Identifikasi kation golongan 5
Tabulasi kation golongan Vliteratur: Vogel- analisis kualitatif anorganik
Pereaksi | Mg2+ | K+ | Na3+ | NH4+ |
NH3 +H2O |
Putih gelatin ↓Mg(OH)2Sedikit larut | |||
NaOH +berlebih |
Putih ↓Mg(OH)2 endapan tidak larut |
Gas amonia | ||
(NH4)2CO3 +H+ |
Putih↓4MgCO3Mg(OH)25H2O Endapan larut |
|||
Na2HPO4 +H2O |
Kristalin putih↓Mg(NH4)PO4 Sedikit larut |
|||
NaCO3+H+ | Kristalin putih ↓4MgCO3Mg(OH)25H2O Endapan larut |
|||
H2C4H4O6 +H2O |
Kristalin putih↓KHC4H4O6 Sedikit larut |
|||
HClO4 +H2O |
Kristalin putih ↓KClO4 Sedikit larut |
Tidak ada ↓ | ||
Mg(UO2)3(CHOO)9 | Kristalin putih ↓NaMg(UO2)3 (CH3OOO)9 | |||
Zn(UO2)3(CHOO)9 | Kristalin putih ↓NaZn(UO2)3 (CH3OOO)9 | |||
Nessler | ↓coklat/ warna coklat/ kuning |
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