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Iridium II acetate Formula

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Article about iridium iii acetate formula

Iridium iii acetate can be used as a catalyst or catalyst component in homogeneously or heterogeneously catalyzed reactions. It is especially useful in carbonylation reactions, where it can increase the reaction rate by up to a factor of 100 compared with unmodified iridium hydroxide. In addition, iridium iii cations have excellent coordination properties and can thus be used to stabilize other reactive compounds. In this respect, iridium iii can be used to form complexes with ammonium and other metals. It can also be used to protect organic molecules from oxidation, as for example by formation of an iridium(III)-oxalate-acetate complex.

Preferably, the iridium containing precipitate is separated and washed. This is particularly important, since halide ions can have adverse effects on the performance of the iridium acetate. The washing step can be conducted with any liquid which is inert to the iridium containing precipitate and does not react with it, e.g. with water, acetic acid or hydrochloric acid. The separation and washing steps may be carried out in succession or simultaneously.

The iridium containing precipitate is then reprecipitated with the alkaline compound. This is possible with a wide range of solvents, preferably in admixture with a protic solvent. It is preferred that the reprecipitation is carried out immediately after the separation and washing of the iridium containing precipitate. This prevents the iridium containing precipitate from being exposed to conditions which cause it to age, i.e. to change its physical and chemical properties.