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bentonite |
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bentonite (bĕn`tənīt'): see clay clay, common name for a number of fine-grained, earthy materials that become plastic when wet. Chemically, clays are hydrous aluminum silicates, ordinarily containing impurities, e.g., potassium, sodium, calcium, magnesium, or iron, in small amounts. ..... Click the link for more information. . bentonite [′bent·ən‚īt] (geology) A clay formed from volcanic ash decomposition and largely composed of montmorillonite and beidellite. Also known as taylorite. 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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Bentonite clay is much-used in the metalcasting industry as a bonding agent in green sand molds. The mill's previous program used cationic polyacrylamide (CPAM) and bentonite and was meeting performance needs, but the need to reduce costs led the mill to investigate alternatives. If molds or mycotoxins are present, try a binding compound such as MTB100 or sodium bentonite, Van Saun suggests. |
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