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home products Attapulgite Clay

Attapulgite Clay

Product Details:

Place of Origin Gujarat India
Keywords Other Non-Metallic Minerals & Products, Attapulgite Clay, , Aro-Chem Industries, India
Category Minerals & Metallurgy > Other Non-Metallic Minerals & Products 
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Detailed Product Description

Attapulgite is a kind of crystalloid hydrous magnesium-aluminum silicate mineral, having a special laminated chain structure in which there is a crystalline lattice displacement existed. Thus it makes the crystals contain uncertain quantities of Na+, Ca+, Fe3+ and Al, and present in the shape of needles, fibers or fibrous clusters. Attapulgite has very good colloidal properties such as: specific features in dispersion, high temperature endurance, salt and alkali resistance, and also high adsorbing and de-coloring capabilities. Furthermore, attapulgite has certain plastic and adhesive characters. Its ideal molecular formula is:


The structure is somewhat between laminated and chain structure. Attapulgite looks like soil, and compact blocks which are found in the sedimentary rocks and the weathering crust. Attapulgite are white, hoar, caesious or celadon, or with some dim mercerization in color. The clay of attapulgite is fine and a bit greasy smooth, light in weight, crispy, and the fractured surface is like shells or in irregular shapes. Attapulgite has strong ability to absorb water. When it is wet, attapulgite shows plastic and adhesive properties; and when it gets dry,attapulgite does not shrink much and does not show cracks. When it is soaked in water,attapulgite collapses. The suspending liquid does not create soliquids and precipitates, when meeting electrolytes.

Attapulgite clay mineral resources distribute in only several countries in the world at the present. Attapulgite reserve capacity of Xuyi contains the 70% in China, and 35% in the world. Compared to the largest commercial attapulgite deposits in the United States, Xuyi attapulgite products have the following special features:

Because the geological conditions under which Chinese attapulgite was deposited are different from that of the USA attapulgite deposits, our attapulgite products have very low grit (percentage retained on a 325 mesh wet screen), low free silica content, and low carbonate content.

Selectively mined and processed attapulgite products have a very high dispersion viscosity and API yield. The products processed from naturally occurring mixtures of attapulgite show especially high dispersion viscosity, high API yield, and extremely low grit.

As = 0.5
Pb = 1
Hg = 0.3

Toxicological test result of the attapulgite: Both Nanjing Municipal Sanitation and Antiepidemic Station and Nanjing Municipal Foodstuff Research Institute have carried out "The Comprehensive Sanitation and Safety Assessment on the Attapulgite Clay, a Natural Foodstuff Processing adjuvant". Their test results are as follows: Such heavy metals as arsenic, lead and mercury are not detectable in the attapulgite clay product, while total iron, sulfates, chlorides, nitrites, etc. are within the limits called for by the standards for processing adjuvant concerned. The tests on the content of the natural radioactive nuclide 238V,232TH,226Ra,40K, and the natural R radiation dosage at the surface of the mining area show that in the original ore and in the product those figures are lower than that in the natural background value, therefore they are within the normal range. The Ames test reveals negative results and there is no positive reaction on the micronucleus incidence rate of the polychromatic erythrocytes in the bone marrow chromosome of mice. The max non-reaction dosage to animals is 9,909.01mg/kg, showing that the test material is very safe to the health of humans and animals.

Attapulgite Clay

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