It is a synthetic clay that swells when dispersed in water, producing a colorless thixotropic gel. It is used in the conservation of stone, metals, organic materials, ceramics, and paintings. It has the appearance of a fine, very white powder. Laponite helps remove old water-based adhesives and facilitates the removal of ingrained dirt from stone and ceramics. It has a pH of 9.8 at a 2% suspension, a gel at a concentration of 2%, and is a colloidal dispersion. It allows the production of hydrogen peroxide gel.
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