Test de reconnaissance des ions Cuivre (Cu2 ) : Réactif utilisé la Soude (Hydroxyde de sodium) En présence de soude, les ions Cu2 forment un précipité bleu. ==> Test de reconnaissance des ions Zinc (Zn2 ): Réactif utilisé la Soude (Hydroxyde de sodium) En présence de soude, les ions Zn2 forment un précipité blanc. Si on met beaucoup de soude, ce précipité se dissout et la solution redevient incolore ==> Test de reconnaissance des ions Fer II (Fe2 ): Réactif utilisé la Soude (Hydroxyde de sodium)
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