the known. The discovery shows that the world of materials and chemistry is full of unexpected possibilities – and Bulgaria can be part of this scientific dialogue by supporting research and the talent of its scientists.