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Chemistry, 20.11.2019 02:31 ZenMoss

Na galvanoplastia, o processo de decapagem se destina à obtenção de uma superfície metalicamente limpa, ou seja, isenta de impurezas e óxidos, por meio da remoção de camadas de óxido, ferrugem e casca de fundição ou laminação. nesse processo, a remoção se faz com soluções ácidas apropriadas, utilizando-se os ácidos clorídrico, sulfúrico, nítrico, fluorídrico e fosfórico. águas residuais dessa etapa do processo de galvanoplastia possuem caráter altamente ácido e precisam ser neutralizadas antes de seu descarte. elaborado pelo professor. o ácido clorídrico (hcl), citado acima, é formado pela ligação covalente entre o hidrogênio (h) e o não metal cloro (cl). adicionalmente, o elemento cloro pode formar outros ácidos, tais como o ácido cloroso, ácido clórico e ácido perclórico. esses três ácidos possuem, respectivamente, as seguintes fórmulas químicas. alternativas alternativa 1: hclo2, hclo3, hclo4. alternativa 2: hclo, hclo2, hclo3. alternativa 3: hclo, hclo3, hclo2. alternativa 4: hclo4, hclo3, hclo2. al

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