Mercury is a chemical element represented by the symbol (Hg), belonging to the twelfth group of the periodic table, called zinc-based, transition color of the silver metal, the only liquid metal under standard conditions of pressure and temperature. Mercury has an atomic number of 80, an atomic weight of 200.59, a melting point of 0.838, 87 ° C and a boiling point of 356.9 ° C. Natural mercury consists of seven different isotopes. As Hindus and ancient Chinese know, they are traceable: Found in the Egyptian tomb of 1500 BC. In China, India, and Tibet, it is widely believed that it can heal fractures, prolong life and stay healthy. The Greeks used creams like the Romans in cosmetics. Chemists believe they are the first to form all other minerals and can be produced by modifying the amount and quality of sulfur in mercury. chemistry analysis
Well known in ancient China and Hinduism, it was discovered in Egyptian tombs 3,500 years ago, pointing out that mercury is not useless, but comes in the form of hydrogen sulfide. Mercury (HgS), it should be noted that Spain and Italy have about half of the mercury content.
It is a very rare element of the earth’s crust representing only 0.08 ppm, mainly in cinnabar, the sulfide of mercury, a red pigment called samba.
It is a relatively low thermal conductor because most metals form excellent thermal conductors.
It is generally forbidden to use this product in airplanes because it mixes easily with the usual aluminum, destroying the oxide layer that prevents the oxidation of aluminum and prevents corrosion.
Although it often shows an equal number of oxidations (+ 1, + 2), it has an equal number of oxidation (+4).
He and his various compounds are highly toxic and should be treated with caution. Please follow special leak cleaning instructions to avoid exposure to toxicity. When heating.
It reacts with oxygen in the air when it is heated to form mercury oxide, which decomposes when heated to higher temperatures.
what is mercury 