1. Gold is the elemental form of chemical element gold. It is a soft, golden yellow and corrosion-resistant precious metal. Gold is a rarer, more precious and more valuable metal. Gold is generally expressed in ounces internationally. In ancient China, Liang was used as the unit of gold. This is a very important metal. It is not only a special currency for reserve and investment, but also an important material for jewelry industry, electronics industry, modern communication, aerospace industry and other departments. The chemical symbol of gold is Au, and the financial English code is XAU or gold. The name Au comes from the story of Aurora, the goddess of dawn in Roman mythology, which means shining dawn. As of 202 1, 10, 12, the gold price is 1760 USD/oz.
Second, the use of gold:
1, used as international reserve: this is determined by the monetary commodity property of gold. Because of its excellent characteristics, gold has always been used as currency in history, such as value scale, circulation means, storage means, payment means, world currency and so on. Since1970s, the monetary function of gold has been weakened after the decoupling of gold and the dollar, but it still maintains a certain monetary function. Gold still occupies a very important position in the international reserves of many countries, including major western countries.
2, jewelry decoration: gorgeous gold jewelry has always been a symbol of a person's social status and wealth.
3. Application in industry and technology: Gold has very high corrosion resistance because of its unique excellent performance; Good electrical and thermal conductivity; The gold core has a large neutron capture effective cross section; The reflection ability of infrared ray is close to100%; It has many catalytic properties in gold alloys. Gold also has good machinability, which is very easy to be processed into ultra-thin gold foil, micron gold thread and gold powder; Gold is easily plated on the surfaces of other metals, pottery and glass. Under certain pressure, gold is easily welded and forged; Gold can be made into superconductor and organic gold. Because of its many beneficial characteristics, it has reason to be widely used in the most important modern high-tech industries, such as electronic technology, communication technology, aerospace technology, chemical technology, medical technology and so on.