This makes iron a good choice to build containers for holding and transporting mercury. It forms amalgams with all the other metals except iron. Like noble gases, mercury forms relatively weak chemical bonds with other elements. Although mercury usually exhibits a +1 or +2 oxidation state, sometimes it has a +4 oxidation state. The electron configuration causes mercury to behave somewhat like a noble gas.The freezing point (-38.8 C) and boiling point (356 C) of mercury are closer together than all other metals. Most metals are excellent thermal conductors. It is a mild electrical conductor. Mercury is a relatively poor conductor of heat.Mercury does not react with most acids.This causes aluminum to corrode in much the same way as iron rusts. When mercury forms an amalgam with aluminum, the oxide layer that protects aluminum from oxidizing is disrupted. Mercury generally is not allowed on aircraft because it combines so readily with aluminum, a metal that is common on aircraft.Mercuric sulfide is the source of the red pigment called vermilion. It accounts for only about 0.08 parts per million (ppm) and is mainly found in the mineral cinnabar, which is mercuric sulfide. Mercury is a very rare element in the Earth's crust.Hydrargyrum comes from Greek words for "water-silver" ( hydr- means water, argyros means silver). The modern element symbol for mercury is Hg, which is the symbol for another name for mercury: hydrargyrum.Although mercury and all its compounds are known to be highly toxic, it was considered therapeutic throughout much of history.Mercury is the only metal that is a liquid at standard temperature and pressure. The only other liquid element under standard conditions is bromine (a halogen), although the metals rubidium, cesium, and gallium melt at a temperature just above room temperature. Mercury has a very high surface tension, so it forms rounded beads of liquid.
Discovered By: Known before 2000 BCE in China and India.Name Origin: The symbol Hg comes from the name hydrargyrum, which means "water-silver." The name mercury comes from the Roman god Mercury, known for his swiftness.Classification: Transition Metal or Post-Transition Metal.Take a look at this infographic to see 9 Fast Facts About Mercury, also known as Quicksilver. Unlike the Marvel character, the element Quicksilver cannot travel at superhuman speed or “vibrate atoms so quickly he travels forward in time,” but it is still a fascinating element. There are several US State and Federal Regulations that address the disposal and recycling of electronics and other consumer goods that could contain mercury, including switches, relays, and batteries. Because of health concerns, substitute resources are now being used in these consumer goods – though mercury can still be readily found in materials at scrap metal recycling facilities. Many people may still remember mercury thermometers that were placed under their tongues when they were younger, or watched the ‘mercury rise’ in outdoor thermometers. Mercury has been used in medical devices, batteries, paints, car switches, clocks, thermostats, dental amalgam, fluorescent lamps, and even soap. These alloys are called amalgams and are used to help extract gold from its ores. Mercury easily forms alloys with other metals, such as gold, silver, zinc and cadmium. (It stays in liquid form even at room temperature!) Although it’s been around since the ancient Egyptians, overall mercury use has declined owing to mercury toxicity and concerns for the environment and human health. Mercury, atomic number 80 on the periodic table, is a heavy, silvery-white liquid metal. It’s not just a character from the X-Men movies: Quicksilver is the alternative name for the metal Mercury.
0 kommentar(er)
