Next, learn about Gold Leaf and Gold Plate | Advances in the Use of Gold. For example, gold is used as a catalyst in the production of vinyl acetate monomer (VAM), an important industrial chemical used as a feedstock for paints and adhesives. Gold has many uses as a catalyst in industrial processes. This application also serves to reduce the amount of light and glare that enters through the glass as well. The reflective window glazing aid in controlling solar heat gain by reducing the transmission of solar radiation. Tiny quantities of gold are applied to window glass to reflect most of the sun’s rays, which makes them more energy efficient during the summer. The reflective properties of gold have also been exploited in large office buildings with glass facades.
#Star yellow sapphire gem tower defense windows
When gold is incorporated into the windows of buildings, it makes them more energy efficient. Gold thread is also incorporated in astronauts’ spacesuits to protect them from the heat of the sun. It is used in the windshields of jets, the visors of astronauts’ helmets, and on satellites and other space vehicles. Typically, mid-quality untreated blue sapphire will sell for 20-30 more than. Note: If certified Burmese and untreated, add 50, except fair or lower grades. Gold is also used in cars within the anti-lock brake and airbag deployment systems.īecause it reflects up to 98 percent of infrared radiation, gold has applications in the defense and aerospace industries as well. Add to 20 or deduct to 10 for other cutting. The circuitry of computers, calculators, televisions, telephones, and fire detectors are often plated with gold. Gold is used in the visors of the astronauts’ helmets to protect them from infrared radiation.īecause it is an excellent conductor of heat and electricity, gold is used extensively in the electronics industries in items such as printed circuits and in transistors. Gold is also being used in clinical trials to treat cancer, malaria, and HIV infection. Acupuncture needles are often made of gold. Gold is also used in the wires for pacemakers and in stents inserted to combat arterial disease. Hearing aids and implants in the inner ear are coated with gold to prevent allergic reaction and to resist bacterial infection. The circuitry of cell phones is often plated with gold. Gold was used in ancient Egypt to fill decayed teeth, a practice that has continued to the present day. Because it does not react with other substances it is said to have excellent biocompatibility. It is also increasingly used as a catalyst in many industrial processes. Because of its inherent properties, gold is used in the medical, electronics, automotive, defense and aerospace industries. Approximately 11 percent of all gold produced is used in industry.