Solubility Finder
Solubility tables across common solvents and temperatures.
How to use this tool
Look up how much of a salt or compound dissolves in water across a range of temperatures, useful for planning a recrystallisation or checking whether something will stay in solution as it cools.
What to enter
- Search compound: type a name or formula (sodium chloride, KNO3, sucrose…). Matching works on either the name or the formula.
Reading the result
Each match shows a table of solubility in g per 100 g of water from 0 to 100 °C, a small bar chart of the trend, and a note on behaviour in organic solvents. Most salts dissolve more when hot; a few (e.g. Ca(OH)₂) are inversely soluble and come out of solution on heating.
Worked example
Search potassium nitrate (KNO₃): solubility climbs steeply from about 13 g/100 g at 0 °C to roughly 246 g/100 g at 100 °C, which is exactly why it recrystallises so cleanly on cooling.
About these figures
Aqueous solubilities are grams of solute per 100 g water at the stated temperature (mass basis). Most salts are more soluble hot; a few (Ce₂(SO₄)₃, Ca(OH)₂) are inversely soluble. Organic-solvent notes are qualitative (miscible / soluble / slightly / insoluble). Values are rounded reference figures, for exact saturation, consult a solubility curve.
Sources
- CRC Handbook of Chemistry and Physics (solubility tables); Seidell, Solubilities of Inorganic Compounds.