Manganese is the chemical element in the periodic table that has the symbol Mn and atomic number 25.
It is a gray-white metal, similar in appearance to iron; it is hard and very brittle, it can only be melted with difficulty and oxidizes very easily. Metallic manganese becomes ferromagnetic only after a specific treatment.
Manganese is essential for the production of iron and steel. The production of steel and other ferrous materials currently absorbs 85% to 90% of the world production of manganese: among other things, manganese is a key component for low-cost stainless steels and some large aluminum alloys. use.
Manganese is also used to discolor glass, to remove the greenish tint given to it by iron impurities: in very high concentrations it gives the glass a violet color.
Manganese has been used since prehistoric times: manganese dioxide pigments have been found in cave paintings 17,000 years ago.
Deposits of manganese are frequent on the earth's crust, but irregularly distributed; those in the US are pretty poor and mining is very expensive. Ukraine and South Africa together own more than 80% of all manganese deposits on earth: other manganese producers are China, Burkina Faso, Ghana, Mexico and Australia.
A chronic intoxication over several years from manganism (manganism) is characterized by the typical symptoms of parkinsonism, i.e. increased muscle tone, tremor, postural instability, hypoamimia. It is effectively a secondary form of Parkinson's syndrome. For this manganese is listed on the OSHA list of hazardous substances.
Giveaway
At Christmas everyone is better and so we decided not to complicate your life in this giveaway. Doesn't winning formula change? The usual distribution modes are maintained. Every so often we find ourselves increasing the numbers, but the requests are always higher and unfortunately someone is always excluded.
70 NFTs are dedicated to this giveaway:
- 25 to the first 25 users who will comment on this article with their WAX address
- 45 NFTs assigned with a drawing to all other users who will comment on the article by Sunday 27 December at 16:00 CEST
We also take advantage of it for a couple of information:
- we heard Santa Claus, in these two days he is busy with the children, but on the 26th he will dedicate himself to you
- the Chromium element giveaway was hosted in an article by DrYunani, in this article you will find the results and will be sent within a couple of days.
- finally, thanks to all those who participated in the four auctions of the special "Happy New Year" NFT. Congratulations to the 4 winners; they and everyone else who has made at least one offer will be the first to receive the second celebrity NFT.
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)
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
