Experimental Investigation on the Effect of Three Elemental Nanoparticles on the Performance Characteristics of Ethanol-Diesel Emulsion

Table 2

Physical and chemical properties of span 80 and tween 80.

	Appearance	Molecular weight (.mol^−1)	HLB (unitless)
Tween 80	Amber sticky liquid	1309.63	15
Span 80	Brown liquid	428.59	4.3