TABLE 1.
Nomenclature of arsenic compoundsa
| Group and compound | Formula |
|---|---|
| Pentavalent | |
| Arsenic acid (arsenate) | (HO)2AsO(OH) |
| Methylarsonic acid (methylarsonate) | (CH3)(HO)AsO(OH) |
| Dimethylarsinic acid (dimethylarsinate) | (CH3)2AsO(OH) |
| Trivalent | |
| Arsenous acid (arsenite) | (HO)2As(OH) |
| Methylarsonous acid (methylarsonite) | (CH3)(OH)As(OH) |
| Dimethylarsinous acid (dimethylarsinite) | (CH3)2As(OH) |
a
The above names are those used in this review. Alternative names and abbreviations are as follows: for arsenic acid, orthoarsenic acid and arsenic(V) acid; for methylarsonic acid, methanearsonic acid, methylarsinic acid, and monomethylarsonic acid (abbreviations, MMAV and MMAA); for dimethylarsinic acid, dimethylarsonic acid, cacodylic acid, and hydroxydimethylarsine oxide (abbreviations, DMA and DMAA); for arsenous acid, arsenious acid and arsonic (III) acid; for methylarsonous acid, monomethylarsonous acid (abbreviation, MMAIII).