diatomaceous earth


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diatomaceous earth:

see diatomdiatom
, unicellular organism of the kingdom Protista, characterized by a silica shell of often intricate and beautiful sculpturing. Most diatoms exist singly, although some join to form colonies.
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diatomaceous earth

[¦dī·ə·tə¦mā·shəs ′ərth]
(geology)
A yellow, white, or light-gray, siliceous, porous deposit made of the opaline shells of diatoms; used as a filter aid, paint filler, adsorbent, abrasive, and thermal insulator. Also known as kieselguhr; tripolite.

diatomite, diatomaceous earth, kieselguhr

A white or light gray, chalky, natural siliceous material; obtained by mining deposits of fossil remains of small marine life; used as an extender in paints, as an aggregate in lightweight concrete, as a waterproofing material in portland cement, as a filter for water, and as an abrasive.
References in periodicals archive ?
Before applying the diatomaceous earth, plastic sheets were taped to the floor to mask the insecticidal dust from areas serving as undusted controls.
Investigations were performed to compare diatomaceous earth (DE), a low thermal conductance refractory (high insulation coating), to graphite (G), a high thermal conductance refractory (low insulation coating), at temperatures and pressures that simulated pouring cast iron against a coated phenolic urethane coldbox (PUCB) disc (Fig.
It is not surprising that Cryptosporidium was not detected in samples of swimming pool water and diatomaceous earth filter.
We choose to use a relatively expensive pressure sensor as part of the design of the prototype tube tensiometer, but note that other less expensive technologies for measuring the height of the water table in the diatomaceous earth could have been used.
Diatomaceous earth is made of fossilized algae that is completely safe for garden use.
Diatomaceous earth is an effective mechanical pesticide against the rice weevil Sitophilus oryzae (L.
distributor is Maroon Group, Avon, Ohio) is said to combine the best attributes of talc, nepheline syenite (NS), and diatomaceous earth (DE).
1867: Swedish chemist Alfred Nobel first demonstrated the use of dynamite - his name for nitroglycerine absorbed into diatomaceous earth (kieselguhr) for added stability.
Since diatomaceous earth has many unique functions, mainly as a pesticide, site users have the opportunity to read numerous articles on the subject.
1 to 5 parts per hundred parts resin (phr) of one or more wax and from 75 phr to 200 phr of one or more extenders wherein the one or more extenders is selected from the group consisting of barium sulfate, titanium dioxide, iron oxides, crystalline silica (quartz), calcium metasilicate, soda lime glass spheres, magnesium silicate, nepheline syenite, muscovite mica, diatomaceous earth, kaolin clay and calcium carbonate.
These Lather & Love detox soaps use ingredients like neem, diatomaceous earth, and bamboo-activated charcoal to draw impurities from the skin.
Ji developed a methodology that mixed sodium chloride and magnesium with diatomaceous earth, a cheap and abundant form of silicon.