German technology
Humic Substances Based Products
Humintech GmbH
Am Pösenberg 9-13
D-41517 Grevenbroich

Telefon: +49 2181 70 676 - 0
Fax: +49 2181 70 676 - 22
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Hydroxides are salt-like substances that contain negative lattice components (anions) in the form of hydroxide ions (OH-). Soluble hydroxides such as sodium hydroxide and potassium hydroxide form strong alkaline solutions (alkalis) with water. These are known as sodium hydroxide or potassium hydroxide. Less soluble hydroxides, e.g. barium hydroxide and calcium hydroxide form weak alkaline suspensions with water. The saturated solutions are called barite or lime water. If these two substances come into contact with carbon dioxide, they become cloudy. In the chemical laboratory, metal hydroxides are generally prepared by adding salt solutions with sodium or potassium hydroxide solution and then filtering off the precipitates, washing and air-drying them. In some cases, pure hydroxides are not formed in this process, but – after precipitation – oxide hydroxides, e.g. iron (III) oxide-hydroxide.


Humintech is a biotech company based in Grevenbroich, Germany. We are primarily focused on the research, development and industrial production of humic matter and humic acids for the agricultural sector.  Our products find further use in the feed, pharmaceutical and construction industry, in veterinary medicine and for ecological purposes such as water purification and soil decontamination.


Humintech GmbH

Am Pösenberg 9-13
41517 Grevenbroich / Deutschland 

Phone: +49 2181 70 676 - 0
Fax: +49 2181 70 676 - 22