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diatomaceous earth |
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diatomaceous earth: see diatom diatom (dī`ətŏm', -tōm') ..... Click the link for more information. . diatomaceous earthor kieselguhrLight-coloured, porous, and friable sedimentary rock composed of the frustrules (silicate cell walls) of diatoms. It is used in industrial filtration applications; as a filler or extender in paper, paint, brick, tile, ceramics, linoleum, plastic, soap, detergent, and other products; in insulation for boilers, blast furnaces, and other high-temperature devices; as a sound insulator; and as a carrier for herbicides and fungicides. The oldest and best-known commercial use is as a very mild abrasive in metal polishes and toothpaste. Large deposits occur in California, Nevada, Washington, and Oregon; other sources are Denmark, France, Russia, and Algeria. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Diatomite lends itself well to masterbatching at levels of 50% by weight. Products manufactured by the company are featured in a four-page, four-color brochure, including Promisil precipitated silica, kaolin, calcium carbonate, diatomite and aluminosilicate of sodium and calcium. With pressure diatomite earth filters, for example, when backwashed, the operator might assume that when the sight glass is clear, the filter elements are clean. |
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