mineral · input
Bleaching earth (activated clay)
Acid-activated montmorillonite clay used to adsorb pigments, soap residues, and oxidation products from crude vegetable oil during the bleaching step of refining. Limited substitutes exist (activated carbon works but costs more).
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Companies
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Goods affected
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Claims on record
What depends on it
Goods that need this input
1 essential American goods rely on bleaching earth (activated clay) somewhere upstream in their supply chain.