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Cobalt - lab grade ultra precision density-standard cube 1cm3 -
10.0 x 10.0 x10.0mm - purity 99.95%
The most accurate density standard cubes available - Made in Germany!
Pure European product - do not mix up with cheap chinese replicas!
Cobalt - Precision density-standard cube 1cm3 NEW! Laser engraved. 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).
A complete set with over 36 elements is available on request
Discovered in 1735 by G. Brandt in Stockholm, Sweden. Cobalt is a hard, grey metal which is ferromagnetic. It is usually found in association with nickel in arsenical ores, its abundancy in the Earth's crust being 20 ppm. Cobalt is relatively unreactive, being stable in air and only slowly attacked by dilute acids. It does not combine with hydrogen and nitrogen but it does react with carbon, oxygen and steam at elevated temperatures, producing CoO in the latter cases. Cobalt salts (primarily cobalt aluminate, known as "Cobalt Blue", or "Thenard's Blue") have been known of and used for centuries to provide a blue coloration to paints and ceramics. Cobalt alloys have good thermal and oxidation resistance, coupled with mechanical strength. The metal is also used in electroplating and its radioactive isotope, 60Cobalt, is used in the treatment of cancer.
scope of deliveryYou get one Cobalt - precision density-standard cube 1cm3
shipping fees
We calculate following shipping fees:
Table of shipping fees: Standard International Airmail (5 - 10 days lead time)
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!
