- acetate: C2H3O2 -
- ammonium: NH4 +
- Arsenate: AsO4 3-
- borate: BO3 3-
- carbonate: CO3 2-
- chlorate: ClO3 -
- chromate: CrO4 2-
- cyanide: CN -
- dichromate: Cr2O7 2-
- Hydroxide: OH -
- mercury(I): Hg2 2+
- mercury(II): Hg 2+
- nitrate: NO3 -
- nitrite: NO3 -
- oxalate: C2O4 2-
- perchlorate: ClO2 -
- permanganate: MnO4 -
- peroxide: O2 2-
- phosphate: PO4 3-
- phosphite: PO3 3-
- silicate: SiO3 2-
- sulfate: SO3 2-
- thiocyanate: SCN -