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"At Chemiewerk Bad Koestritz we produce a wide range of high quality speciality chemicals in the heart of Germany, including silicia, molecular sieves and sulfur chemicals.

CWK stands for quality, process reliability and sustainable progress worldwide. We provide our customers with tailor-made materials for their specific applications. Professional commitment always goes hand-in-hand with unparalleled commitment to our social and ecological environment."

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Köstrosol

Köstrosol® 1030 P-FS is an opalescent aqueous dispersion of amorphous silicon dioxide nanoparticles. This intermediate small-size colloidal silica has a negatively charged surface (anionic) which is stabilized by Alkaline (Na+). Köstrosol® 1030 P-FS with controlled specification values receives a documented addition in maximum of 1400 mg/kg ACTICIDE® F(N) and 4.5-5.5 % (w/w) monoethylene glycole.

Köstrosol® 1030 P-FS

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® 1530

Köstrosol® 730 is a weak opalescent aqueous dispersion of amorphous silicon dioxide nanoparticles. This small-size colloidal silica has a negatively charged surface (anionic) which is stabilized by Alkaline (Na+). Köstrosol® 0730 is a pure colloidal silica without any organic additives.

Köstrosol® 730

Köstrosol® A 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+) and coated by aluminum oxide. Köstrosol® A 1530 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® A 1530

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 1520

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® 2040 AS

Köstrosol® AD 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 weakly acidic ion exchange.

Köstrosol® AD 1530

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.

Köstrosol® AD 2035

Köstrosol® 2018 DD is opalescent till whitish turbid dispersion of amorphous silica in water. It has a noncharged (full-deionized) surface without any stabilization (counter ion). This middle-size colloidal silica agglomerated in a relatively short time. Köstrosol® 2018 DD is a pure colloidal silica without any organic additives.

Köstrosol® 2018 DD

Chemiewerk Bad Kostritz

"At Chemiewerk Bad Koestritz we produce a wide range of high quality speciality chemicals in the heart of Germany, including silicia, molecular sieves and sulfur chemicals.

CWK stands for quality, pr

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