− 1
acetate CHO 232 - hydrogen sulfite
amide NH 2 - or bisulfite HSO 3 -
azide N 3 - hydrosulfide
benzoate CHO 752 - or bisulfide HS-
bitartrate HC H O 446 - hydroxide OH-
bromate BrO 3 - hypochlorite ClO–
carbonate iodate IO 3 -
or bicarbonate HCO 3 - monobasic phosphate
chlorate ClO 3 - or dihydrogen
chlorite ClO 2 - phosphate HPO 2 4 -
cyanate OCN– nitrate NO 3 -
cyanide CN– nitrite NO 3 -
hydrazide NH 2 3 - perchlorate ClO 4 -
hydrogen permanganate MnO 4 -
hydrogen sulfate thiocyanate SCN–
or bisulfate HSO 4 - triiodide I 3 -
− 2
carbonate CO 32 - metasilicate SiO 32 -
chromate CrO 42 - oxalate CO 2 42 -
dibasic phosphate peroxide O 22 -
or hydrogen phthalate CHO 8442 -
phosphate HPO 42 - sulfate SO 42 -
dichromate Cr O 2 72 - sulfite SO 32 -
disulfate tartrate CHO 4432 -
or pyrosulfate SO 2 72 - tetraborate BO 4 72 -
manganate MnO 32 - thiosulfate SO 2 32 -
− 3
aluminate AlO 33 - ferricyanide Fe CN^h 63 -
arsenate AsO 43 - phosphate
arsenite AsO 33 - or tribasic
borate BO 33 - phosphate PO 43 -
citrate CHO 6573 - phosphite PO 33 -
− 4
ferrocyanide Fe CN^h 64 - silicate (ortho) SiO 44 -
Ionic Bonding