18 Facts About Rhodium

Rhodium is a chemical element with the symbol Rh and atomic number 45.

Rhodium is found in platinum or nickel ores with the other members of the platinum group metals.

Rhodium is sometimes used to cure silicones: a two-part silicone in which one part containing a silicon hydride and the other containing a vinyl-terminated silicone are mixed; one of these liquids contains a rhodium complex.

Rhodium detectors are used in nuclear reactors to measure the neutron flux level.

Rhodium was discovered in 1803 by William Hyde Wollaston, soon after he discovered palladium.

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Rhodium used crude platinum ore presumably obtained from South America.

Rhodium's procedure dissolved the ore in aqua regia and neutralized the acid with sodium hydroxide .

Rhodium then precipitated the platinum as ammonium chloroplatinate by adding ammonium chloride .

Rhodium is a hard, silvery, durable metal that has a high reflectance.

Rhodium has both a higher melting point and lower density than platinum.

Rhodium belongs to group 9 of the periodic table, but the configuration of electrons in the outermost shells is atypical for the group.

Rhodium is one of the rarest elements in the Earth's crust, comprising an estimated 0.

Rhodium has been measured in some potatoes with concentrations between 0.

Rhodium is a fission product of uranium-235: each kilogram of fission product contains a significant amount of the lighter platinum group metals.

Rhodium is preferable to the other platinum metals in the reduction of nitrogen oxides to nitrogen and oxygen:.

Rhodium catalysts are used in a number of industrial processes, notably in catalytic carbonylation of methanol to produce acetic acid by the Monsanto process.

Rhodium has been used for honors or to signify elite status, when more commonly used metals such as silver, gold or platinum were deemed insufficient.

Rhodium is used as an alloying agent for hardening and improving the corrosion resistance of platinum and palladium.