Palladium

Palladium is similarly used as other noble metals in electrical contact and as a coating in process equipment. Palladium has been extensively researched as an alloying element to titanium as well as other metals to increase corrosion resistance to acids such as HCl, HNO3, and FeCl3 salts. Palladium is generally resistant to single acids and alkalis, and to most salt solutions. The susceptibilities of Pd are to the following compounds:

• Nitric acid, hydroiodic acid
• Hot sulfuric acid
• FeCl3 and hypochlorite solutions
• Chlorine and bromine
• Iodine (very slightly)
• Aqua regia
• Potassium cyanide