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 .

See also

• Arene substitution patterns

References