Due to its excellent physical properties, aluminum has been widely used in various industries of the national economy and defense industry. As a light structural material, aluminum is light in weight and strong in strength. Various means of transportation by sea, land and air, especially aircraft, missiles, rockets, artificial earth satellites, etc., all use a large amount of aluminum. The amount of aluminum used in a supersonic aircraft It accounts for 70% of its own weight, and the amount of aluminum used in a missile accounts for more than 10% of its total weight; various vehicles made of aluminum and aluminum alloys can reduce energy consumption, and the energy saved is far greater than that of aluminum smelting. The energy consumed; in the construction industry, aluminum alloys are used as the doors, windows and structural materials of houses; the solar collectors made of aluminum can save energy; in terms of power transmission, the consumption of aluminum ranks first, and 90% of high-voltage electrical wires are Made of aluminum; in the food industry, from storage tanks to cans, and even beverage containers are mostly made of aluminum; aluminum powder can be used as a reducing agent for refractory metals (such as molybdenum, etc.) and a deoxidizer in steelmaking. Most of the pots, plates and spoons used in daily life are made of aluminum.
Aluminum compounds such as aluminum hydroxide can be used to prepare aluminum salts, adsorbents, mordants and ion exchangers, and can also be used as raw materials for enamels, refractories, etc., as acid drugs in medicine, neutralizing gastric acid and treating ulcers. Function; sodium metaaluminate is often used in printing and dyeing fabrics; anhydrous aluminum chloride is a commonly used catalyst in the petroleum industry and organic synthesis; aluminum chloride hexahydrate can be used to prepare deodorants and safe disinfectants; sodium hexafluoroaluminate ( That is, cryolite), which is often used as a pesticide in agriculture; aluminum phosphide releases highly toxic phosphine gas when it encounters moisture or acid, which can poison pests and is used as a fumigant for barn insecticides in agriculture; aluminum sulfate is commonly used It is used as a filler for papermaking; aluminum nitrate can be used for tanning leather and incandescent electric filament, and can also be used as a mordant; aluminum silicate is often used as a pigment for glass, ceramics, paints, and fillers for paints, rubber and plastics; sucralfate Also known as Wei Sui Ning, the scientific name is sucrose sulfate basic aluminum salt, it can combine with pepsin, directly inhibit the proteolytic activity, has a long-lasting effect, and can form a protective film, which has a strong protective effect on the gastric mucosa. Acidic action, help mucosa regeneration, promote ulcer healing, low toxicity, is a good gastrointestinal ulcer treatment agent.
In recent years, some new aluminum-containing compounds have been developed, such as aluminum oxide used as a wear-resistant layer for composite wood floors, as well as alkyl aluminum and nano-alumina. With the development of science, people will make more and better use of aluminum and its compounds for the benefit of mankind.