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Systematic naming prefix in chemistry
In
chemistry, meta is a
prefix, used for systematic names in
IUPAC nomenclature. It has several meanings.
[1]
- 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:
- 2
bisulfite (HSO−3) → 1 metabisulfite (S2O2−5) + H2O
- 3 orthophosphoric acid (H3PO4) → 1 trimetaphosphoric acid (H3P3O9) + 3 H2O
See also
References