Search results
Results From The WOW.Com Content Network
The symbol for the planet Mercury (☿) has been used since ancient times to represent the element Hg is the modern chemical symbol for mercury. [ 28 ] It is an abbreviation of hydrargyrum , a romanized form of the ancient Greek name for mercury, ὑδράργυρος ( hydrargyros ).
The tradition remains today with the name of the element mercury, where chemists decided the planetary name was preferable to common names like "quicksilver", and in a few archaic terms such as lunar caustic (silver nitrate) and saturnism (lead poisoning). [4] [5] Lead, corresponding with Saturn ♄ Tin, corresponding with Jupiter ♃ ()
Although mercury is an extremely rare element in the Earth's crust, [68] because it does not blend geochemically with those elements that constitute the majority of the crustal mass, mercury ores can be highly concentrated considering the element's abundance in ordinary rock. The richest mercury ores contain up to 2.5% mercury by mass, and even ...
Gold and mercury were often used by alchemists (including Brahe) in medicines, and it was common for alchemists to link the Earth’s elements to properties in space and the human body. And there ...
The tradition remains today with the name of the element mercury, where chemists decided the planetary name was preferable to common names like "quicksilver", and in a few archaic terms such as lunar caustic (silver nitrate) and saturnism (lead poisoning).
Mercury compounds are reduced to elemental mercury simply by low-temperature heating (500 °C). Tin and iron occur as oxides and can be reduced with carbon monoxide (produced by, for example, burning charcoal) at 900 °C. Copper and lead compounds can be roasted to produce the oxides, which are then reduced with carbon monoxide at 900 °C.
Mitja Kobal/GETTY IMAGES. 2. Go Stargazing. Astronomy is one of the most fascinating and magical subjects, and stargazing is an undeniably romantic hobby and a good place to start if you and your ...
This amalgam is used as a reagent to reduce compounds, such as the reduction of imines to amines. The aluminium is the ultimate electron donor, and the mercury serves to mediate the electron transfer. [5] The reaction itself and the waste from it contain mercury, so special safety precautions and disposal methods are needed.