PLATINUM - precision density-standard cube 1cm3 - 21.45 grams
incl. certificate of analysis - NEW!
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.
Here you find pictures and the complete description of the set!
Platinum was known to native South Americans before the arrival of Columbus and was introduced into Europe around 1750.
Platinum is a member of the platinum group metals and is lustrous, malleable and ductile; it has an abundance of approximately 0.001 ppm in the earth's crust. Of the group of six metals (Pt, Pd, Os, Ir, Rh and Ru), it is the most important. It is unaffected by oxygen and water and is only soluble in aqua regia or fused alkalis.
Applications for platinum are many and varied; for example, it is used to make weights and measures standards, it is used in the electronics industry for electrical contacts which might be subject to high temperatures, and it is used to manufacture electrodes which might be subject to chemical attack. A current and important use of platinum is in car exhaust catalysts, in which a ceramic honeycomb is coated with platinum. Platinum is also used to manufacture jewellery and, along with gold and silver, has its own hallmark.
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