Chlorides

Praseodymium III chloride: Praseodymium is used in high-intensity permanent magnets, which are essential in electric motors and generators used in hybrid cars and wind turbines. The metal is used as an alloying agent with magnesium creating a high-strength metal for aircraft engines. Praseodymium is also used in the core of high-intensity carbon arc lights used by the film industry and in floodlighting.

Praseodymium III chloride: Praseodymium is used in nickel metal hydride (NiMH) rechargeable batteries for hybrid automobiles. The negative electrode (cathode) in NiMH batteries is a mixture of metal hydrides – typically a rare earth misch metal hydride containing praseodymium, neodymium, lanthanum and cerium.

Praseodymium III chloride salts are used to color glasses and enamels. Praseodymium is used to make specialized yellow glass goggles for glass blowers and welders. Flame lighter flints use misch metal (a rare earth alloy) containing praseodymium to produce sparks by friction.

Praseodymium III chloride is the inorganic compound with the formula PrCl3. It is a blue-green solid that rapidly absorbs water on exposure to moist air to form a light green heptahydrate. They are formed through various chlorination processes whereby at least one chlorine anion (Cl-) is covalently bonded to the relevant metal or cation

Praseodymium III chloride: Praseodymium is one of the lanthanide rare earth metals. It forms a flaky black oxide coating (Pr₆O₁₁) in air. Unlike many metal oxide layers, this one does not protect the metal from further oxidation. The pale green sesquioxide, Pr₂O₃, is not stable in air. Praseodymium reacts with water to form praseodymium hydroxide plus hydrogen gas.