Master list of ionic compound solubility
Compound
(moles/liter of solvent)
Highly soluble:
solubility
potassium acetate
ammonium sulfide
lithium bromide
calcium chlorate
potassium hydroxide
ammonium acetate
sodium acetate
ammonium nitrate
lithium iodide
ammonium iodide
magnesium acetate
sodium nitrate
sodium hydroxide
magnesium chromate
ammonium carbonate
potassium iodide
potassium carbonate
ammonium bromide
sodium chlorate
calcium nitrate
silver nitrate
calcium bromide
magnesium chlorate
lithium acetate
calcium chloride
sodium chloride
magnesium chloride
ammonium chloride
barium iodide
magnesium iodide
potassium bromide
lithium hydroxide
sodium chromate
ammonium sulfate
lead (II) chlorate
magnesium nitrate
potassium chloride
potassium phosphate
calcium iodide
potassium chromate
lithium sulfate
barium bromide
26
19
18
17
19
19
15
15
11
11
10
10
10
9.8
8.8
8.7
8.1
7.9
7.4
7.4
7.2
7.2
7.1
6.8
6.7
6
5.7
5.6
5.6
5.5
5.5
5.4
5.4
5.3
5.0
4.7
4.6
4.2
3.9
3.2
3.2
3.1
lithium chloride
calcium acetate
barium acetate
magnesium sulfate
strontium acetate
sodium sulfide
barium chloride
lead (II) acetate
lithium nitrate
potassium nitrate
lead (II) nitrate
ammonium phosphate
barium chlorate
calcium chromate
potassium sulfate
sodium carbonate
potassium chlorate
barium sulfide
barium nitrate
sodium phosphate
2.5
2.4
2.3
2.2
2.0
1.9
1.8
1.4
1.3
1.3
1.1
1.3
.90
.85
.67
.67
.59
.45
.33
.26
Slightly soluble:
barium hydroxide
lithium carbonate
strontium hydroxide
mercury (I) acetate
lead (II) chloride
calcium hydroxide
lead (II) bromide
silver sulfate
calcium sulfate
magnesium carbonate
.18
.18
.17
.08
.036
.025
.023
.018
.015
.01
Insoluble (for practical purposes)
calcium sulfide
lead (II) iodide
lead (II) hydroxide
barium phosphate
magnesium hydroxide
calcium carbonate
lead (II) sulfate
barium carbonate
strontium sulfate
calcium phosphate
silver chromate
2.9x10-3
1.3x10-3
6.2x10-4
1.7x10-4
1.6x10-4
1.4x10-4
1.4x10-4
1x10-4
7.2x10-5
6.5x10-5
4.2x10-5
lead (II) sulfide
silver phosphate
barium chromate
silver carbonate
barium sulfate
magnesium phosphate
silver chloride
mercury (I) chloride
lead (II) carbonate
lead (II) chromate
lead (II) phosphate
mercury (I) bromide
3.6x10-5
1.6x10-5
1.3x10-5
1.2x10-5
9.4x10-6
7.6x10-6
6.2x10-6
6.25x10-6
4.1x10-6
1.8x10-7
1.7x10-7
2.4x10-8
The borderlines of these groupings is not defined.
This is just my opinion.
Ammonium
Barium
Calcium
Lead (II)
Lithium
Magnesium
Mercury (I)
Potassium
Silver
Sodium
Strontium
List patterns that you see (including their exceptions):
sulfide
sulfate
phosphate
nitrate
iodide
hydroxide
= insoluble (for practical purposes!)
chromate
chloride
chlorate
= slightly soluble
carbonate
bromide
acetate
= soluble
Alkali metals and ammonium salts,
Whatever they may be,
Can always be depended on for
solubility
Every single sulfate
Is soluble, 'Tis said
'Cept barium, strontium, mercury one
And calcium and lead.
When asked about the nitrates
The answer is always clear,
They each and all are soluble,
Is all we want to hear.
Hydroxides in general
don't dissolve at all
But, barium, strontium and calcium
Are slightly soluble
Most every chloride's soluble
At least we've always read
Save silver, mercury one
And chloride of lead
The carbonates are insoluble,
It's lucky that it is so,
Or else, our marble buildings
Would melt away like snow.
Alkali metals and ammonium salts
Whatever they may be
Can always be depended on
For solubility
Alkali metals and ammonium salts
Whatever they may be
Can always be depended on
For solubility
SOLUBILITY GUIDELINES (for Ionic Reactions)
Soluble Compounds
NOT precipitates
Nitrates
Acetates
Chlorates
Chlorides
Bromides
Iodides
Sulfates
Exceptions
PRECIPITATES
None
None
None
Ag+1, Hg2+2, Pb+2
Ag+1, Hg2+2, Pb+2
Ag+1, Hg2+2, Pb+2
Ca+2, Sr+2, Ba+2, Hg2+2, Pb+2
Insoluble Compounds
PRECIPITATES
Sulfides
Carbonates
Phosphates
Hydroxides
Chromates
Exceptions
NOT Precipitates
NH4+1, Li+1, Na+1, K+1, Ca+2, Sr+2, Ba+2
NH4+1, Li+1, Na+1, K+1
NH4+1, Li+1, Na+1, K+1
Li+1, Na+1, K+1, Ca+2, Sr+2, Ba+2
NH4+1, Li+1, Na+1, K+1, Ca+2, Mg+2