GOBBO, JOAO P.FARIA, DALVA L.A. deMARTINELLI, JOSE R.2016-11-112016-11-112014GOBBO, JOAO P.; FARIA, DALVA L.A. de; MARTINELLI, JOSE R. Inertization of samall-scale chemical wastes using iron phosphate glass. <b>Quimica Nova</b>, v. 37, n. 6, p. 1058-1062, 2014. DOI: <a href="https://dx.doi.org/10.5935/0100-4042.20140175">10.5935/0100-4042.20140175</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/26792.0100-4042http://repositorio.ipen.br/handle/123456789/26792The viability of small-scale heavy-metal waste immobilization into iron phosphate glasses was investigated. Several waste forms containing different amounts of heavy-ion wastes were evaluated (5%, 10%, 15%, 20%, 26%, 33%, 40% and 50% by mass) and their X-ray diffraction patterns revealed that no crystallization occurred in glasses with waste concentrations up to 26%. The dissolution rates for all of the reported glass compositions (ca. 10–8 g cm–2 min–1) are similar to those reported for the materials most commonly used for waste vitrification. Iron phosphate glasses thus proved to be very useful for the immobilization of heavy-metal wastes, exhibiting good contention and chemical durability comparable to that of borosilicate glasses.1058-1062openAccesschemical wastesiron phosphatesglasswastesviabilityheavy ionsevaluationx-ray diffractionArtigo de periódico63710.5935/0100-4042.20140175