Ion List

Title Formula Historical Name Hofmeister Series Position
Acetate

CH3COO-

Ethanoate

F  SO42− > HPO42−CH3COO > Cl > NO3 > Br > ClO3- >  I > ClO4 > SCN

Aluminium

Al3+

Aluminum Silicate

AlSiO4-

Ammonium

NH4+

NH4+ > K+ > Na+ > Li+ > Mg2+ > Ca2+ > HNC(NH2)2+

Azide

N3-

Barium

Ba2+

Benzoate

C6H6COO-

Beryllium

Be2+

Bismuth(III)

Bi3+

Bromide

Br-

F  SO42− > HPO42− > CH3COO > Cl > NO3Br > ClO3- >  I > ClO4 > SCN

Cadmium

Cd2+

Calcium

Ca2+

NH4> K+ > Na+ > Li+ > Mg2+ > Ca2+ > HNC(NH2)2+

Carbonate

CO32-

Cesium

Cs+

Chlorate

ClO3-

F− ≈ SO42− > HPO42− > CH3COO > Cl > NO3 > Br > ClO3- >  I > ClO4 > SCN

Chloride

Cl-

F  SO42− > HPO42− > CH3COO > Cl > NO3 > Br > ClO3- >  I > ClO4 > SCN

Chromate

CrO42-

Chromium(III)

Cr3+

Cobalt(II)

Co2+

Copper(I)

Cu+

Cuprous
Copper(II)

Cu2+

Cupric
Cyanide

CN-

Dichromate

Cr2O72-

Dihydrogen Phosphate

H2PO4-

Fluoride

F-

F  SO42− > HPO42− > CH3COO > Cl > NO3 > Br > ClO3- >  I > ClO4 > SCN

Formate

HCOO-

Methanoate
Guanidium

NC(NH2)2+

NH4> K+ > Na+ > Li+ > Mg2+ > Ca2+ HNC(NH2)2+

Hexacyanoferrate

Fe(CN)64-

Ferrocyanide
Hexamminecobalt(III)

Co(NH3)63+

Hydrogen Carbonate

HCO3-

Bicarbonate
Hydrogen Sulfate

HSO4-

Bisulfate
Hydrogen Sulfite

HSO3-

Bisulfite
Hypochlorite

ClO-

Iodate

IO3-

Iodide

I-

F  SO42− > HPO42− > CH3COO > Cl > NO3 > Br > ClO3- >  I> ClO4 > SCN

Iodoacetate

ICH2COO-

Iron(II)

Fe2+

Ferrous
Iron(III)

Fe3+

Ferric
Lactate

CH3CH(OH)CO2-

Lead(II)

Pb2+

Plumbous
Lead(IV)

Pb4+

Lithium

Li+

NH4> K+ > Na+ > Li+ > Mg2+ > Ca2+ > HNC(NH2)2+

Magnesium

Mg2+

NH4> K+ > Na+ > Li+ > Mg2+ > Ca2+ > HNC(NH2)2+

Malonate

CH2(COO)22-

Manganese(II)

Mn2+

Mercury(I)

Hg22+

Mercurous
Mercury(II)

Hg2+

Mercuric
Metaperiodate

IO4-

Metasilicate

SiO32-

Molybdate

MoO42-

Monohydrogen Phosphate

HPO42-

F  SO42− > HPO42− > CH3COO > Cl > NO3 > Br > ClO3- >  I > ClO4 > SCN

Nickel(II)

Ni2+

Nitrate

NO3-

F  SO42− > HPO42− > CH3COO > ClNO3 > Br > ClO3- >  I > ClO4 > SCN

Nitride

N3-

Nitrite

NO2-

Oxalate

C2O42-

Ethanedioate
Oxide

O2-

Perchlorate

ClO4-

F  SO42− > HPO42− > CH3COO > Cl > NO3 > Br > ClO3- >  I > ClO4 > SCN

Permanganate

MnO4-

Peroxide

O22-

Persulfate

S2O82-

Phosphate

PO43-

Potassium

K+

Kalic

NH4> K+ > Na+ > Li+ > Mg2+ > Ca2+ > HNC(NH2)2+

Rubidium

Rb+

(CH3)4N+ > Rb+ > K+ > Na+ > Li+ > Mg2+ > Ca2+

Selenite

SeO32-

Silicate

SiO44-

Silver

Ag+

Argentous
Sodium

Na+

Natric

NH4> K+ > Na+ > Li+ > Mg2+ > Ca2+ > HNC(NH2)2+

Strontium

Sr2+

Succinate

OOCCH2CH2COO2-

Sulfate

SO42-

F  SO42− > HPO42− > CH3COO > Cl > NO3 > Br > ClO3- >  I > ClO4 > SCN

Sulfide

S2-

Sulfite

SO32-

Superoxide

O2-

Tartrate

C4H4O62-

Tetraborate

B4O72-

Tetramethylammonium

N(CH3)+

Tetrathionate

O3SS2SO32-

Thiocyanate

SCN-

Rhodanide

F  SO42− > HPO42− > CH3COO > Cl > NO3 > Br > ClO3- >  I > ClO4 > SCN

Thiosulfate

S2O32-

Thiosulfate

S2O32-

Tin(II)

Sn2+

Stannous
Tin(IV)

Sn4+

Stannic
Tungstate

WO4-

Zinc

Zn2+