OPTIMIZATION OF SURFACTANT DOSE

Basic Models with additional OPTIONS and ACCESSORIES. Download BROCHURES.

Surfactants are often used for enhancing aggregative stability of dispersions and emulsions. Optimization of the dose is critical because over-dosing leads to flocculation, whereas under-dosing does not achieve desirable result. Model DT-310 and/or Titration Option OP002 for other models have the capability of conducting a so-called “surfactant titration”. In this case we fill bottles that are connected to the burettes with a surfactant solution. Software protocol specifies the number of points and total amount of the injected surfactant

The slide below illustrates results of such a surfactant titration. In this particular case the surfactant was hexametaphosphate. Slurry was 40% kaolin in water.

You can see that Zeta potential reaches maximum absolute value at about 0.5% of hexametaphosphate to kaolin by weight. This is the optimum dose for stabilizing this slurry.

optimization-of-surfactant-doze