Magnesium is the ninth most abundant element in the universe. The free metal burns with a characteristic brilliant-white light. Hundreds magnesium for life pdf enzymes require magnesium ions to function.
Elemental magnesium is a gray-white lightweight metal, two-thirds the density of aluminium. Magnesium reacts with water at room temperature, though it reacts much more slowly than calcium, a similar group 2 metal. HCl reaction with aluminium, zinc, and many other metals. When burning in air, magnesium produces a brilliant-white light that includes strong ultraviolet wavelengths.
Controlling the quantity of these metals improves corrosion resistance. This requires precise control over composition, increasing costs. Adding a cathodic poison captures atomic hydrogen within the structure of a metal. This prevents the formation of free hydrogen gas, an essential factor of corrosive chemical processes. 1950s to 1970s was produced by several nuclear power plants for use in scientific experiments. The salt is then electrolyzed in the molten state. A new process, solid oxide membrane technology, involves the electrolytic reduction of MgO.
The anode is a liquid metal. A layer of graphite borders the liquid metal anode, and at this interface carbon and oxygen react to form carbon monoxide. When silver is used as the liquid metal anode, there is no reductant carbon or hydrogen needed, and only oxygen gas is evolved at the anode. This method is more environmentally sound than others because there is much less carbon dioxide emitted. In 1618, a farmer at Epsom in England attempted to give his cows water from a well there.
The cows refused to drink because of the water’s bitter taste, but the farmer noticed that the water seemed to heal scratches and rashes. Magnesium is used in super-strong, lightweight materials and alloys. For example, when infused with silicon carbide nanoparticles, it has extremely high specific strength. Historically, magnesium was one of the main aerospace construction metals and was used for German military aircraft as early as World War I and extensively for German aircraft in World War II. In the commercial aerospace industry, magnesium was generally restricted to engine-related components, due fire and corrosion hazards. Currently, magnesium alloy use in aerospace is increasing, driven by the importance of fuel economy. D magnesium projects in the Aerospace priority of Six Framework Program.
Le Mans in 1971, and continues to use magnesium alloys for its engine blocks due to the weight advantage. Z4, X1, X3, and X5. New alloy development and lower costs that make magnesium competitive with aluminium will increase the number of automotive applications. It produces intense, bright, white light when it burns. Magnesium’s high combustion temperature makes it a useful tool for starting emergency fires.
Magnesium is also often used to ignite thermite or other materials that require a high ignition temperature. Many car and aircraft manufacturers have made engine and body parts from magnesium. Burning or molten magnesium reacts violently with water. Therefore, water cannot extinguish magnesium fires. The hydrogen gas produced intensifies the fire. Dry sand is an effective smothering agent, but only on relatively level and flat surfaces. Hence, carbon dioxide fuels rather than extinguishes magnesium fires.