Views: 0 Author: Site Editor Publish Time: 2022-06-17 Origin: Site
Lithium is so dense that it floats on paraffin oil.
The first lithium ore, translithium feldspar (LiAlSi4O10), was discovered by Brazilians on a small Swedish island called Uto in the 1790s. When thrown into a fire it glowed with a strong crimson flame. Johan August Arfvedson of Stockholm analysed it and concluded that it contained a previously unknown metal, which he called lithium. He realized that this was a new alkali metal element. Unlike sodium, however, he could not isolate it by electrolysis. In 1821 William Brande electrolyzed a tiny amount of lithium, but not enough to make an experiment. It was not until 1855 that German chemist Robert Bunsen and British chemist Augustus Matthiessen electrolyzed lithium chloride to obtain large quantities of it. Lithium is called "Lithium" and comes from the Greek lithos, meaning "stone." The first syllable of Lithos is pronounced "li". Because it's metal, add an 's' to the left. The content of lithium in the earth's crust is much less than that of potassium and sodium , and its compounds are rare, which is an inevitable factor in its later discovery than potassium and sodium. The following year, lithium was confirmed by a reanalysis by the French chemist Volkland.
Lithium, with an atomic number of 3 and atomic weight of 6.941, is the lightest alkali metal element. The name of the element comes from Greek and means "stone". It was discovered in 1817 by Swedish scientist Afweicong in the analysis of a lithium feldspar ore. The main lithium minerals in nature are spodumene, lipopite, perite and phosphobauxite. Lithium is found in humans and animals, in soil and mineral water, cocoa powder, tobacco and seaweed. Lithium naturally comes in two isotopes: lithium-6 and lithium-7.
Lithium metal is a silver-white light metal; The melting point is 180.54°C and the boiling point is 1
In August 2018, a research team led by the National Astronomical Observatories of the Chinese Academy of Sciences (CAS), using the Guo Shoujing Telescope (LAMOST), a large scientific installation, discovered a strange celestial object with a lithium content of about 3,000 times that of similar objects, and an absolute lithium abundance of 4.51, which is the highest lithium abundance known to man. The important astronomical discovery was published online in the international scientific journal Nature Astronomy  in the early hours of August 7, Beijing time.