adsorptive clay

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Medicinal clay — German medicinal clay (Luvos Heilerde) consisting of loess, i.e. a mixture of sand, clay, and silt The use of medicinal clay in folk medicine goes back to prehistoric times. The indigenous peoples around the world still use clay widely, which is… … Wikipedia
Montmorillonite — A sample of montmorillonite (unknown scale) General Category smectite, phyllosilicate … Wikipedia
petroleum refining — Introduction conversion of crude oil into useful products. History Distillation of kerosene and naphtha The refining of crude petroleum owes its origin to the successful drilling of the first oil well in Titusville, Pa., in 1859. Prior to… … Universalium
fuller's earth — an absorbent clay, used esp. for removing grease from fabrics, in fulling cloth, as a filter, and as a dusting powder. [1515 25] * * * ▪ clay any fine grained, naturally occurring earthy substance that has a substantial ability to adsorb… … Universalium
Water retention curve — is the relationship between the water content, θ, and the soil water potential, ψ. This curve is characteristic for different types of soil, and is also called the soil moisture characteristic.It is used to predict the soil water storage, water… … Wikipedia

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