Gold Solution Formula

I'm sorry, but I need more information about the "gold solution formula" you are referring to.

There are many different gold compounds and solutions with varying formulas and properties. For instance, gold nanoparticles can be prepared in solution by reducing an aqueous tetrachloroaurate (III) solution with a reducing agent such as sodium borohydride or citrate. Another example is the use of potassium tetrachloroaurate (III) in the preparation of a gold chloride solution.

Without further clarification on which specific gold solution formula you are referring to, it is difficult for me to provide a detailed and accurate explanation of its properties and characteristics. Please provide more information so that I can assist you better.