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Tantalum - high precision density-standard cube 1cm3 -
10.0 x 10.0 x10.0mm - purity 99.95%
Made in Germany - The most accurate density standard cubes available!
Tantalum- precision density-standard cube 1cm3 NEW!Using finest materials, each density cube was lapped to 10x10x10mmby a mechanical engineering company with an accuracy of0.01 millimeter.Eachoneseparately 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 36 elements are available in a complete set in a wooden case (available separately).
Tantalum was discovered in 1802 by A.G. Ekeberg in Uppsala, Sweden.Tantalum is a shiny, silvery colored metal which is heavy, dense, malleable and ductile when pure. It is found in small quantities in minerals (generally in conjunction with niobium), and is isolated by conversion to the oxide and then the fluoro-complex, K2TaF7, from which the pure metal is obtained by electrolysis. Tantalum is extremely corrosion resistant due to the formation of an oxide film, and is also resistant to acid attack (with the exception of HF). It will react with fused alkalis and a variety of non-metals at elevated temperatures.Tantalum can be used as a replacement for platinum for laboratory apparatus which has to have good corrosion resistance, and the metal is also used within the chemical industry for similar reasons. The fluids in the human body do not react with the metal and, hence, it is used for surgical implants without rejection. Other applications include the use of tantalum caroffere in cemented carofferes which are used as cutting tools. The pure metal is used in the electronics industry in the manufacture of various types of electronic equipment (e.g. rectifiers, capacitors, lamp filaments, etc.). Tantalum is also used in vacuum systems as it has a high absorption rate for residual gases. It is also used as an alloying element with, for example, nickel and molybdenum, to produce alloys which have good corrosion resistance, strength and ductility.Source: ©Goodfellow.com
scope of deliveryYou get one Tantalum - precision density-standard cube 1cm3
shipping fees
We calculate following shipping fees:
Table of shipping fees:
USA, Canada$26.90Asia, South America, Africa$31.50Australia, New Zealand, Oceania$37.00
Courier Express Services:
Items up to 1kg (2.2lbs) by Courier Express (Very fast! 1 - 3 days lead time )USA, Canada$125.00Australia, New Zealand, Asia and other countries outside EU$152.30
Items over 1kg up to 2kg (4.4lbs) by Courier Express (Very fast! 1 - 3 days lead time )USA, Canada$133.40Australia, New Zealand, Asia and other countries outside EU$169.70
I am happy to combine shipping to save you money! Please contact me!
