An Analytical Evaluation of the Synergistic Effect on Biodiesel Oxidation Stability Promoted by Binary and Ternary Blends Containing Multifunctional Additives

Table 4

Induction period (IP) for pure soybean biodiesel and containing individual additives obtained by Rancimat method. Sample code and concentration values are revealed in Tables 1–3.

Sample code	IP (hours)
P	3.76 ± 0.25
P- A1	0.20 ± 0.05
P-B1	0.80 ± 0.21
P-B2	1.05 ± 0.15
P-B3	1.20 ± 0.08
P-C1	5.04 ± 0.15
P-C2	6.75 ± 0.09
P-C3	7.49 ± 0.18
P-C4	3.40 ± 0.05
P-D1	4.99 ± 0.05
P-E1	3.76 ± 0.03