Solubility chart

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A solubility chart is a chart with a list of ions and how, when mixed with other ions, they can become precipitates or remain aqueous. The following chart shows the solubilities of various compounds, in water, at a pressure of 1 atm and at room temperature (approx. 293.15 K). Any box that reads "soluble" results in an aqueous product in which no precipitate has formed, while "slightly soluble" and "insoluble" markings mean that there is a precipitate that will form (usually, this is a solid), however, "slightly soluble" compounds such as calcium sulfate may require heat to form its precipitate. Boxes marked "other" can mean that many different states of products can result. For more detailed information of the exact solubility of the compounds, see the solubility table.

The chemicals have to be exposed to their boiling point to fully dissolve.

  Fluoride
F
Chloride
Cl
Bromide
Br
Iodide
I
Carbonate
CO32−
Chlorate
ClO3
Hydroxide
OH
Cyanide
CN
Cyanate
OCN
Thiocyanate
SCN
Nitrate
NO3
Oxide
O2−
Phosphate
PO43−
Sulfate
SO42−
Dichromate
Cr2O72−
Lithium
Li+
sS S S S sS S S S ? S S R ? S S
Sodium
Na+
S S S S S S S S S S S R S S S
Potassium
K+
S S S S S S S S S S S R S S S
Ammonium
NH4+
S S S S S S S S ? S S ? S S S
Beryllium
Be2+
S S S R ? ? ? ? ? ? S R ? S ?
Magnesium
Mg2+
sS S S S I S I ? ? ? S I I S I
Calcium
Ca2+
I S S S I S sS S ? ? S R I sS I
Strontium
Sr2+
sS S S S I S S ? ? ? S R ? I ?
Barium
Ba2+
sS S S S I S S S ? ? S R I[1] I ?
Zinc
Zn2+
sS S S S I S I I ? ? S I I S I
Iron(II)
Fe2+
S S S S I S I ? ? ? S I I S I
Copper(II)
Cu2+
sS S S ? I S I ? ? I S I I S I
Aluminium
Al3+
S S S X ? S I ? ? ? S I I S I
Iron(III)
Fe3+
X [note 1] S S ? X S I ? ? ? S I I sS I
Lead(II)
Pb2+
sS sS sS I I S I ? ? sS S I I I ?
Silver
Ag+
S I I I I S sS I I sS S sS I sS I
  Fluoride
F
Chloride
Cl
Bromide
Br
Iodide
I
Carbonate
CO32−
Chlorate
ClO3
Hydroxide
OH
Cyanide
CN
Cyanate
OCN
Thiocyanate
SCN
Nitrate
NO3
Oxide
O2−
Phosphate
PO43−
Sulfate
SO42−
Dichromate
Cr2O72−
Key:
S soluble
I insoluble
sS slightly soluble
X other
R reacts with water
? unavailable

See also[edit]

Notes[edit]

  1. ^ Anhydrous FeF3 is slightly soluble in water, FeF3·3H2O is much more soluble in water.

References[edit]

  1. ^ Hazen (1), Cleary (2), Jeffery L. (1), David A. (2) (July 2, 2014). "Yielding Unexpected Results: Precipitation of Ba3(PO4)2 and Implications for Teaching Solubility Principles in the General Chemistry Curriculum". Journal of Chemical Education. Retrieved November 27, 2017.