katalizidir

Katalizidir is a Turkish term used to denote that a substance or system possesses catalytic properties, meaning it speeds up a chemical reaction without being consumed in the process. In scientific Turkish, it functions as a predicate describing something as catalytic, for example referring to a reactant, product, or material that lowers the activation energy of a reaction.

The word derives from the noun kataliz (catalysis), which is part of the international scientific vocabulary. Its etymology traces through Turkish usage back to European languages, with roots in the Greek term katálisis, meaning loosening or breaking down, and the related concept of a reaction pathway that bypasses the original route.

In practice, katalizidir covers a broad range of catalysts and catalytic roles. It can describe heterogeneous catalysis, where a solid catalyst interacts with reactants in a different phase, or homogeneous catalysis, where all participants are in the same phase. Catalysts operate by providing an alternative mechanism with lower activation energy, accelerating the reaction while remaining chemically unchanged overall. They are not consumed in the reaction, though they can be deactivated by poisons, high temperatures, or side reactions. Catalytic activity is often influenced by surface properties, active sites, particle size, and reactor conditions, and it can be highly selective for specific products.

Common examples include enzymatic catalysts in biology, which regulate metabolic reactions, and industrial catalysts such as metals or metal oxides used in chemical manufacturing. Understanding katalizidir helps describe systems where catalytic efficiency and selectivity are central to performance and design. See also catalysis, enzymes, and industrial chemistry.