https://smiala.com/en/material/bleaching-earth/ Recent content in Bleaching Earth on Big-Bag to Silo Trailer Transloading — SMIALA Poland Hugo en Fri, 21 Nov 2025 00:00:00 +0000 https://smiala.com/en/wiedza/materialy/materialy-chemiczne/tonsil-ziemia-bielaca/ Tue, 05 Aug 2025 00:00:00 +0000 https://smiala.com/en/wiedza/materialy/materialy-chemiczne/tonsil-ziemia-bielaca/ <h2 id="definicja">Definition</h2> <p><strong>Bleaching earth</strong> (in German <em>Bleicherde</em>) is a mineral adsorbent obtained from montmorillonite clay — most often from bentonite raw material — subjected to <strong>acid activation</strong>. Its task is to purify and decolourise edible and industrial oils: it removes dyes, oxidation products, phospholipids, soaps and trace metals. <strong>Tonsil</strong> is one of the most recognisable trade brands of bleaching earths; in our fleet the <strong>Tonsil 571 FF</strong> grade appears regularly — a finely ground powder with a high decolourising capacity.</p>