PRISTINE FILTRATION, INC. - More About Diatomaceous Earth - Montrose, CO
PRISTINE FILTRATION, INC. - Making clean water possible for Anyone, Anywhere
More About Diatomaceous Earth
 
Diatomaceous Earth, also known as diatomite, kieselgur, or more commonly known as "DE", is a naturally occurring, soft, siliceous sedimentary rock that is easily crumbled into a fine white to off-white powder. It has a particle size ranging from less than 1 micrometre to more than 1 millimeter, but typically 10 to 200 micrometres. This powder has an abrasive feel, similar to pumice powder, and is very light, due to its high porosity. The typical chemical composition of oven dried Diatomaceous Earth is 80% to 90% silica, with 2% to 4% alumina, and 0.5% to 2% iron oxide.
Diatomaceous Earth consists of fossilized remains of diatoms, a type of hard-shelled algae. It is used as a filtration aid, mild abrasive, mechanical insecticide, absorbent for liquids, cat litter, activator in blood clotting studies, and a stabilizing component of dynamite. As it is also heat-resistant, it can be used as a thermal insulator.

Filtration
The most common use (68%) of diatomaceous earth is as a filter medium. It has a high porosity, because it is composed of microscopically-small, coffin-like, hollow particles. Diatomaceous Earth is used in chemistry as a filtration aid, to filter very fine particles that would otherwise pass through or clog filter paper. It is also used to filter water, particularly in the drinking water treatment process and in fish tanks, and other liquids, such as beer and wine. It can also filter syrups, sugar, and honey without removing or altering the color, taste, or nutritional properties of any of them.
 
 
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