Organics

Notas

In the context of ceramic chemistry and glaze formulation, the term 'organic' refers to carbon-based matter derived from living or formerly living organisms. Unlike inorganic mineral oxides that remain part of the glass matrix after firing, organic materials are typically volatile and unstable at high temperatures. During the heating process, these substances undergo thermal decomposition, oxidizing and exiting the kiln atmosphere as gases such as carbon dioxide and water vapor. Consequently, organic constituents do not function as fluxes, glass formers, or stabilizers in a finished glaze. If present in raw materials, they must be fully burned off during the bisque or glaze firing phases; failure to achieve complete combustion can lead to surface defects such as blistering, pinholing, or carbon coring, as trapped gases attempt to escape the maturing glass layer.