Platinum Group Metals (PGM) Refining: Extraction & Analysis The Platinum Group Metals (PGM) represent a family of six transition metals clustered together in the periodic table: platinum (Pt), palladium (Pd), rhodium (Rh), ruthenium (Ru), iridium (Ir), and osmium (Os). These elements are renowned not only for their rarity but for their extraordinary physical and chemical

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