bentonite


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bentonite

(bĕn`tənīt'): see clayclay,
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.
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bentonite

[′bent·ən‚īt]
(geology)
A clay formed from volcanic ash decomposition and largely composed of montmorillonite and beidellite. Also known as taylorite.

bentonite

A clay, formed from decomposed volcanic ash, with a high content of the mineral montmorillonite; has the capability of absorbing a considerable amount of water, and swells accordingly.
References in periodicals archive ?
On the basis of product type, the global bentonite market is segmented into calcium, sodium, and others.
At ambient conditions, the 100% Southern bentonite (sand system B) was able to sustain a greater number of jolts and was stiffer and tougher than sand system A.
To obtain information of the interaction between bentonite clay and blend samples, Fourier transform infrared spectroscopy was also conducted in a Nicolet Avatar TM 360 equipment.
Salt effects on the adsorption of a pesticide on modified bentonite.
Bentonite sieved using a sieve with size of 250 mesh, washed several times with distilled water then filtered with a vacuum filter and dried at 110[degrees]C.
Demineralised water (750-1500g, the quantity of water increasing with increasing fraction of bentonite in the samples) was added to the samples and mixed using an electric stirrer to make homogeneous mixtures in glass beakers.
About 10 gm of the unfractionated pristine bentonite clay was dispersed in 300 ml of distilled water using a Remi, India stirrer for one hour at 300-400 rpm.
Bentonite, Fuller's earth, China clay and Zeolite at temperature of 300 to 350 K for 4 hrs.
This report was created for strategic planners, international marketing executives and import/export managers who are concerned with the market for bentonite in Morocco.
Clr Mehboob Khan, who represents the area on Kirklees Council, said: "The pond base was not suitable for relining so this time we're going to use Bentonite powder which will form a gel at the bottom.
In the present study, we seek to evaluate the effects of bentonite on the release of copper from contaminated soils.