Table 7.
Complex composition of transition metal-Mg tartarate complexes (C1 to C6)
| Complex | Code | Colour | Mol. Wt. | Amount of MgCl26H2O (gm) | Amount of metal salt (gm) | Tartarate solution added | % Yield of complex |
|---|---|---|---|---|---|---|---|
| MnMg(C4H4O6)2.4H2O | C1 | Flesh White |
447 | 6.822 | MnCl2.4H2O 6.644 |
15% | 74.55% |
| FeMg(C4H4O6)2.10H2O | C2 | Yellow | 556 | 5.484 | FeCl3 4.376 |
15% | 65.83% |
| CoMg(C4H4O6)2.8H2O | C3 | Pink | 523 | 5.830 | CoCl2.6H2O 6.823 |
15% | 78.28% |
| NiMg(C4H4O6)2.10H2O | C4 | Faint Green | 558.7 | 5.458 | NiCl2.6H2O 6.381 |
15% | 70.58% |
| CuMg(C4H4O6)2.6H2O | C5 | Blue | 491.5 | 6.204 | CuCl2.2H2O 5.202 |
15% | 66.75% |
| ZnMg(C4H4O6)2.8H2O | C6 | White | 529.4 | 5.760 | ZnCl2 8.147 |
15% | 73.52% |