Mercury and its compounds used in dental practice may be responsible for release of mercury into the oral cavity. Mercury also used to be used as a component for dental amalgams for making fillings for teeth. On the periodic table, it has the symbol "Hg" and its atomic number is 80. This process has again been phase out due to health concerns but many people still have mercury containing fillings and crematoria are thought to emit about 5kg of mercury each year simply from dental fillings. Mercury is a naturally occurring trace metalloid element and known neurotoxin with atomic symbol Hg, atomic number 80, and atomic weight 200.59. It is commonly known as quicksilver and was formerly named hydrargyrum. It expands or becomes larger at high temperatures. It is characterized as a heavy, silvery-white metallic liquid at room temperature that is odorless. Mercury can be rightly considered as one of the elements with most ancient existence, and its discovery dates back to around 1500 B.C [1]. It contracts or becomes smaller at low temperatures. The prominent Chinese alchemist Ge Hong or Ko Hung (283 -343 C.E. 4 thoughts on “ History Of Mercury Use in Products and Processes ” Randall January 15, 2013 at 10:44 pm. Mercury is used in thermometers, mercury changes when the temperature changes. Deep within the cooling layers of rock, water rises on its way toward the surface. Small mercury spills can be treated with powdered sulfur. Symbol: Hg Atomic Number: 80 Atomic Weight: 200 Melting Point: -38.8 °C (-37.9 °F) Boiling Point: 356.73 °C (674 °F) Discovered by: Known since ancient times Meet the element mercury which is liquid at room temperature with an atomic number of 80. Mercury has been used in manufacturing, as well as in dental and medical equipment, fertilizers, and pesticides. It is commonly used in gold amalgamation. These regimens would often continue for … In 2 nd century China, the study of mercury centered on a search for an elixir of life to confer longevity or immortality. A major use of mercury is in electrical equipment such as fluorescent lamps, and mercury batteries. Compounds of mercury tend to be much more toxic than the element itself, and organic compounds of mercury (e.g., dimethyl-mercury) are often extremely toxic and may be responsible in causing brain and liver damage. Elemental mercury was heated for steam baths, where inhalation was considered beneficial (and is a potent route of mercury absorption). Unfortunate the element is so fascinating to look and has some truly extraordinary uses. Discovery and History. Mercury is also a chemical element. It is silvery in color and is classified as a transition metal. The line between alchemy and medicine was not always clear. Mercury Element Facts. Mercury (also quicksilver) is considered dangerous by skin absorption and inhalation of fumes. Mercury is used in thermometers because the change in volume for each degree of rise or fall in temperature is the same. Mercury, or 'quicksilver' as it is otherwise known, is a dense, toxic metal element that exists in liquid form at room temperature. Chapter One: Mercury All Around Us Properties and Uses of Mercury Mercury is an Element Imagine, long ago, hot lava flowing down a volcano in Italy. We've received many questions about mercury. It can change very quickly. Mercury has been used through-out history in many interesting ways, sometimes with disastrous effect. Mercury spills need to be cleaned up immediately. The element mercury is silver in colour. Our mercury is triple distilled, ACS instrument grade. Its common name is “quicksilver”. Mercury has many uses and is a very important element. 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