Table 1: Water content in ethylene glycol and in the precursor with constant concentration of Zn(CH3COO)2·2H2O, which was 0.3254 mol/dm3 for all samples.

Sample
wt.%

Ethylene glycol, solvent0.27 ± 0.01
ZnO (1%)1.01 ± 0.04
ZnO (1.5%)1.41 ± 0.07
ZnO (2%)1.89 ± 0.11
ZnO (3%)2.93 ± 0.13
ZnO (4%)3.89 ± 0.11