Silver nitrate (AgNO₃)
Silver nitrate is a chemical compound containing silver in its ionic form, used in ceramics to create decorative metallic effects. At low concentrations, silver nitrate can produce metallic luster effects, however, when used in higher concentrations, it can create iridescent finishes or more intense silver tones.
During the firing process, the silver contained in the silver nitrate reacts with the kiln environment, creating a shiny, glistening surface. This effect is achieved by the formation of a metallic layer on the surface of the glaze, which reflects light in a characteristic way, often generating a play of colors ranging from silvery to warmer shades, depending on the concentration of the silver nitrate and the firing conditions.
Thanks to its ability to generate shiny and decorative surfaces, silver nitrate is mainly used in the production of luxury ceramics, such as fine tableware, decorative objects and artistic pieces.Interesting Fact
In addition to its use in creating metallic and decorative effects, its ability to act as an antimicrobial has been exploited in some ceramic glazes. Due to the bactericidal properties of silver, some ceramists use silver nitrate in the manufacture of ceramic tableware or utensils that help inhibit the growth of bacteria, especially in products that will be in contact with food.Helpful Tip
Since silver nitrate is expensive and can be difficult to handle, it is important to apply small amounts in a controlled manner and always in decorative areas. Also, be sure to protect yourself properly during handling, as it can cause permanent stains on the skin.
