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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.
P 2569 (OTTO) Praseodymium chloride, 99.9% Cas 17272-46-7 - used for glass, crystal and capacitors.