Table 3 Physical properties of prepared ZnO and CuO NPs as pigments.

From: Efficacy of zinc and copper oxide nanoparticles as heat and corrosion-resistant pigments in paint formulations

Property

ZnO NPs

CuO NPs

Bleeding (various solvents)

None

None

Fineness (Hegman units)

8 H

5 H

Moisture (%)

0.2

0.4

Oil Absorption (g/100 g)

115

75

pH

11

8

Loss on Ignition (%)

0

0

  1. Note L.O.I = Loss on Ignition, H = Hegman (fineness unit), The various solvents including Ethylene Glycol, Toluene, Butyl Glycol, Normal Butanol, Methyl Ethyl Ketone. Dichloromethane, Chloroform, and Carbon tetrachloride.
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