Meta (chemistry)
In chemistry, meta is a prefix, used for systematic names in IUPAC nomenclature. It has several meanings.
- In organic chemistry, meta indicates the positions of substituents in aromatic cyclic compounds. The substituents have the 1,3-positions, for example in resorcinol.
- Meta may also denote the dehydrated form of an acid, salt or organic derivative in a series. For example:
- *metabisulfite:
- :
- *metaphosphoric acid:
- :
- *Meta-antimonic acid, the dehydrated form of antimonic acid, is.