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Rh
Rhodium
Atomic no.:
45
Atom. weight: 102.9055
Density: 12.41
Class:
platinum metal
Melting point: 1966°C
Boiling point: 3730°C
Colour: silvery shiny
   
Discoverer: William Hyde Wollaston
Place: London, England
Year: 1803

Rhodium was discovered in 1803 by W.H. Woolaston in London. One of the rarest metals on earth (abundance of 2 x 10-4 ppm), rhodium does not appear naturally, tending to be found with other platinum group metals. It is a hard, lustrous, silvery colored metal which is stable in air. Rhodium is inert to all acids but is attacked by fused alkalis. The metal has high thermal and electrical conductivities and is alloyed with platinum to form the positive wire of a Pt/Rh - Pt thermocouple. Other applications of the material include its use as a plating material (to provide a hard and bright surface which is resistant to oxidation), as a catalyst and also as an alloying element, where it improves the hardness of the resulting alloy.

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 RHODIUM precision density-standard cube 1cm3 - 12.4g  Art. Nr. 004112  
RHODIUM precision density-standard cube 1cm3 - 12.4g
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RHODIUM -  precision density-standard cube 1cm3 - 12.4 grams incl. certificate of analysis - NEW!

Pre-Order ! Production time ~ 8 weeks

Please note that this item is excluded from reductions or special offers. 

Using finest materials, each density cube was lapped to 10x10x10mm (tolerance + 0.01mm) by a famous company especialized in noble metals. Each one separately ground and polished it represents the theoretical density of the respective element by its weight. The weight is not affected by the laser inscription. Information such as element symbol, name and density is durable burned at the surface. Altogether 25 elements are planned in a complete set in a wooden case.

Amount: 1 St. / 1 pc..
Purity : 99,95%
Packing: PE - bag
2,136.00
- tax free

Availability: 7 in stock

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