Analisi chimica qualitativa/6° gruppo

Schema operativo riassuntivo

$\Vert \begin{array}{c}M{g}^{2+},N{H}_4^{+}\\ K^{+},N{a}^{+},L{i}^{+},\end{array}\{\begin{array}{c}---------------------------->ric{.}_{{}_{.}}M{g}^{2+},N{H}_4^{+}\\ ---->\Vert \begin{array}{c}acqu{a}_{{}_{.}}d{i}_{{}_{.}}barite\\ --->\\ Ph=12,\mathrm{\Delta }\end{array}\{\begin{array}{c}soluzione\Vert \begin{array}{c}{H}_{2}S{O}_{4}2N\\ ------------->ric{.}_{{}_{.}}N{a}^{+},K^{+},L{i}^{+}\\ pH=3-4\end{array}\\ \\ --------------(xxx)Mg(OH{)}_{2}s{i}_{{}_{.}}elimina\end{array}\end{array}$ Template:Avanzamento