Today, mercury is used for the manufacture of industrial chemicals and for electrical and electronic applications. It can be found in meteorological equipment like thermometers and barometers ...
However, today the use of mercury is being phased out for safer mercury-free products. In dentistry amalgam fillings are used for repairing cavities. These contain 50% mercury. Thiomersal (Thimerosal), a compound containing mercury, is a preservative used in many vaccines and some other pharmaceutical products (nasal sprays, eye drops ...
By Ellen Czaika and Bethanie Edwards . In preparing this blog post, we used information from Brooks’s 2012 chapter in Mercury in the Environment and Nriagu’s 1979 The Biogeochemistry of Mercury in the Environment, unless otherwise noted.. As with most elements, there is a fixed amount of mercury on the planet.
Mercury also used to be used as a component for dental amalgams for making fillings for teeth. 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 can be used to make thermometers, barometers and other scientific instruments. Mercury conducts electricity and is used to make silent, position dependent switches. Mercury vapor is used in streetlights, fluorescent lamps and advertising signs. Mercury easily forms alloys with other metals, such as gold, silver, zinc and cadmium. These ...
Today, the use of mercury in medicine has greatly declined in all respects, especially in developed countries. Thermometers and sphygmomanometers containing mercury were invented in the early 18th and late 19th centuries, respectively. In the early 21st century, their use is declining and has been banned in some countries, states and medical ...
Mercury amalgams were also used in dental fillings. Mercuric sulfide (vermilion) is a high-grade, bright-red paint pigment, but is very toxic so is now only used with great care. Biological role. Mercury has no known biological role, but is present in every living thing and widespread in the environment. Every mouthful of food we eat contains a ...
Most mercury today is produced from the mining of cinnabar, a bright red ore. For many years Spain and Italy were the largest producers of mercury. Spain mined mercury in order to use it in their mining process for silver in South America. Today, the majority of mercury is mined in China and Kyrgyzstan.
Mercury looks pretty, in its shiny, fast-moving liquid form, but don't touch! It can be extremely poisonous to humans. The symbol Hg that mercury is known by comes from its Greek name, hydrargyrum ...
The planets today shows you where the planets are now as a live display - a free online orrery. You can see the planets positions from 3000 BC to 3000 AD, and also which are in retrograde. This page also describes the basic principles of astrology.