fuller's earth


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fuller's earth,

mineral substance characterized by the property of absorbing basic colors and removing them from oils. It is composed mainly of alumina, silica, iron oxides, lime, magnesia, and water, in extremely variable proportions, and is generally classified as a sedimentary 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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. In color it may be whitish, buff, brown, green, olive, or blue. It is semiplastic or nonplastic and may or may not disintegrate easily in water. It was originally used in the fulling of wool to remove oil and grease but is now used chiefly in bleaching and clarifying petroleum and secondarily in refining edible oils. Fuller's earth is mined in many parts of the United States, Georgia and Florida being the leading producers, and in England near Reigate, Nutfield, and Bath. Before it can be used, it has to be crushed and dried.

fuller's earth

[¦fu̇l·ərz ¦ərth]
(geology)
A natural, fine-grained earthy material, such as a clay, with high adsorptive power; consists principally of hydrated aluminum silicates; used as an adsorbent in refining and decolorizing oils, as a catalyst, and as a bleaching agent.

fuller’s earth

A naturally occurring earthy substance, somewhat similar to potter’s clay but lacking its plasticity; used as a poultice to remove stains from stonework on a building.
References in periodicals archive ?
Bentonite, Fuller's earth, China clay and Zeolite at temperature of 300 to 350 K for 4 hrs.
If you have an oily skin then use two scoops of Fuller's Earth, the juice of one lemon and one drop geranium essential oil with two drops Bergamot oil.
The main uses of bentonite and fuller's earth take advantage of their natural sorptive and thixotropic properties.
Table 4: Select Natural Clays: A ComparisonII-21 Types of Clay II-21 Bentonite II-21 Applications II-22 Fuller's Earth II-22 Applications II-22 Kaolin II-22 Applications II-22 Activated Carbon II-23 Types of Activated Carbon II-23 Powdered Activated Carbon II-23 Granular Activated Carbon II-24 Applications II-24 Silica GelII-24 Activated Alumina II-25 Others II-25 Bauxite II-25 Iron Oxide II-25 Magnesium Oxide II-25 Zirconium Oxide II-26
Use one egg, stir in an ounce of milk and a squeeze of lemon juice; add two dessertspoons of Fuller's Earth.
United States 83 Overview 83 Fluorspar 84 Market Trends - A Quantitative Analysis by Mineral 84 Bentonite, Fuller's Earth & Allied Clays 84
In most of its high-volume markets, such as foundry sands, iron ore pelletising and drilling muds, the consumption of bentonite and fuller's earth is driven to a large extent by macroeconomic trends, which determine the overall level of demand in end-use markets i.
Rub on with a cotton cloth and sprinkle Fuller's Earth on greasy stains.
You can also use talcum powder or Fuller's Earth on non-washable fabrics and upholstery to absorb grease stains.
World production of bentonite has averaged 12Mtpy since the mid-1990s, with that of fuller's earth at about 4.
In early 1999, we acquired the fuller's earth business of American Colloid.