Dilution is a process that consists of obtaining a final solution with a lower concentration than at the outset, either by adding solvent, or by drawing off some of the solution and topping up with solvent to keep the same volume. Dilution is characterized by its dilution ratio. This concept presupposes that the diluted body is soluble in the solvent used.

The purpose of the dilution process is to reduce the concentration of a solution.

Dilution is obtained either by adding a quantity of solvent to the initial solution, or by removing part of it and adding more solvent to keep the same volume as the original solution.


The prerequisite is that the diluted product is soluble in the liquid being used.
Dilution is defined by a rate: thus, a 50% dilution means that the concentration of the solution is divided by 2.


Dilution is carried out in a tank with a magnetically driven agitator equipped with a turbine, anchor or propeller. This process is frequently used for the dilution or mixing of food products, easily miscible liquids or powders in the food industry, fine chemicals or pharmaceuticals.


Depending on the case, the magnetic stirrer must ensure low turbulence for products or liquids of similar density and/or viscosity, whereas a higher level of stirring is required otherwise, to ensure a good efficiency of the dilution process.

Equipment adapted for the application: Dilution :


stirrer propeller high hydraulic lift
Ax1 propeller for stirrer, hydraulic lift, optimized shear
stirrer propeller important shearing effect
Ax3 propeller for agitator, important shearing effect


stirrer curved blade turbine
Hydraulic Turbine Stirrers 3PC 6PC maintenance in Suspension
stirrer turbine starting mixtures in decantate
Stirrers Turbine with 2, 3 or 4 blades at 45°, Axial/radial flow