Potassium nitrate appears as a white to dirty gray crystalline solid. Water soluble. Noncombustible, but accelerates the burning of combustible materials.

Is KNO3 insoluble in water?

Potassium nitrate is moderately soluble in water, but its solubility increases with temperature.

How do you determine solubility?

Solubility indicates the maximum amount of a substance that can be dissolved in a solvent at a given temperature. Such a solution is called saturated. Divide the mass of the compound by the mass of the solvent and then multiply by 100 g to calculate the solubility in g/100g .

g) All carbonates are insoluble except those of sodium, potassium and ammonium. Magnesium carbonate is slightly soluble. Many hydrogen carbonates, such as Ca(HCO3)2 and Mg(HCO3)2, are soluble.