Diatomaceous earth

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Diatomaceous Earth

Diatomaceous earth (/ˌdaɪ.ətəˈmeɪʃəs ˈɜːrθ/), also known as D.E., diatomite, or kieselgur/kieselguhr, is a naturally occurring, soft, siliceous sedimentary rock that is easily crumbled into a fine white to off-white powder.

Etymology

The term "Diatomaceous earth" comes from the root words "diatom", a type of hard-shelled algae, and "earth", referring to the soil-like substance in which these organisms are found.

Description

Diatomaceous earth is made up of the fossilized remains of tiny, aquatic organisms called diatoms. Their skeletons are made of a natural substance called silica. Over a long period of time, diatoms accumulated in the sediment of rivers, streams, lakes, and oceans. Today, silica deposits are mined from these areas.

Uses

Diatomaceous earth has a variety of uses. These include:

  • Pest control: The fine powder absorbs lipids from the waxy outer layer of insects' exoskeletons, causing them to dehydrate and die.
  • Filtration: The fine powder can be used in water filters due to its porous nature.
  • Abrasives: In metal polishes and toothpaste.
  • Absorbents: For liquids including industrial spills and pet litter.
  • Stabilizing component: In dynamite, it is used as a stabilizer.

Health Risks

While food grade diatomaceous earth is safe for consumption in humans and animals, inhalation of it can be harmful to the lungs, especially for people with respiratory issues.

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