Platinum Sulfate

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platinum sulfate is a moderately water and acid soluble platinum source. It is suitable for use in a wide range of applications, including catalysis and electroplating. It is also a good choice for applications requiring high purity metals, such as for platinum electrodes.

Inventors have shown that sulfate ions can be effectively removed using an easy to implement aqueous solution containing a chloride-rich metal such as platinum. The method is simple and has a yield higher than 90%.

The sulfate is derived from a reaction between potassium tetraammineplatinum chloride (II) and ammonium acetate. The sulfate is a clear and colorless liquid, and the most interesting part of the process is separating it from the ammonia acetic acid.

A sulfate-selective electrode is an effective way to make Pt more responsive for electrochemical oxidation of ethanol. It is made by coating a commercial Pt electrode with a solid sulfate such as Aliquat-336 and trifluoroacetyl-p-butylbenzene in polyvinyl chloride matrix.

Generally speaking, sulfate-selective materials can be obtained by the use of a combination of anionic and non-ionic compounds which are either water soluble or compatible with sulfates. The most important of these is a metal salt, usually a sulfate compound. The best of these is a sulfate-selective fluoride such as sodium dodecyl sulfate (SDS). Other sulfates include phosphates, organic compounds, and hydroxyl compounds. Sulfates are also often used in the preparation of ion exchange membranes, as well as for their anti-fouling properties. They are particularly useful in the development of aqueous electrolytes, which require sulfate-soluble metals for their ion-exchange membranes to work.