Table 2.
Weight of samples used for the production of the different concentration of copper oxide nanoparticles in molten salt (the ratio of NaNO3 to KNO3 is always 60/40).
| NaNO3 (g) | KNO3 (g) | CuSO4.5H2O (wt. %) | CuSO4.5H2O (g) | Total Weight (g) | Theoretical CuO (wt. %) after Production of Nanoparticles |
|---|---|---|---|---|---|
| 2.9925 | 1.995 | 0.25 | 0.0125 | 5 | 0.08 |
| 2.985 | 1.99 | 0.5 | 0.025 | 5 | 0.16 |
| 2.9775 | 1.985 | 0.75 | 0.0375 | 5 | 0.24 |
| 2.97 | 1.98 | 1 | 0.05 | 5 | 0.32 |
| 2.91 | 1.94 | 3 | 0.15 | 5 | 0.98 |
| 2.85 | 1.9 | 5 | 0.25 | 5 | 1.65 |
(Molar mass of CuO–79.55 g/mol, molar mass of CuSO4.5H2O–249.69 g/mol. Reaction going to completion = 79.55/249.69 × 100 = 31.86%. For 1 wt. % of CuSO4.5H2O, the theoretical CuO in wt. % is equal to the following: (31.86 × 0.05/100)/(31.86 × 0.05/100 + 2.97 + 1.98) = 0.32).