Plutonium exists in the environment as a result of the nuclear fuel and weapons cycle and nuclear weapons
testing. Carbonate and hydroxide are ubiquitous in the environment while chloride is a principal component in brines such as those native to the Waste Isolation Pilot Plant
(WIPP) site. Thus, the characterization of plutonium complexes formed with
is important for predicting the behavior of plutonium in the environment. Plutonium(VI) is known to form under oxidizing conditions, and we are investigating the structure, solubility and speciation of plutonium(VI) carbonates and hydroxides.