Products

Köstrosol® 1530 is an opalescent aqueous dispersion of amorphous silicon dioxide nanoparticles. This middle-size colloidal silica has a negatively charged surface (anionic) which is stabilized by Alkaline (Na+). Köstrosol® 1530 is a pure colloidal silica without any organic additives.

Köstrosol® 2040 AS is opalescent to a clouded liquid aqueous dispersion of amorphous silicon dioxide nanoparticles. This middle-size colloidal silica has a negatively charged surface (anionic) which is stabilized by Ammonia (NH4+). Köstrosol® 2040 AS is a pure colloidal silica without any organic additives.

Köstrosol® WA 1520 is an opalescent aqueous dispersion of amorphous silicon dioxide nanoparticles. This middle-size colloidal silica is pre-final coated and stabilized by aluminum oxide. Afterward, the PH is adjusted by a strongly acidic ion exchange. Köstrosol® WA 1520 with the tested specification values receives an documented addition of sodium hypochlorite in order to obtain a residual chlorine content of between 1 - 3 mg/L (as Cl2) at the time of delivery.

Köstrosol® WA 1530 is an opalescent aqueous dispersion of amorphous silicon dioxide nanoparticles. This middle-size colloidal silica is pre-final coated and stabilized by aluminum oxide. Afterward, the PH is adjusted by a strongly acidic ion exchange. Köstrosol® WA 1530 with tested specification values receives an documented addition of sodium hypochlorite in order to obtain a residual chlorine content between 1 - 3 mg/L (as Cl2) at the date of delivery.

Köstrosol® AD 2035 is a whitish turbid aqueous dispersion of amorphous silicon dioxide nanoparticles. This middle-size colloidal silica is pre-final coated and stabilized by aluminum oxide. Afterward, the PH is adjusted by a weakly acidic ion exchange.