Specifications: 

Rhodium is a silver-white metal, extremely hard, wear-resistant, and possesses considerable ductility.

Rhodium is primarily used in the production of alloys, such as platinum-rhodium alloys; it is also used in the manufacture of hydrogenation catalysts, thermocouples, and other bright, hard coatings—for example, plated on silverware or camera parts, as well as on searchlights and mirrors. It is also used for polishing gemstones and in electrical contact components. As a rare and precious metal, it has a wide range of industrial applications.

At moderate temperatures, rhodium resists most common acids (including aqua regia). Between 200°C and 600°C, it reacts chemically with hot concentrated sulfuric acid, hot hydrobromic acid, sodium hypochlorite, and free halogens. It does not react with many molten metals such as gold, silver, sodium, and potassium, nor with molten alkalis.

Application:

Suitable for gold ingots produced from various gold raw materials. (Note: The original text lists this application, which may be an error, as rhodium metal is not typically used for producing gold ingots.)