Cobalt is the chemical element with atomic number 27 and its symbol is Co.

The name probably derives from the Greek kobalos, translatable as goblin (but see also kobold), or from the German "kobolt", given by the German miners who blamed the goblins for letting them find a useless metal instead of silver.

It is a silvery-white, ferromagnetic and very hard element. Metallic cobalt is usually a mixture of two different crystallographic structures.

Mammals need small amounts of cobalt salts in their diet.

Cobalt was known since ancient times for its compounds that colored the glass a very beautiful blue.

Cobalt and its salts are used in numerous sectors and applications:

• Metal alloys
• Magnets and magnetic media for recordings
• Catalysts for the petrochemical and chemical industries
• Dehydrating compounds for paints, lacquers and inks
• Powders for porcelain and enamel coating
• Pigments: cobalt blue and cobalt green
• Electrodes for car batteries

Giveaway

Only yesterday the iron giveaway was activated and today we offer you a new element to add to your collection.

Compared to yesterday, the numbers are a bit smaller. 70 NFTs are available and this time we have decided to dedicate them all to an extraction among those who will comment on the article with their wax address by 31 December at 16:00 CEST.

In the iron giveaway we have given you a challenge, to exhaust the 150 NFTs available. Up to now, just over 100 comments have been received. There are about 24 hours to its conclusion. If at least 150 comments are reached, another 30 NFTs will be unlocked to be raffled on the cobalt giveaway.

Contact friends and give them the opportunity to participate in the iron giveaway:

• iron giveaway expiring December 30th 16:00 CEST
• subscriptions to Publish0x for new ones

The Periodic Table NFT project

The Periodic Table NFT project aims to raise awareness of chemical elements in a modern key, basing the approach on blockchain and Non Fungible Token.
Day after day it will be possible to know the single elements that make up the table, to collect curiosities about each of them and about the table in general.
We are working to be able to learn, in a playful way, also what happens by combining the various elements.
The whole project is based on the collection of NFTs that can be bought on the site https://wax.atomichub.io/market?collection_name=periodicelem&order=desc&sort=created&symbol=WAX or by participating in simple giveaways published on publish0x.

Elements released

• #1 Hydrogen (max supply 200)
• #2 Helium (max supply 200)
• #3 Lithium (max supply 200)
• #4 Beryllium (max supply 99)
• #5 Boron (max supply 99)
• #6 Carbon (max supply 200)
• #7 Nitrogen (max supply 200)
• #8 Oxygen (max supply 299)
• #9 Fluorine (max supply 149)
• #10 Neon (max supply 200)
• #11 Sodium (max supply 299)
• #12 Magnesium (max supply 99)
• #13 Aluminiun (max supply 299)
• #14 Silicon (max supply 200)
• #15 Phosphorus (max supply 200)
• #16 Sulfur (max supply 200)
• #17 Chlorine (max supply 299)
• #18 Argon (max supply 149)
• #19 Potassium (max supply 249)
• #20 Calcium (max supply 200)
• #21 Scandium (max supply 99)
• #22 Titanium (max supply 200)
• #23 Vanadium (max supply 149)
• #24 Chromium (max supply 200)
• #25 Manganese (max supply 200)
• #26 Iron (max supply 299)
• #27 Cobalt (max supply 200)

Molecule released

• H2O - Water (max supply 37)
• NaCl - Salt (max supply 64)
• CaC2 - Calcium carbide (max supply 46)

Link to save

• Market on atomichub for the purchase of NFTs
• Blog on publish0x to be updated
• Telegram channel
• Discord: in the "all-projects" channel

(Foto di Willgard Krause da Pixabay)