Solubility chart

A solubility chart is a chart describing whether the ionic compounds formed from different combinations of cations and anions dissolve in or precipitate from solution.

The following chart shows the solubility of various ionic compounds in water at 1 atm pressure and room temperature (approx. 25 °C (298.15 K)). "Soluble" means the ionic compound doesn't precipitate, while "slightly soluble" and "insoluble" mean that a solid will precipitate; "slightly soluble" compounds like calcium sulfate may require heat to precipitate. For detailed information on exact solubility of compounds, see solubility table.

For compounds with multiple hydrates, the solubility of the most soluble hydrate is shown.

Some compounds like nickel oxalate will not precipitate immediately even though they are insoluble, requiring a few minutes to precipitate out.

Ions names and symbols Halogens Chalcogens Pnictogens Crystallogens
Fluoride
F
Chloride
Cl
Bromide
Br
Iodide
I
Perchlorate
ClO
4
Oxide
O2−
Hydroxide
OH
Sulfide
S2−
Sulfate
SO2−
4
Nitrate
NO
3
Phosphate
PO3−
4
Carbonate
CO2−
3
Cyanide
CN
Thiocyanate
SCN
Acetate
C
2
H
3
O
2
Oxalate
C
2
O2−
4
Hydrogen H+ S S S S S S S sS S S S S S S S S
Ammonium NH+
4
S S S S S S S R S S S S S S S S
Lithium Li+ sS S S S S R S R S S sS sS S S S S
Sodium Na+ S S S S S R S R S S S S S S S S
Potassium K+ S S S S sS R S R S S S S S S S S
Rubidium Rb+ S S S S sS R S R S S S S S S S S
Caesium Cs+ S S S S sS R S R S S S S S S S S
Beryllium Be2+ S S S R S I I R S S I sS R S S S
Magnesium Mg2+ sS S S S S R I R S S I sS R S S sS
Calcium Ca2+ I S S S S R sS R sS S I I R S S sS
Strontium Sr2+ sS S S S S R sS R sS S sS I S S S I
Barium Ba2+ sS S S S S R S R I S I sS S S S I
Aluminium Al3+ sS S S S S I I R S S I R R S S I
Gallium Ga3+ I S S R S I I R sS S I R R S S ?
Manganese(II) Mn2+ sS S S S S I I I S S I I S S S I
Iron(II) Fe2+ sS S S S S I I I S S I I S S S sS
Cobalt(II) Co2+ sS S S S S I I I S S I I I S S I
Nickel(II) Ni2+ S S S S S I I I S S I I I S S I
Copper(II) Cu2+ sS S S ? S I I I S S I I I I S I
Zinc Zn2+ sS S S S S I I I S S I I I S S I
Cadmium Cd2+ S S S S S I I I S S I I sS sS S I
Mercury(II) Hg2+ R S sS I S I I I R S I I S sS S sS
Vanadium(III) V3+ I S S S S I I I sS S I ? ? S ? ?
Chromium(III) Cr3+ sS S S S S I I I S S I I S S S ?
Iron(III) Fe3+ S S S R S I I I S S sS R S S S sS
Gold(III) Au3+ R S sS ? ? I I I ? ? I I S ? sS ?
Tin(II) Sn2+ S S S S S I I I S ? I I ? I R sS
Lead(II) Pb2+ sS sS sS sS S I sS I I S I I sS sS S I
Silver Ag+ S I I I S I I I sS S I I I I sS I
Mercury(I) Hg2+
2
R I I I S I ? ? sS S ? I I ? S ?
  Fluoride
F
Chloride
Cl
Bromide
Br
Iodide
I
Perchlorate
ClO
4
Oxide
O2−
Hydroxide
OH
Sulfide
S2−
Sulfate
SO2−
4
Nitrate
NO
3
Phosphate
PO3−
4
Carbonate
CO2−
3
Cyanide
CN
Thiocyanate
SCN
Acetate
C
2
H
3
O
2
Oxalate
C
2
O2−
4
Key
S soluble 20~100000 g/L
sS slightly soluble 0.1~20 g/L
I insoluble <0.1 g/L
R reacts with or in water
? unavailable

See also


This page was last updated at 2024-03-02 11:30 UTC. Update now. View original page.

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