Related terms:
osmium
rhodium
iridium
ruthenium
aqua regia
mined
hydrochloric
catalysts
insoluble
ore
nickel
osmium tetroxide
tennant
palladium
catalysis
organometallic
residue
precious metal
other platinum group metals
acetate
abundant
complexes
oxidation state
volatile
naturally occurring
melting point
deposits
metals
hardness
melting
Wikipedia sources:
Iridium
Osmium
Palladium
Platinum group
Platinum
Ruthenium
Context for words:
platinum
group
metals
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