|Origin of Name
||From the Greek word Pallas, the goddess of wisdom
|Date and Place of Discovery
||In 1803 in London, England
||William H. Wollaston
- It is the least dense and has the lowest melting point of the platinum metals.
- It is chemically attacked by sulfuric, nitric and hydrochloric acid.
- It does not react with oxygen, which means it does not tarnish in air. It will tarnish
slightly in moist air that contains sulfur.
- When it absorbs large amounts of hydrogen, it will swell up like a sponge full of water.
- Watch making
- Aircraft spark plugs
- Surgical instruments
- Electrical contacts
- Once prescribed as a treatment for tuberculosis until more effective drugs were discovered.