diatomaceous earth

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diatomaceous earth

n.
A light-colored porous rock composed of the shells of diatoms.

diatomaceous earth

n
1. (Geological Science) an unconsolidated form of diatomite. Also called: kieselguhr
2. (Minerals) an unconsolidated form of diatomite. Also called: kieselguhr

di′atoma′ceous earth′


n.
a fine siliceous earth composed chiefly of the cell walls of diatoms and used in filtration. Also called di•at•o•mite (daɪˈæt əˌmaɪt)
[1880–85]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.diatomaceous earth - a light soil consisting of siliceous diatom remains and often used as a filtering materialdiatomaceous earth - a light soil consisting of siliceous diatom remains and often used as a filtering material
filter - device that removes something from whatever passes through it
earth, ground - the loose soft material that makes up a large part of the land surface; "they dug into the earth outside the church"
References in periodicals archive ?
0% celite as an indigestible marker to increase the concentrations of acid-insoluble ash (AIA) for the determination of nutrient and energy utilization in the diets.
To a solution of TEMPO (5 mmol) and 1,3-dicarbonyl compounds (5 mmol) in 30 mL ethyl acetate, CAN (1 mmol) was added, the mixture was stirred at 60 degC for one and a half hours, filtered through celite, washed with ethyl acetate (3x20 mL), concentrated and purified on a silica gel chromatog-raphy to afford 2a-2k.
For this reason, more and more manufacturers are relying on Johns-Manville Celite diatomite filter aids to polish their products to a brilliant clarity.
Activation factors, such as celite (diatomaceous earth), kaolin, or TF, can be used for reducing lag time and may also increase sensitivity and minimize analytic variation.
Uma aliquota de 10 mL dos pigmentos extraidos foi aplicada em uma coluna de vidro (1,5 x 21cm), empacotada com celite e oxido de magnesio na proporcao de 2:1 ate a altura aproximada de 15 cm, tendo no topo aproximadamente 1cm de sulfato de sodio anidro.
To determine betacyanin content, of fresh leaves (100mg) were macerated with celite in distilled (5mL) water and centrifuged at 13632g and 4[degrees]C for 25min.
Pridobivane on dlgotrayni materialni and nematerialni acti-: IT and other facilities Furniture, softuer, patents, licenses, know-how is required for Celite project "Povishavane institutsionalniya on the bed capacity at Agentsiyata for sustainable development with the purpose energiyno predostavyane on poveche and on-quality services in oblastta on energiynata efektivnosti "on operational programa Development on konkurentosposobnostta on blgarskata ikonomika 2007-2013, from the European sfinansirana syuz through the European development Fund for the Regionalliga.
The catalyst was removed by filtration through a Celite pad; the desired amine is soluble in EtOH.
Jacobacci, Rio Negro, particle size < 500 ]a) or diatomaceous earth (Celite[R] 503, World Minerals, Celite Corporation), at either a high humidity of 75% RH [+ or -] 2 (using a saturated solution of sodium chloride; Winston & Bates 1960), or ambient humidity of 39.