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cerâmica é feita principalmente de argila, misturada com outros minerais naturais como quartzo , feldspato, caulim e talco, além de água. Depois de moldada, a mistura passa por um processo de secagem e é cozida em fornos de alta temperatura , o que endurece o material de forma definitiva cerâmica assentada em banheiros
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Utilizado no experimento de remoção de ferro pesado por separação de feldspato potássico, o feldspato potássico contendo enxofre - óxido de ferro. O efeito é muito bom.
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