Germanium Arsenic buffet trays with lids Arsenic is indeed not only poison, although it is capable

Below picture has released American Chemists Society, which argues that elements such as helium, zinc, silver, arsenic and less known as a key element buffet trays with lids Gallium, Germanium and Tellurium existence on earth is threatened. buffet trays with lids The reasons are different, but just as with plants and animals "red book" is to blame human nature operation.
All of the red elements except Helium is used in electronics. Helium buffet trays with lids but also can be found in association with the computer industry: Helium is used for the hard drive to ensure the internal atmosphere. Gallium, Hafnium and Tellurium is used in solder. Quite peculiar, buffet trays with lids as well as silver and zinc - metals that do not have exotic names are also at risk. You can also Phosphorus should be added to this list. This threat table does not list how much of each element is earth's crust due to the recently discovered radioactive elements 116, 117, etc. would all be red (as they have been created only a few atoms). This table shows the danger in relation to the actual application. Collection and use of helium Although rare on earth, helium is the second most abundant element in the universe (after hydrogen). Most helium was created for one to three minutes after the big bang. Earth helium atmosphere is 5.2 parts per million. Because helium is so light it does not easily escape from the atmosphere. Helium on earth through radioactive decay occurs because alpha radiation are helium nuclei. Uranium and other radioactive elements as Thorium mines it is much more. Storing radioactive waste should be taken into account pressure, buffet trays with lids which will lead to alpha radiation. This is because the uranium buffet trays with lids radioactive waste incurred a large amount of helium gas. Helium concentration in the ground: 8 parts per billion; concentration in sea water: 4 parts per trillion. Industry helium produced by the distillation of natural gas components. The use of helium. Source Zinc Zinc is the most abundant element buffet trays with lids 24 of the earth's crust. Brass is an alloy of zinc and copper. Based on the American Geological Service data used in the zinc deposit is 180 million. tons. In 2008, production is 10.5 million. tonnes per year. Zinc air oxidation (rust) and can therefore be used galvanization or zinc plating. Galvanized iron rust. Human health zinc is necessary because of a lack of zinc suffer are estimated at two billion people. Of course humans zinc is necessary for the micro-element and even if the zinc extraction industrial end it highly unlikely affect human health. People need zinc are just a few milligrams per day. Zinc is also used for skin creams and batteries. (A lot of unreliable information on the possible disappearance of the other elements.) Zinc application. buffet trays with lids (The same source.) Gallium Because gallium melts at room temperature it is possible to melt in your hand (and this is also not particularly toxic). Gallium used in semiconductors and solder used in the past because of its low melting temperature alloys. In nature, there are only gallium and mineral salts. Earth's crust is 16 parts per million. Reserve buffet trays with lids about 1 million. tons. (Artistic short-story about the disappearance of gallium.) Gallium crystals. Germanium in 2011, only 118 tonnes were produced with germanium. Price per kg is around $ 1000. It is used in optics and electronics. One of the elements that Mendeleev predicted the existence. Also used in solar cells. Germanium theoretically interesting might be due to the fact that it is located in one subset of carbon and has four valence electrons. However, it is too low in the periodic buffet trays with lids table and has crossed the metal-non-metal separation buffet trays with lids and hence carbon organic compounds (useful) buffet trays with lids peers do not.
Germanium Arsenic buffet trays with lids Arsenic is indeed not only poison, although it is capable of much poison (drinking water, for example). buffet trays with lids It is used as pesticide, electronics and semiconductors alloys with lead. All multicellular organisms with the exception of a few bacteria arsenic is poisonous. 53 of the most common element. 1 part per million buffet trays with lids of the earth's crust; 1 part per billion in seawater. Arsenic Silver is hard to say how real is the silver deficit problem, because there are many people who have invested money in silver and wants to grow its price and therefore distributes nonsense as this to increase demand. Silver is a white, soft and relatively inert material. The difference of gold has many practical applications. Silver rust, but the reaction of hydrogen sulfide in the air remains the darker buffet trays with lids and produces silver sulphide. Very small amounts of silver ionizing. Silver ions are antibacterial. Ancient Roman soldiers kept the drinks silver container. (But not all the antique world water storage methods were so innovative: buffet trays with lids such as lead pipes). In 2010 it was acquired 22 thousand. tonnes (mostly in Mexico). The price of silver fluctuates greatly (for example around 700 dollars per kilogram). Purity or fineness of gold are used in carats, but silver is another standard Sterling silver must contain at least 92.5% silver (residual of it is copper or other metals); it is because silver is relatively buffet trays with lids soft.