Nascent state (chemistry)

The term nascent substance (less often you will also find the spelling nascierend ) ( from the Latin deponent nasci, come to the world to be born ', or even nascent status ) in chemistry the state ( nascent ) of a chemical compound or chemical element at the moment of its formation in the course of a chemical reaction.

Substances may have significant differences, for example in terms of their reactivity, depending on whether they are nascent or not. An example is nascent hydrogen generated by the reaction of an acid with base metals. Nascent hydrogen (abbreviated Hnasc. Hnasz or. ) Has a higher reducing power as molecular hydrogen (H2). On the one hand he is immediately after its formation atomically before, on the other hand he is shortly after the formation of H2 even in an energetically excited state.

Other examples are nascent chlorine ( Clnasc. ), which is produced in addition to the also very reactive nitrosyl NOCl in aqua regia and is a strong oxidant, as well as nascent oxygen ( Onasc. ) which results from the reaction of manganese dioxide, for example, with peroxides.

Such reactive materials are often characterized by the Latin name in the nascent state, which translated means " in a state of birth", that is " just emerging ."