Saturated Solution


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Related to Saturated Solution: Supersaturated solution

Saturated Solution

 

a solution in stable equilibrium with an excess of the solute under given conditions (temperature and pressure). Examples are an aqueous solution of a salt in which crystals of the salt are present and a solution of a gas in water through which the same gas is being passed.

The concentration of a saturated solution—that is, the content of the solute in it—is called the solubility of the solute at a given temperature and pressure. In a given solvent under fixed conditions, this concentration may be very large for readily soluble substances but very low for poorly soluble substances. A solution containing a quantity of solute that is less than the concentration of the saturated solution under the given conditions is called unsaturated. In the absence of crystals of the solute, cooling of saturated solutions may not lead to crystallization, in which case a supersaturated solution results. A supersaturated solution contains more solute than a saturated solution. The introduction of a crystal of the solute into such a solution leads to precipitation of crystals from the solution. (For a discussion of saturated solutions in systems with limited mutual solubility, seeLIQUID MIXTURES and SOLID SOLUTIONS.)

References in periodicals archive ?
In Figure 4 it is possible to see the capillary absorption curve of red brick samples as a function of the root of time, after 1 and 2 cycles, with pure water and saturated solutions of KCl and [Na.sub.2]S[O.sub.4], for each joint type.
To guarantee the modification, we chose the saturated solution so the aluminum ion can impregnate onto the bone charcoal during the process of ultrasonic immersion.
After this time, was added a saturated solution of ammonium chloride (10 mL).
From the saturated solution of bismuth lactate in ASW, adequate dilutions were made to obtain different concentrations of lactate in ASW: 950, 930, 900, 750, 400, and 200 mg/L.
Nitric acid (HN[O.sub.3], 65%), hydrofluoric acid (HF, 40%) and boric acid ([H.sub.3]B[O.sub.3], saturated solution) were analytical-grade reagents.
For prevention of possible skew of the billet and ensuring of the assigned spacing uniformity over perimeter of the model, between the electrodes and the steel billets wooden distance bars were installed, placed only over the most upper edge of the current-leading section, while level of saturated solution of calcium chlorine that modeled the slag pool was located lower (Figure 1).
Ten of the 11 patients received oral itraconazole; 1 of these patients also received a saturated solution of potassium iodide, and 1 patient ceased oral antifungal therapy because of severe side effects.
The mixture was acidified with 50% solution of HCl and then the saturated solution of [Na.sub.2]S[O.sub.3] (prepared from 0.4 g of [Na.sub.2]S[O.sub.3]) was added.
In order to derive this dependency, it is assumed that rate of surface salt dissolution is proportionate to difference between concentration of saturated solution and immediate concentration of salt in technological water.
Some crystals dissolve for a saturated solution at a constant percent.
Before beginning, you will need to make (in a jug or bottle), a saturated solution of borax.