Diatomaceous earth

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Photo of SEM diatomaceous earth.

Diatomaceous earth (diatomite soil) - Organogenic rocks formed mainly from single-celled algae diatoms - diatoms. In addition there may be remnants of other organisms, detritus quartz and calcite, glauconite, clay substances and iron compounds. Diatomaceous earth is white or yellowish white, porous, light, soft, dusty, not concise. It is formed as a settlement of cold lakes and seas.

It is widely used in many industries as a filtering agent (among others in brewing), bleaching, dehydrating, refractory, heat insulation, acoustic, electric as absorbent liquid fertilizers, disinfectants and insecticides, for the manufacture of paints, lacquers , artificial stone, water glass, dynamite (as nitroglycerine stabilizer), paper industry, cleaning, polishing etc.

In Poland, diatomaceous earth exists in the vicinity of Poznan, Łódź, Augustów and Bircza.

It is extracted in Jawornik Ruski. Bibliography

wiki

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