acetate - CH3COO -

ammonium - NH4 +

borate - BO3 3-

cyanide - CN -

hydroxide - OH -

iodate - IO3 -

permanganate - MnO4 -

peroxide - O2 2-

chromate - CrO4 2-

dichromate - Cr2O7 2-

Carbonate - CO3 2-

hydrogen carbonate (bicarbonate) - HCO3 -

Nitrite - NO2 -

nitrate - NO3 -

phosphate - PO4 3-

hydrogen phosphate (biphosphate) - HPO4 2-

dihydrogen phosphate - H2PO4 -

hypochlorite - ClO -

chlorite - ClO2 -

chlorate - ClO3 -

perchlorate - ClO4 -

sulfite - SO3 2-

hydrogen sulfite - HSO3 -

sulfate - SO4 2-

hydrogen sulfate - HSO4 -