TERMIUM Plus®

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WALKERS EARTH [1 record]

Record 1 2005-05-11

English

Subject field(s)
  • Geochemistry
  • Mineralogy
DEF

A very fine-grained, naturally occurring clay or claylike material possessing a high adsorptive capacity, consisting largely of hydrated aluminum silicates (chiefly the clay minerals montmorillonite and polygorskite). Used originally in England for whitening, degreasing, or fulling (shrinking and thickening by application of moisture) woolen fabrics ...

OBS

Use: Decolorizing of oils and other liquids, oil-well drilling muds, insecticide carrier, floor-sweeping compounds, cosmetics, rubber filler, carrier for catalysts, filtering medium.

OBS

walker's earth: Fuller's earth in Ludlow Shales.

French

Domaine(s)
  • Géochimie
  • Minéralogie
DEF

Argile smectique, provenant de la décomposition de certains schistes. (Délayée dans l'eau et battue, elle mousse comme le savon. Sa propriété d'absorber les corps gras la faisait employer pour le dégraissage et le foulage des tissus.)

CONT

Les argiles ont été employées de longue date comme absorbants des graisses: «argiles à foulons».

Key term(s)
  • argile à foulons

Spanish

Campo(s) temático(s)
  • Geoquímica
  • Mineralogía
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