Аннотация:Metals, Oxides, Carbides or Carbon nanotubes are the most used applications of the nanoparticles which are equivalently used in nanofluids. The most stereotyped base fluids used are mainly ethylene glycol, water, oil, therminol, polymer solutions. In this approach of study, therminol D-12 is considerably used for mixing with different concentrations ranging from 0.05% to 0.3% weight/volume of nanoparticles. The best Amalgamation which is contemplated to combine with therminol D-12 is Copper Oxide nanoparticles. The morphological changes in the Copper Oxide nanoparticles are studied under the scanning electron microscopy technique (SEM). However, the properties are measured values have considerable significance compared to researchers data, new thermo-physical correlations are suggested for anticipating the thermal conductivity, viscosity, and density of nanofluids.